Keeneland's 2026 September Yearling Sale generated a worldwide-record $536.7 million in through-the-ring gross sales, roughly $26 million above the previous record set at Keeneland one year earlier. The 12-session auction, held Sept. 14–26 in Lexington, Kentucky, saw 2,856 yearlings change hands, with 70 selling for at least $1 million, up from 56 the previous year. The average price rose 6.87% to $187,933, marking the sixth consecutive record cumulative average, while the median increased 6.25% to a third consecutive record of $85,000. Including post-sale transactions reported to date, gross sales reached $558.3 million. Tax incentives under the One Big Beautiful Bill Act, including permanent 100% bonus depreciation, supported demand by allowing buyers to deduct the full purchase price against taxable income in the acquisition year. Keeneland President and CEO Shannon Arvin also cited higher racing purses and strong international attendance. Buyers from 30 countries participated, with international purchasers accounting for roughly a quarter of yearlings sold. The top lot was a dark bay colt by Into Mischief that sold for $3.7 million.