Home Affairs takes the throne as Super Seth joins Coolmore’s big‑money stallion roster reset

Coolmore Australia has reshaped the top of its 2026 stallion roster, installing Home Affairs at $176,000 (inc GST) and positioning $70 million new arrival Super Seth as its key supporting act after his relocation from Waikato Stud.

The pair headline Coolmore’s new-look stallion roster with Home Affairs joining illustrious company to start his stud career by siring this season’s Golden Slipper-winning colt Guest House, while Super Seth arrives with three Australian Group 1 winners from his first crop and yearlings selling for up to $950,000

Super Seth will stand at a fee of $137,500 in his seventh season at stud and his first in Australia.

As the sire of Guest House, Home Affairs’ Golden Slipper feat puts him on a pedestal alongside the likes of first-season producers Extreme Choice (Stay Inside), Sidestep (Kiamichi), Stratum (Crystal Lily) and Danehill (Danzero).

Following the Mick Price and Mick Kent Jnr-trained Guest House’s Golden Slipper victory, Coolmore purchased the powerfully-built colt for $30 million.

Coolmore’s nominations and sales manager Colm Santry believes Home Affairs is the stallion the Australian industry “badly needs” with the son of I Am Invincible siring four first crop stakes winners so far.

In justifying Home Affairs’ increased service fee, who is the sire of four first crop stakes winners so far, Santry cited champion stallion Exceed And Excel whose service fee doubled in his fifth season to $110,000, Extreme Choice went from $22,000 to a private fee and more recently Ole Kirk went from $55,000 to $99,000 at the same stage of his stud career. 

“And I know Redoute’s Choice was probably a season later, but he went from $40,000 to $220,000,” Santry told The Straight.

“Home Affairs’ fee represents a 60 per cent increase on his introductory fee, which is more than fair.

“All the leading breeders in the land have exposure to him, they’ve all used him, and I think they’ll continue to use him at that fee.”

Coolmore Australia was forced to undertake an unfortunate overhaul of its stallion roster following the shock deaths last spring of its champion shuttler Wootton Bassett, who was standing for an Australian record fee of $375,000, and champion racehorse and sire So You Think.

It prompted the audacious purchase of New Zealand’s rising Waikato Stud-based sire Super Seth in February.

Indications at the time of the Magnier family-led acquisition of Super Seth suggested that he could stand for as much as $165,000, more than double his 2025 New Zealand service fee, but Coolmore has landed on a more conservative $137,500.

A Caulfield Guineas-winning son of Dundeel, who was raced by Jonathan Munz’s GSA Bloodstock, Super Seth has sired four Group 1 winners in his first two crops: Linebacker and Feroce and La Dorada and Maison Louis.

His strong start at stud led to comparisons with the champion shuttler Danehill who reshaped the Australian Stud Book throughout the 1990s and early 2000s with his current yearling crop selling up to $950,000.

Munz retained his percentage ownership in Super Seth after the sale of the stallion to Coolmore.

“Super Seth’s proven, he has done the job, he has four Group 1 winners in his first two crops, and he has three classic winners and it’s all ahead of him,” Santry said. 

“He’s got a fantastic book of mares in foal in New Zealand from last season … and he’ll go to another level again as an elite proven three-year-old sire.”

On Coolmore’s roster of 14 Australian stallions, Snitzel’s Group 1-winning sons Switzerland ($55,000) and Shinzo ($49,500) as well as Best Of Bordeaux ($11,000) have all had price reductions ahead of next season as have Pierro ($22,000) and Pride Of Dubai ($22,000).

Shuttler St Mark’s Basilica, whose eldest southern hemisphere-bred crop are two-year-olds and includes unbeaten multiple Tasmanian stakes winner Aristopolos, is returning at an unchanged fee of $38,500.

Dubawi’s dual Group 1-winning son Delacroix, Coolmore Australia’s sole first season sire in 2026 who was announced earlier this month, will also stand at the same fee.

“The response to him has been fantastic … and he’s going to get the full support of Coolmore when they (first crop) go through the ring,” Santry said.

“He’s our only first season sire this season, so he’s going to get all our focus, marketing and promoting of his foals and yearlings.”

City Of Troy, a son of Justify, will also return for his second season of shuttling duties at an unchanged fee of $49,500.

“We’re very lucky. We own a lot of these horses ourselves and we can meet the market,” Santry said.

“We don’t have outside influences. When (Coolmore owner) John Magnier wants to stand a horse at a fee, he stands at that fee, and it’s normally realistic … so breeders can make money in the sales ring.”

Coolmore Australia – 2026 stallion fees  

Home Affairs $176,000 ($82,500)

Super Seth $137,500 (NZ$75,000)

Switzerland $55,000 ($60,500)

City Of Troy $49,500 ($49,500)

Shinzo $49,500 ($55,000)

Delacroix $38,500 (new)

St Mark’s Basilica $38,500 ($38,500)

Pierro $22,000 ($33,000)

Pride Of Dubai $22,000 ($27,500)

Private Life $16,500 ($19,250)

Storm Boy $16,500 ($16,500)

Best Of Bordeaux $11,000 ($13,750)

King’s Legacy $11,000 ($16,500)

Acrobat $8,800 ($11,000)