The same four sires turn up across GTPI, Net Merit, type, and the Red lists — and one great-granddam is quietly behind seven bulls on the two biggest lists. Pull your last order and count how many trace back.
Executive Summary: Every USA Holstein Top 10 released in August — GTPI, Net Merit $, PTAT, and both Red lists — traces back to basically four sire lines, led by Ocd Thorson Ripcord-ET, who sired 7 of the top 10 GTPI bulls and 8 of the top 10 for Net Merit $. Go one generation deeper and it gets tighter: one cow, T-Spruce Jaela 47718-ET, is a granddam or great-granddam behind seven different bulls split across the GTPI and Net Merit $ Top 10s. This is also the first proof run where the entire GTPI Top 10 sits above +3600, and the group’s floor climbed 77 points in just four months — nobody’s genetics went backward; the whole board just got faster. On the Red & White side, one cow — Aprilday Pwrstar Aurora-ET RC — placed three full-sibling sons in the same Top 10. If three or more straws in your current tank trace back to any of these names, you’re not diversifying your program; you’re just buying the same genetics three different ways. The real outcrosses do exist — Progenesis Espressivo-P and Genosource Jaco-ET are the cleanest options in this entire run — and under CDCB’s rebuilt fertility evaluation, the sires actually worth chasing for DPR, CCR, and feed efficiency aren’t necessarily the ones sitting at #1.
If you’re building a semen order off this proof run, here’s the decision that actually matters: most of the bulls you’re choosing between aren’t independent choices. Ocd Thorson Ripcord-ET is behind the majority of the top of both GTPI and Net Merit $. But pull the pedigree one generation further and the concentration gets sharper, not looser — Genosource Judson-ET, Genosource Jacoby-ET, and Genosource Jrue-ET turn out to be from the same embryo flush, not three separate “options.” Here’s the full breakdown, index by index, then the cow families underneath it.
Seven of the Ten Top GTPI Bulls Share the Same Sire
GTPI is the lead index here — it tied Net Merit $ on total churn (new entrants, drop-outs, big rank jumps), and GTPI wins the tiebreak as the industry’s primary total-merit number.
| Rank | Bull | GTPI (Aug 2026) | GTPI (Apr 2026) | Change | Sire | Maternal grandsire | UDC | FLC | KEY TRAIT NOTES |
| 1 | Genosource Jitters-ET | +3639 | +3552 (rank 4) | +87 | Ocd Thorson Ripcord-ET | Matcrest Arc Hayward-ET | +0.98 | −0.48 | Protein-driven gain; UDC +0.98, FLC −0.48 |
| 2 | Genosource Judson-ET | +3631 | new to the list | — | Ocd Thorson Ripcord-ET | Matcrest Arc Hobbs-ET | +0.84 | −0.78 | Full brother w/ Jacoby, Jrue; FLC −0.78 (weakest in Top 10) |
| 3 | Aurora GS Woodford-ET | +3622 | +3565 (rank 1) | +57 | Ocd Thorson Ripcord-ET | Ocd Trooper Sheepster-ET | +0.25 | −0.33 | !ANCHOR Only bull cracking both merit Top 10s |
| 4 | S-S-I Kingdom Formal-ET | +3619 | +3548 (rank 6) | +71 | Ocd Kahn Kingdom-ET | Ocd Trooper Sheepster-ET | n/a* | n/a* | Type outlier: highest PTAT +0.88, lowest components 183 CFP |
| 5 | Genosource Jacoby-ET | +3612 | new to the list | — | Ocd Thorson Ripcord-ET | Matcrest Arc Hobbs-ET | +0.83 | −0.63 | Full brother w/ Judson, Jrue; UDC +0.83, FLC −0.63 |
| 6 | Genosource Detox-ET | +3610 | new to the list | — | Ocd Thorson Ripcord-ET | Sdg-Ph Delux Dominance-ET | +0.42 | −0.56 | Delux Dominance cluster; UDC +0.42, FLC −0.56 |
| 7 | Genosource Riptide-ET | +3608 | new to the list | — | Ocd Thorson Ripcord-ET | Pine-Tree Easton-ET | +1.07 | −0.37 | Strongest UDC in Top 10 (+1.07); only maternal line standing apart |
| 8 | Genosource Jaco-ET | +3608 | +3480 (rank 86) | +128 | Matcrest Arc Hayward-ET | Stgen Nash Buxton-ET | +0.62 | −0.16 | Biggest jump in Top 10; best reliability (82%R); ties to Jaela family, not Ripcord |
| 9 | S-S-I Stagger Baelum-ET | +3606 | +3547 (rank 7) | +59 | Ocd Hayk Stagger-ET | Sdg-Ph Delux Dominance-ET | n/a* | n/a* | Fell 2 ranks despite gain; best GTPI Top 10 fertility (DPR +3.0, CCR +5.2) |
| 10 | STgen Early-ET | +3605 | new to the list | — | Ocd Thorson Ripcord-ET | Sdg-Ph Delux Dominance-ET | −0.28 | −0.69 | Delux Dominance grandson; also Net Merit $ #12 |
All figures per Holstein Association USA’s GTPI ranking (CDCB genomic PTA inputs), April 2026 and August 2026 runs.
