PEAK6’s CarMax KMX Stock Holding History

PEAK6’s Portfolio KMX Stock Details KMX Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	–	Sell	-100	Closed	-$3.86K	–	3017
2025 Q4	$3.86K	Buy	+100	New	+$4K	﹤0.01%	2684
2025 Q3	–	Sell	-8,300	Closed	-$558K	–	3214
2025 Q2	$558K	Sell	8,300 -18,200	-69%	-$1.22M	﹤0.01%	2073
2025 Q1	$2.06M	Sell	26,500 -21,800	-45%	-$1.75M	﹤0.01%	1403
2024 Q4	$3.95M	Buy	+48,300	New	+$3.79M	0.01%	1038

Other funds holding KMX

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

SIM

SRS Investment Management New York $10.8B AUM 34.05% 1-Year Est. Return

Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return

State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Jupiter Topco New York $245B AUM

Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return

PEAK6's KMX Position: Q2 2026 in Review

PEAK6 increased its CarMax (KMX) stake by 396% in Q2 2026, buying an estimated $62.2K and bringing the position to 1,791 shares worth $94.7K. The position accounts for ﹤0.01% of the portfolio, ranked #2415.

PEAK6 first reported a position in KMX in Q4 2024 and has held it in 7 quarters since. The position peaked at $3.78M in Q3 2025. 557 funds tracked by Wall St. Rank hold KMX as of Q2 2026.

PEAK6 held 1,791 shares of CarMax worth $94.7K as of Q2 2026.
PEAK6 bought 1,430 CarMax shares in Q2 2026, an estimated $62.2K.
CarMax made up ﹤0.01% of PEAK6's portfolio in Q2 2026, its #2415 holding.
PEAK6 first reported a position in CarMax in Q4 2024 and has held it in 7 quarters since.
PEAK6's CarMax position peaked at $3.78M in Q3 2025.
557 funds tracked by Wall St. Rank held CarMax as of Q2 2026.

Based on PEAK6's 13F filing for Q2 2026, filed 13 Aug 2026.