Magnetar Financial’s Capital One COF Stock Holding History

Magnetar Financial’s Portfolio COF Stock Details COF Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	–	Sell	-17,524	Closed	-$4.25M	–	1195
2025 Q4	$4.25M	Sell	17,524 -3,228	-16%	-$719K	0.04%	213
2025 Q3	$4.41M	Buy	+20,752	New	+$4.54M	0.03%	248
2022 Q1	–	Sell	-14,355	Closed	-$2.08M	–	1368
2021 Q4	$2.08M	Buy	14,355 +3,019	+27%	+$466K	0.02%	661
2021 Q3	$1.84M	Buy	+11,336	New	+$1.85M	0.02%	609
2019 Q4	–	Sell	-7,896	Closed	-$718K	–	547
2019 Q3	$718K	Buy	+7,896	New	+$710K	0.02%	294
2018 Q4	–	Sell	-2,128	Closed	-$202K	–	332
2018 Q3	$202K	Buy	+2,128	New	+$207K	﹤0.01%	459
2018 Q2	–	Sell	-2,576	Closed	-$247K	–	529
2018 Q1	$247K	Buy	+2,576	New	+$256K	﹤0.01%	493
2017 Q3	–	Sell	-8,983	Closed	-$742K	–	752
2017 Q2	$742K	Buy	8,983 +2,207	+33%	+$179K	0.01%	431
2017 Q1	$587K	Buy	+6,776	New	+$604K	0.01%	441
2016 Q4	–	Sell	-6,195	Closed	-$445K	–	95
2016 Q3	$445K	Buy	+6,195	New	+$425K	0.01%	393

Other funds holding COF

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return

JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Franklin Resources San Mateo, California $408B AUM 30.18% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Harris Associates Chicago, Illinois $75B AUM 11.27% 1-Year Est. Return

Magnetar Financial's COF Position: Q1 2026 in Review

Magnetar Financial sold out of Capital One (COF) in Q1 2026, closing a stake of 17,524 shares — an estimated $4.25M sold.

Magnetar Financial first reported a position in COF in Q3 2016 and held it in 10 quarters. The position peaked at $4.41M in Q3 2025. 2,063 funds tracked by Wall St. Rank hold COF as of Q1 2026.

Magnetar Financial reported no remaining Capital One position as of Q1 2026 after selling out during the quarter.
Magnetar Financial sold 17,524 Capital One shares in Q1 2026, an estimated $4.25M.
Magnetar Financial first reported a position in Capital One in Q3 2016 and held it in 10 quarters.
Magnetar Financial's Capital One position peaked at $4.41M in Q3 2025.
2,063 funds tracked by Wall St. Rank held Capital One as of Q1 2026.

Based on Magnetar Financial's 13F filing for Q1 2026, filed 13 May 2026.