The udder-vs-legs split matters here. Every single bull with data above carries positive UDC (udder composite) and negative FLC (feet & legs composite) — this isn’t one bull’s quirk, it’s the whole group’s signature. Genosource Riptide-ET’s +1.07 UDC is the strongest udder composite in the Top 10; Genosource Judson-ET’s −0.78 FLC is the weakest leg composite. Raw PTAT numbers wash this split out; UDC/FLC doesn’t.
Nine of ten have a close relative in this same Top 10, and the real relationships run deeper than sire lines. Only Genosource Riptide-ET’s maternal line stands genuinely apart. Everyone else sorts into one of four family clusters:
- The Delux Dominance cluster: Genosource Detox-ET and STgen Early-ET trace to Sdg-Ph Delux Dominance-ET as maternal grandsire.
- The Trooper Sheepster cluster: Aurora GS Woodford-ET and S-S-I Kingdom Formal-ET share the same maternal grandsire and the same maternal great-grandsire.
- Full brothers: Genosource Judson-ET and Genosource Jacoby-ET — same sire, same dam (Genosource Hobbs 81451-ET), born the same day.
- Uncle and nephew: Genosource Jitters-ET and Genosource Jaco-ET, tracing to the same T-Spruce Jaela 47718-ET cow family (full detail below).
Six of these ten weren’t in the Top 10 (or on the list at all) as of the April 2026 run. The spread from #1 to #10 actually tightened even as the group moved up — 37 points top-to-bottom in April, 34 now — and the floor climbed 77 points in four months. Every one of the six April Top 10 bulls that got bumped out entirely (Beyond Mican Hagrid, S-S-I Richard Chichester, OCD Whoops Sabotage, Siemers SSI Bridgerton, Pen-Col GS 86807, Welcome Gustavsson) still gained ground — 20 to 40 points apiece. Nobody backed up; the whole board just got faster.
One thing to hold in mind on every number above: none of these ten have a single daughter on the ground yet (0 Dtrs, 0 Herds on every individual proof, 77-82%R across the board). This is a genomic snapshot, not a locked verdict.
| BULL | GTPI RANK NOW | GTPI RANK BEFORE | INDEX CHANGE | STATUS | NOTE |
|---|---|---|---|---|---|
| Genosource Jaco-ET | 8 | 86 | !HIGH +128 | Riser, in Top 10 | Biggest jump this run; best reliability (82%R) |
| Genosource Jitters-ET | 1 | 4 | +87 | Riser, in Top 10 | New #1, protein-driven |
| S-S-I Kingdom Formal-ET | 4 | 6 | +71 | Riser, in Top 10 | Type outlier of the group |
| S-S-I Stagger Baelum-ET | 9 | 7 | +59 | !DROP Riser, rank fell | Best GTPI Top 10 fertility, lost 2 ranks anyway |
| Aurora GS Woodford-ET | 3 | 1 | +57 | !DROP Riser, rank fell | Gained ground, lost the #1 spot |
| Pen-Col GS 86807-ET | ~50s (out) | 9 | +38 | !DROP Fell out of Top 10 | Gained points, still bumped out |
| Siemers SSI Bridgerton-ET | ~60s (out) | 8 | +30 | !DROP Fell out of Top 10 | Gained points, still bumped out |
| 4 other April dropouts* | out | Top 10 (Apr) | +20 to +40 (range) | !DROP Fell out of Top 10 | Beyond Mican Hagrid, S-S-I Richard Chichester, OCD Whoops Sabotage, Welcome Gustavsson |
The movers. Genosource Jaco-ET’s +128 is the biggest jump in the Top 10, and he’s also carrying this group’s cleanest reliability at 82%R. Genosource Jitters-ET is next at +87, driven more by protein yield than type. S-S-I Kingdom Formal-ET picked up 71 points and is the type outlier here — highest PTAT in the group at +0.88, lowest components at 183 CFP. S-S-I Stagger Baelum-ET gained 59 and posts the best fertility figures of the whole Top 10 under the rebuilt evaluation (DPR +3.0, CCR +5.2, FSC +154.0) — and still lost two ranks, which says everything about how fast this list is moving.
Who actually slipped? Aurora GS Woodford-ET gained 57 points and still fell from #1 to #3 — genetics up, rank down, because the list got faster underneath him. Pen-Col GS 86807-ET and Siemers SSI Bridgerton-ET both fell clean out of the Top 10 (from #9 and #8 down to the 50s and 60s) despite gaining 38 and 30 points each.
The CFP-and-PL-vs-legs trade every Ripcord buyer is actually making. Every Ripcord son here shows the identical linear pattern: negative Feet & Legs Score and hock-in Rear Legs-Rear. But look at what comes with it — components and productive life both hold up well across the same group:
| Ripcord son | CFP (Fat+Protein) | PL | Feet & Legs Score | Rear Legs-Rear |
| Genosource Jitters-ET | +197 | +4.0 | −0.34 | −0.93 |
| Genosource Judson-ET | +216 | +3.3 | −0.69 | −1.11 |
| Genosource Jacoby-ET | +192 | +4.8 | −0.75 | −1.25 |
| Aurora GS Woodford-ET | +217 | +4.1 | −0.39 | −0.60 |
| Genosource Detox-ET | +198 | +4.9 | −0.40 | −1.07 |
| Genosource Riptide-ET | +176 | +4.9 | −0.34 | −1.02 |
| STgen Early-ET | +221 | +3.4 | −0.46 | −1.29 |
Nobody in this group is under +176 CFP or under +3.3 PL — the feet-and-legs trade is real, but it’s not costing components or longevity on paper. Know the trade, don’t assume it’s a dealbreaker on its own.
