PEAK6’s Interactive Brokers IBKR Stock Holding History

PEAK6’s Portfolio IBKR Stock Details IBKR Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	–	Sell	-592,739	Closed	-$42.3M	–	2972
2025 Q4	$38.1M	Sell	592,739 -146,834	-20%	-$9.83M	0.07%	221
2025 Q3	$50.9M	Buy	739,573 +592	+0.1%	+$37.2K	0.07%	200
2025 Q2	$40.9M	Buy	+738,981	New	+$35.1M	0.08%	215

Other funds holding IBKR

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

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

GWM

Greenwich Wealth Management Greenwich, Connecticut $2.74B AUM 36.19% 1-Year Est. Return

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

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

Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return

PEAK6's IBKR Position: Q1 2026 in Review

PEAK6 sold out of Interactive Brokers (IBKR) in Q1 2026, closing a stake of 592,739 shares — an estimated $42.3M sold.

PEAK6 first reported a position in IBKR in Q2 2025 and held it in 3 quarters. The position peaked at $50.9M in Q3 2025. 999 funds tracked by Wall St. Rank hold IBKR as of Q1 2026.

PEAK6 reported no remaining Interactive Brokers position as of Q1 2026 after selling out during the quarter.
PEAK6 sold 592,739 Interactive Brokers shares in Q1 2026, an estimated $42.3M.
PEAK6 first reported a position in Interactive Brokers in Q2 2025 and held it in 3 quarters.
PEAK6's Interactive Brokers position peaked at $50.9M in Q3 2025.
999 funds tracked by Wall St. Rank held Interactive Brokers as of Q1 2026.

Based on PEAK6's 13F filing for Q1 2026, filed 14 May 2026.