The Cow Families Actually Behind These Numbers
Sire and maternal grandsire only tell you two generations. Pull the actual sire cards one generation further and a single cow shows up again and again in the MGD or MGGD field: T-Spruce Jaela 47718-ET.
- Genosource Jaco-ET’s own dam is Genosource Jaunt 75046-ET — and Genosource Jaunt 75046-ET’s own dam is T-Spruce Jaela 47718-ET
- Genosource Jitters-ET’s dam is Genosource Jamocha 81506-ET, whose dam is Genosource Jaunt 75046-ET (Jitters’ MGD) — meaning Jaco and Jamocha are half-siblings out of Jaunt, and Jaco is Jitters’ maternal uncle.
- Genosource Jethro-ET’s dam, Genosource Hobbs 81296-ET, is also a daughter of Genosource Jaunt 75046-ET — so Jaco, Jitters, and Jethro all trace to Jaunt within two generations, and to Jaela beyond that.
- Genosource Judson-ET, Genosource Jacoby-ET, and Genosource Jrue-ET are all from, Genosource Hobbs 81451-ET — they aren’t just “the same female line,” they’re full brothers from one flush (Judson and Jacoby born 07/31/2025, Jrue born 07/29/2025). Their MGD is Genosource Jagger 74599-ET, whose own dam is T-Spruce Jaela 47718-ET.
- Genosource Patriot 76-ET (NM$ #3) traces through a fourth branch — dam Genosource Julep 81114-ET, MGD Genosource Jaelyn 73387-ET, MGGD T-Spruce Jaela 47718-ET.
Add it up: seven bulls (Jitters, Judson, Jacoby, Jethro, Jrue, Jaco, Patriot 76) split across the GTPI and Net Merit $ Top 10s all run back to T-Spruce Jaela 47718-ET through four different branches. That’s a deeper concentration than the sire-level “Ripcord” story alone tells you.
A second, tighter cow family sits under the Delux Dominance cluster. Genosource Detox-ET, Genosource Domination-ET, and Genosource Decipher-ET all share the identical dam (Genosource Devi 77158-ET), the identical MGD (Genosource Devoid 70904-ET), and the identical MGGD: Genosource Deviate 46921-ET. That’s one cow family stacking three Top 10 sons through one single daughter — tighter than the Jaela group, which spreads across four branches. Delux Dominance’s other daughters run through entirely separate families: Genosource Valkyrie-ET traces to Genosource Viral 47870-ET and TJR Nashvile Vicky 45221-ET; Genosource Emulate-ET traces to Genosource Evident 72519-ET and Pine-Tree 8178 Monu 8707-ET; and S-S-I Stagger Baelum-ET’s dam, Badger Ssi Dominanc 6001-ET, sits in a completely different ownership group’s cow family (Badger Ssi Rashan 17470-ET), showing Delux Dominance is working through genuinely distinct female lines, not one repeated cow.
On the Red & White side, the Aprilday Pwrstar Aurora-ET RC line goes back further than “one prolific cow.”Aprilday Hrok Athens-Red-ET’s own card lists his dam as Aurora, and Aurora’s own dam (his MGD) as S-S-I Trumpet Alarm-Red-ET, tracing further to Aprilday Ron Trumpet-Red-ET and Aprilday Magnitude Angel-ET RC. So the reason Aurora is stamping out three Top 10 sons by three different sires isn’t a fluke pairing — it’s a cow bred out of an established Aprilday Trumpet-Red female line built for exactly this kind of consistency.
Bomaz Royalist-P-ET traces to the Bomaz Legacy 608-ET VG-86 cow family (via dam Bomaz Military-P 11665-ET and MGD Bomaz Conway 10056-ET). Progenesis Safron traces to the Holyland Top Dog family (dam Holyland Earlybird Sunshine RC, MGD Holyland 3528 Top Dog 4366 RC). Both are genuinely separate female lines from everything above — real outcrosses on the dam side, not just the sire side.
| FAMILY / LINE | TYPE | BULLS TRACED | INDEX LISTS AFFECTED | CONCENTRATION NOTE |
|---|---|---|---|---|
| T-Spruce Jaela 47718-ET | Cow family (MGD/MGGD) | Jitters, Judson, Jacoby, Jethro, Jrue, Jaco, Patriot 76 (7 bulls) | GTPI Top 10 + NM$ Top 10 | !RISK Four different branches — deepest concentration in this run |
| Ocd Thorson Ripcord-ET | Sire | 7 of GTPI Top 10, 8 of NM$ Top 10 | GTPI, NM$ | !HIGH Dominant sire line across both merit indexes |
| Sdg-Ph Delux Dominance-ET | Maternal grandsire | Detox, Domination, Decipher (via dam Devi 77158-ET) + Valkyrie (Venice 78181-ET) + Emulate (Eminence 76892-ET) + Early | 3 of GTPI Top 10, 5 of NM$ Top 10 | Three distinct daughters; the Devi line alone stacks 3 sons |
| Genosource Hobbs 81451-ET | Dam (single embryo flush) | Judson, Jacoby, Jrue — full brothers | GTPI Top 10 (Judson, Jacoby) + NM$ Top 10 (Jrue) | !RISK Same flush — not 3 independent choices |
| Woodcrest King Doc | Maternal grandsire/great-grandsire | Redcarpet Story Arc, SHG Lego, Stone-Front Eyecandy Apollo, Jimtown Nelson-ET + 3 more on the Red/RC PTAT list (7 total) | PTAT Top 10 + Red/RC PTAT Top 10 | Reaches across both the black-and-white and red populations |
| Aprilday Pwrstar Aurora-ET RC | Dam | Aesop-Red, Ancho Peppr-Red, Hrok Athens-Red — full siblings | Red & White GTPI Top 10 (#3, #6, #7) | !RISK Three full sibs from one cow, three different sires |
| Bomaz Orpheus-Red-ET | Sire | Aesop-Red, Okafor-Red, Lyon-Red (ranks #3–#5) | Red & White GTPI Top 10 | Three straight bulls, back-to-back ranks |
Net Merit’s Top 10 Is Even More Inbred Than GTPI’s
| Rank | Bull | NM$ (Aug 2026) | NM$ (Apr 2026) | Change | GTPI rank | Sire | Maternal grandsire | UDC | FLC |
| 1 | Genosource Jentry-ET | $1,326 | new | — | #24 | Ocd Thorson Ripcord-ET | Genosource Brockington-ET | n/a* | n/a* |
| 2 | Genosource Domination-ET | $1,324 | new | — | #47 | Ocd Thorson Ripcord-ET | Sdg-Ph Delux Dominance-ET | +0.21 | −0.95 |
| 3 | Genosource Patriot 76-ET | $1,311 | $1,265 (rank 7) | +$46 | #50 | Ocd Thorson Darth Vader-ET | Genosource Brockington-ET | n/a* | n/a* |
| 4 | Genosource Valkyrie-ET | $1,309 | $1,308 (rank 1) | +$1 | not in Top 100 (3492) | Ocd Thorson Ripcord-ET | Sdg-Ph Delux Dominance-ET | −0.81 | −1.41 |
| 5 | Genosource Emulate-ET | $1,301 | new | — | #65 | Ocd Thorson Ripcord-ET | Sdg-Ph Delux Dominance-ET | +0.00 | −1.06 |
| 6 | Aurora GS Woodford-ET | $1,299 | $1,296 (rank 2) | +$3 | #3 | Ocd Thorson Ripcord-ET | Ocd Trooper Sheepster-ET | +0.25 | −0.33 |
| 7 | Genosource Jrue-ET | $1,293 | new | — | #30 | Ocd Thorson Ripcord-ET | Matcrest Arc Hobbs-ET | +0.31 | −0.56 |
| 8 | Genosource Jethro-ET | $1,284 | new | — | #81 | Ocd Thorson Ripcord-ET | Matcrest Arc Hobbs-ET | +0.44 | −0.63 |
| 9 | Genosource Viper-ET | $1,284 | $1,296 (rank 3) | −$12 | not in Top 100 (3518) | Ocd Thorson Ripcord-ET | Sdg-Ph Delux Dominance-ET | n/a* | n/a* |
| 10 | Genosource Decipher-ET | $1,279 | new | — | #49 | Stgen T Schmidt-ET | Sdg-Ph Delux Dominance-ET | +0.53 | −0.40 |
Per CDCB’s Net Merit $ ranking for the April and August 2026 runs.
Eight of these ten are Ripcord sons, and five trace to Sdg-Ph Delux Dominance-ET on the bottom side — through three different daughters (full detail in the cow-family section above): Genosource Devi 77158-ET (Domination, Decipher), Genosource Venice 78181-ET (Valkyrie), and Genosource Eminence76892-ET (Emulate). Separately, Genosource Julep 81114-ET produced Genosource Jentry-ET (by Ripcord) and Genosource Patriot 76-ET (by Ocd Thorson Darth Vader-ET) — maternal half-brothers at #1 and #3, tracing to Genosource Brockington-ET rather than Delux Dominance. Add Genosource Jrue-ET and Genosource Jethro-ET (full brother with Judson, per the cow-family section) and Aurora GS Woodford-ET, and every bull in this Top 10 ties back into a cluster already mapped above.
What that spread means in dollars: the gap between #1 Jentry ($1,326) and #10 Decipher ($1,279) is $47 per animal. Scale that across a 100-cow group of daughters and you’re looking at roughly $4,700 in expected lifetime profitability separating the top and bottom of this list — a real number, even though every bull here is still a first-crop genomic proof.
The UDC/FLC split is sharper here than on GTPI. Genosource Valkyrie-ET’s −1.41 FLC is the single worst functional-leg composite in either merit Top 10, paired with the highest fertility number in the group (FSC +150.0) — the trade-off is explicit, not hidden. Genosource Domination-ET, by contrast, posts the best fertility (DPR +2.8, CCR +4.9, FSC +143.0) with a far less extreme FLC (−0.95). Genosource Viper-ET is the one genuine decliner in this whole file set — down $12, with a 126 lb drop in milk PTA to match. That’s a real re-evaluation, not a crowding story.
The Type List Has Its Own Version of Ripcord
Ranked by PTA Type itself; TPI and Net Merit $ shown for context. Per CDCB’s PTAT ranking, April and August 2026 runs.
| Rank | Bull | PTA Type (Aug) | PTA Type (Apr) | Change | TPI | NM$ | UDC | FLC | Sire | Traces to |
| 1 | Redcarpet Story Arc-ET | +3.77 | +3.78 (3) | −0.01 | 2235 | −$642 | n/a* | n/a* | Farnear Architect-ET RC | Woodcrest King Doc |
| 2 | SHG Lego | +3.76 | +3.84 (2) | −0.08 | 2291 | −$640 | n/a* | n/a* | Siemers Fitters Choice-ET | Woodcrest King Doc |
| 3 | Stone-Front Eyecandy Apollo | +3.70 | +3.72 (4) | −0.02 | 2447 | −$428 | n/a* | n/a* | Mb-Luckylady Eye Candy-ET | Woodcrest King Doc |
| 4 | Genosource Seenofear-ET | +3.66 | +3.71 (5) | −0.05 | 2792 | −$73 | n/a* | n/a* | Mr Ernestanthony Havenofear | Croteau Lesperron Unix |
| 5 | Oakfield Larizio Tage-ET | +3.64 | new | — | 2919 | $82 | n/a* | n/a* | Comestar Larizio MW | Siemers Doc Hanford |
| 6 | Curlys Admire | +3.59 | +3.63 (7) | −0.04 | 2633 | −$181 | n/a* | n/a* | Siemers Exc Hanans 31753-ET | Maverick-I Crush |
| 7 | Jimtown Nelson-ET | +3.59 | +3.69 (6) | −0.10 | 2433 | −$451 | n/a* | n/a* | Peak Hammer-ET | Woodcrest King Doc; Eclipse Milio-ET |
| 8 | Genosource Jason Derulo-ET | +3.54 | +3.52 (12) | +0.02 | 3008 | $248 | +2.42 | +1.51 | Farnear Delta-Lambda-ET | Croteau Lesperron Unix |
| 9 | Ruann Karat-45955-ET | +3.53 | +3.92 (1) | −0.39 | 2626 | −$297 | +2.25 | +1.59 | Siemers Wolf Hulu 37006-ET | Peak Hammer-ET |
| 10 | Eclipse Milio-ET | +3.51 | +3.58 (8) | −0.07 | 1991 | −$876 | n/a* | n/a* | Wilt Emilio | Maple-Downs-I G W Atwood |
*No individual sire card was available for these eight bulls, so UDC/FLC isn’t shown for them.
This is the real answer to “does frame cost you function” on this list, and for the two bulls we have full data on, the answer is no. Genosource Jason Derulo-ET (+3.34 Stature, “Tall”) still posts +2.42 UDC and +1.51 FLC — both elite. Ruann Karat-45955-ET, despite the biggest type drop on the list (−0.39, from #1 to #9) and genuinely extreme frame (+5.02 Stature, +4.31 Thurl Width), still carries +2.25 UDC and +1.59 FLC — her fall in rank is about a fertility and livability penalty (Fert. Index −0.5, Livability −4.0), not a udder or leg problem. Her dam line traces through Ruann Hammer 24Karat-30217 and Ruann Moov 24Karat-12241-ET to Katalinas Cb 24Karat-ET — the Ruann “24Karat” cow family, a genuinely distinct female line from everything else in this piece.
Woodcrest King Doc sits as grandsire or great-grandsire on four of these ten (Redcarpet Story Arc-ET, SHG Lego, Stone-Front Eyecandy Apollo, Jimtown Nelson-ET), and Croteau Lesperron Unix backs two more (Seenofear, Jason Derulo — the latter’s own dam line running Genosource Jawdropper-ET back to Ladyrose Caught Your Eye-ET EX-94). Jimtown Nelson-ET is also a direct son of Peak Hammer-ET — the same sire behind Ruann Archer-23755-ET on the Red list below — and a maternal grandson of Eclipse Milio-ET, his own #10 on this same list. Eclipse Milio-ET’s own dam line, Eclipse Octane Princess 13-ET VG-88 back to Eclipse Atwood Princess 8 VG-89, is the “Eclipse Princess” family — his extreme profile (−$876 Net Merit, RFI +297, Feed Saved −741, for +4.51 Stature and +2.79 Strength) is the most lopsided trade in the whole dataset.
Where’s the Real Outcross in Red Carrier GTPI?
Per Holstein Association USA’s Red Carrier GTPI ranking (CDCB genomic PTA inputs), April and August 2026 runs.
| Rank | Bull | GTPI (Aug) | GTPI (Apr) | Change | Sire |
| 1 | Aprilday Micn Nickels-RC-ET | +3428 | new | — | |
| 2 | Bomaz Royalist-P-ET | +3425 | +3363 (2) | +62 | Winstar Rolf-P-ET |
| 3 | Progenesis Safron | +3408 | new | — | Progenesis Watchman |
| 4 | Progenesis Espressivo-P | +3382 | +3370 (1) | +12 | Beyond Hi-Level-ET |
| 5 | Siemers Parfume-RC-ET | +3377 | new | — | |
| 6 | Fly-Higher W Humberto-ET | +3371 | new | — | |
| 7 | S-S-I Siemers Falciform-ET | +3362 | +3322 (6) | +40 | Ocd Trooper Sheepster-ET |
| 8 | Winstar Endgame-P-ET | +3352 | +3302 (8) | +50 | Denovo 21054 Encourage-ET |
| 9 | OCD Morris Lycoming-ET | +3348 | +3347 (3) | +1 | Genosource Morris-Red-ET |
| 10 | OCD Morris Leopard-ET | +3326 | +3323 (5) | +3 | Genosource Morris-Red-ET |
Answer: Progenesis Espressivo-P, and here’s his complete stack for anyone linebreeding around him: Beyond Hi-Level-ET (sire) x Trifecta Hike-ET (MGS) x 3star Oh Ranger Red-ET (MGGS), with the dam side running Progenesis Hike Escape RC x Progenesis Ranger Eskimo P RC x Progenesis Einstein Even P RC. No traceable tie to Ripcord, Delux Dominance, Woodcrest King Doc, or T-Spruce Jaela — the cleanest true outcross found anywhere in this proof run, on both the sire and dam sides. Genosource Jaco-ET’s full stack — Matcrest Arc Hayward-ET x Stgen Nash Buxton-ET x Genosource Captain-ET, dam side Genosource Jaunt 75046-ET x T-Spruce Jaela 47718-ET x T-Spruce Lionel 13196-ET — is the closest mainstream alternative, but note he’s still tied to the Jaela family covered above, just not through Ripcord.
S-S-I Siemers Falciform-ET, by contrast, is a direct son of Ocd Trooper Sheepster-ET, the same maternal grandsire behind Woodford and Kingdom Formal on the GTPI list. OCD Morris Lycoming-ET and OCD Morris Leopard-ET are the same cross run twice, both by Genosource Morris-Red-ET out of the OCD Thorson Liana female family. Bomaz Royalist-P-ET carries a genuinely stacked polled/red package (Winstar Rolf-P-ET over Bomaz Military-P, genetic codes PC PO RC) tracing to the Bomaz Legacy cow family, with strong udder linears (UDC +1.07, FLC +0.93 — both elite). Progenesis Safron is Canadian-bred (HOCAN registration), Progenesis Watchman on top, tracing to the Holyland Top Dog family on the bottom (UDC +1.21, FLC +0.49).
One Cow Just Placed Three Sons in the Same Top 10
Per Holstein Association USA’s Red & White GTPI ranking (CDCB genomic PTA inputs), April and August 2026 runs. The current-run source file skips a printed rank “3” — ranks below are re-sequenced by table order and are derived ranks, not official ones.
| Bull | GTPI (Aug) | GTPI (Apr) | Change | Sire | Dam | |
| 1 | Siemers Amaranth-Red-ET | +3322 | new | — | ||
| 2 | Siemers Poppy-Red-ET | +3256 | new | — | ||
| 3 | Aprilday Orphs Aesop-Red-ET | +3244 | +3177 (5) | +67 | Bomaz Orpheus-Red-ET | Aprilday Pwrstar Aurora-ET RC |
| 4 | Denovo 21873 Okafor-Red-ET | +3228 | +3194 (1) | +34 | Bomaz Orpheus-Red-ET | Denovo Hercules 14124-ET RC |
| 5 | Aprilday Orph Lyon-Red-ET | +3228 | +3168 (10) | +60 | Bomaz Orpheus-Red-ET | Aprilday Powerstar Lyfe-ET RC |
| 6 | Aprilday Ancho Peppr-Red-ET | +3227 | +3161 (11) | +66 | Trent-Way-Js Pepper-Red-ET | Aprilday Pwrstar Aurora-ET RC |
| 7 | Aprilday Hrok Athens-Red-ET | +3226 | +3180 (2) | +46 | Trent-Way Hayk Hard Rock-ET | Aprilday Pwrstar Aurora-ET RC |
| 8 | 3Star Patser-Red-ET | +3223 | +3175 (7) | +48 | 3star Oh Shield Rdc-ET | 3STAR Patty |
| 9 | Stgen Ocean-Red-ET | +3214 | +3179 (3) | +35 | Genosource Morris-Red-ET | Trent-Way Fig Patty Cake-ET |
| 10 | Trent-Way Richland-Red-ET | +3200 | new | — | – | – |
Aprilday Pwrstar Aurora-ET RC bred to three different sires and produced Aprilday Orphs Aesop-Red-ET (#3), Aprilday Ancho Peppr-Red-ET (#6), and Aprilday Hrok Athens-Red-ET (#7) — full siblings, all in this same Top 10, out of a cow whose own dam line (S-S-I Trumpet Alarm-Red-ET back to Aprilday Ron Trumpet-Red-ET) is a genuinely established Aprilday female line, per the cow-family section above. Bomaz Orpheus-Red-ET sired three of the ten outright (Aesop-Red, Okafor-Red, Lyon-Red, ranks #3-#5 back to back). Six of ten spots trace to essentially one cow family and one sire. Siemers Amaranth-Red-ET is a genuine new #1 — 94 points clear of April’s leader, a far wider gap than April’s own 17-point spread. OCD Morris Spirit-Red-ET, April’s #4, printed the identical GTPI number in both runs (+3177, no change at all) and still slid to roughly #20 — zero genetic movement, pure traffic.
Woodcrest King Doc’s Reach Doesn’t Stop at the Black-and-White Herd
Per CDCB’s Red Carrier & Red and White PTAT ranking, April and August 2026 runs.
| Rank | Bull | PTA Type (Aug) | PTA Type (Apr) | Change | Sire | Runs back to |
| 1 | Redcarpet Story Arc-ET | +3.77 | +3.78 (2) | −0.01 | Farnear Architect-ET RC | Woodcrest King Doc |
| 2 | Ruann Karat-45955-ET | +3.53 | +3.92 (1) | −0.39 | Siemers Wolf Hulu 37006-ET | Peak Hammer-ET |
| 3 | Ruann Archer-23755-ET | +3.25 | +3.32 (4) | −0.07 | Peak Hammer-ET | Woodcrest King Doc |
| 4 | Shg Lazer-ET | +3.20 | +3.25 (7) | −0.05 | Peak Haxl-ET | Woodcrest King Doc |
| 5 | Eskdale Hulu Shoutout-ET | +3.11 | +3.56 (3) | −0.45 | Siemers Wolf Hulu 37006-ET | Peak Axl-ET |
| 6 | Progenesis Alastor | +3.05 | +3.08 (12) | −0.03 | Fepro Lindt | clean of the other clusters |
| 7 | Sunquest Holy Crypto PP-ET | +3.04 | +3.15 (9) | −0.11 | Siemers Fgo Holy-P 40167-ET | Woodcrest King Doc |
| 8 | Siemers Lazer Hambitious-ET | +3.03 | +3.15 (10) | −0.12 | Vogue Lazer-PP-RED | Woodcrest King Doc |
| 9 | Farnear Aircraft-ET | +3.02 | +3.08 (13) | −0.06 | Siemers Doc Hancock | Blondin Integral RC |
| 10 | Golden-Oaks Tango-Red-ET | +3.01 | new | — | Farnear Altitude-Red-ET | clean of the other clusters |
Between this list and the all-breed PTAT ranking above, Woodcrest King Doc is grandsire or great-grandsire behind at least seven bulls total. Ruann Archer-23755-ET’s own card confirms his dam line: Ruann Doc Apple-80503-ET RC back to Ms Pg Pv Doorman Aspire-ET RC and Ms Apples Uno Armana-ET RC — a distinct Ruann female line from the “24Karat” family behind Ruann Karat-45955-ET. Two more sibling pairs show up here too: Shg Lazer-ET is a maternal half-brother of SHG Lego (same dam), and Eskdale Hulu Shoutout-ET is a paternal half-brother of Ruann Karat-45955-ET (same sire, Siemers Wolf Hulu 37006-ET). Farnear Aircraft-ET is the one genuinely daughter-proven bull found in this entire lookup (91-92%R with a full production and udder-linear data set), a different animal from every genomic-only bull surrounding him on this list.
Why the Same Bulls Keep Showing Up
Nothing sits at the top of every index here, because several of these populations don’t overlap — the Red segments run under the mainstream ceiling, and both Type lists actively select against the bulls topping the merit charts. The real pattern isn’t which bulls agree; it’s how few animals — and how few cows — are holding up four rankings that look unrelated on the surface.
Closest thing to cross-index agreement:
- Aurora GS Woodford-ET: GTPI #3, Net Merit $ #6 — the only bull cracking both merit Top 10s, and the cleanest-bred Ripcord son in either one.
- STgen Early-ET: GTPI #10, Net Merit $ #12 — also a Delux Dominance grandson.
The four sire lines actually running this proof run:
| Grandsire | Role | Where he shows up |
| Ocd Thorson Ripcord-ET | Sire | 7 of GTPI Top 10, 8 of NM$ Top 10 |
| Sdg-Ph Delux Dominance-ET | Maternal grandsire | 3 of GTPI Top 10, 5 of NM$ Top 10, through 3 different daughters |
| Woodcrest King Doc | Maternal grandsire/great-grandsire | At least 7 bulls across both Type lists |
| Bomaz Orpheus-Red-ET / Aprilday Pwrstar Aurora-ET RC | Sire / dam | 3-6 of the Red & White Top 10 |
And underneath the sire lines, one cow family — T-Spruce Jaela 47718-ET — backs seven bulls across the GTPI and Net Merit $ Top 10s combined, cutting across three different immediate sires (Ripcord, Hayward, Darth Vader).
What This Means for Your Breeding Program
| ROLE | BULL | INDEX HIGHLIGHTS | WHEN TO USE | WHEN TO AVOID |
|---|---|---|---|---|
| Genuine Outcross | Progenesis Espressivo-P | Red Carrier GTPI #4 (+3382); no traceable tie to Ripcord, Delux Dominance, Woodcrest King Doc, or T-Spruce Jaela | Tank already loaded with Ripcord/Jaela genetics, need a true clean pedigree | — safe pick, just watch your own future concentration |
| Closest Mainstream Outcross | Genosource Jaco-ET | GTPI #8 (+3608), !HIGH +128 gain, 82%R best reliability in Top 10 | Want Top 10 GTPI power with the cleanest reliability available | Still ties to T-Spruce Jaela family — don’t stack with other Jaela-line bulls |
| Fertility/Feed Specialist (NM$) | Genosource Domination-ET | NM$ #2 ($1,324); DPR +2.8, CCR +4.9, FSC +143.0, Feed Saved +402 | Herds prioritizing fertility and feed efficiency under the rebuilt evaluation | Tank is already Ripcord/Delux Dominance heavy |
| Fertility/Feed Specialist (GTPI) | S-S-I Stagger Baelum-ET | GTPI #9 (+3606); best GTPI Top 10 fertility — DPR +3.0, CCR +5.2, FSC +154.0 | Want the same fertility profile in a GTPI-ranked package | Losing rank fast — list is moving underneath him |
| Frame With Function Intact | Genosource Jason Derulo-ET | PTAT #8 (+3.54); Stature +3.34 (“Tall”) yet UDC +2.42, FLC +1.51 | Need added frame without sacrificing udder/leg composites | — rare balanced profile, no clear downside noted |
| !RISK Extreme Frame Trade | Eclipse Milio-ET | PTAT #10 (+3.51); Stature +4.51, Strength +2.79, but NM$ −$876, RFI +297, Feed Saved −741 | Show-ring/frame-only priority, feed cost is not a constraint | Any commercial or feed-cost-sensitive herd — most lopsided trade in the dataset |
| !RISK Type Leader, Fertility Penalty | Ruann Karat-45955-ET | PTAT #9 (+3.53, down from #1); Stature +5.02, Thurl Width +4.31, but Fert. Index −0.5, Livability −4.0 | Frame/type priority where fertility risk can be actively managed | Herds already fighting fertility or livability issues |
| Daughter-Proven Anchor | Farnear Aircraft-ET | Red/RC PTAT #9 (+3.02); 91-92%R — only daughter-proven bull in this dataset | Want a lower-risk proof to anchor a mating plan alongside genomic picks | Need maximum raw index — genomic Top 10 sires outscore him |
- Check the maternal grandsire — and one generation past that — before your next order. A “different” bull on the catalog page can still be a half-brother, or worse, a full brother from the same flush, once you flip the card over.
- If you need fertility and feed economics under the new evaluation, go with Genosource Domination-ET(DPR +2.8, CCR +4.9, FSC +143.0, Feed Saved +402) or S-S-I Stagger Baelum-ET (DPR +3.0, CCR +5.2, FSC +154.0).
- If you need a genuine outcross on both sire and dam sides, Progenesis Espressivo-P is your cleanest option in this entire file set — his complete stack is above. Genosource Jaco-ET is the closest mainstream alternative, though he’s still tied to the T-Spruce Jaela family, just not through Ripcord.
- If you’re breeding Red & White, decide on purpose. Aesop-Red, Ancho Peppr-Red, and Hrok Athens-Red are all out of the same cow — pick one deliberately, don’t default into “different bull, same family” by accident.
- This week: pull your current tank list and cross-check sire, maternal grandsire, and — for anything Genosource-branded — the MGD/MGGD fields against T-Spruce Jaela 47718-ET and Genosource Deviate 46921-ET. If three or more straws trace to the same cow family, that’s your cue to diversify before your next order, not after your next calf crop.
Full Lists
- USA – GTPI – >12 months & NAAB-code – 08/26
- USA – Net Merit – >12 months & NAAB-code – 08/26
- USA – PTAT Bulls = >12 Months – 08/26
- USA | Top *RC GTPI >12 months & NAAB-code 08/26
- USA | Top R&W GTPI >12 months & NAAB-code 08/26
- USA | Top R&W & *RC PTAT Bulls >12 Mths – 08/26
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Sourcing, Methodology, and Limitations
How the pedigrees were sourced. Individual sire card data (dam, MGS, MGD, MGGS, MGGD, UDC, FLC, CFP, PL, and full linear profiles). Those figures are reported exactly as published; where a bull is also marketed through another AI organization’s own catalog, small presentation differences (rounding, which trait subset is displayed) can exist between sources. Nine NAAB codes — Aprilday Micn Nickels-RC-ET, Siemers Parfume-RC-ET, Fly-Higher W Humberto-ET, Siemers Amaranth-Red-ET, Siemers Poppy-Red-ET, Trent-Way Richland-Red-ET, and the UDC/FLC composites for Kingdom Formal, Stagger Baelum, Jentry, Patriot 76, and Viper — did not return a match.
Methodology. Data drawn from six comparable Holstein Association/CDCB ranking files (April and August 2026 USA proof runs), NAAB-coded bulls over 12 months, cross-referenced with individual sire summary sheets. Bulls were matched run-to-run strictly by NAAB code; a bull with no NAAB match in the prior file is a new entrant, one absent from the current file is a drop-out — no missing value was estimated. GTPI led this analysis on a tied top-10 volatility score of 16 against Net Merit $ (new entrants + drop-outs + large rank shifts), tiebroken toward GTPI as the industry’s primary total-merit ranking. The Red & White GTPI file’s missing printed rank “3” was resequenced by row order and is a derived rank. Genomic inbreeding figures reflect each bull’s own relationship to the active cow population, not a herd or breed average.
