Capstone Investment Advisors’s Interactive Brokers IBKR Stock Holding History

Capstone Investment Advisors’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 Q2	$660K	Buy	+7,581	New	+$631K	﹤0.01%	1119
2026 Q1	–	Sell	-4,644	Closed	-$331K	–	1706
2025 Q4	$299K	Buy	4,644 +607	+15%	+$40.6K	﹤0.01%	1349
2025 Q3	$278K	Sell	4,037 -8,592	-68%	-$541K	﹤0.01%	1682
2025 Q2	$700K	Buy	+12,629	New	+$599K	﹤0.01%	987
2025 Q1	–	Sell	-10,540	Closed	-$466K	–	1598
2024 Q4	$466K	Buy	+10,540	New	+$444K	﹤0.01%	1339
2024 Q3	–	Sell	-19,644	Closed	-$602K	–	2052
2024 Q2	$602K	Buy	+19,644	New	+$586K	﹤0.01%	1216
2021 Q3	–	Sell	-284,988	Closed	-$4.68M	–	2032
2021 Q2	$4.68M	Buy	+284,988	New	+$4.93M	0.01%	738
2017 Q2	–	Sell	-40,000	Closed	-$347K	–	770
2017 Q1	$347K	Sell	40,000 -8,776	-18%	-$81.7K	0.01%	678
2016 Q4	$445K	Buy	+48,776	New	+$444K	0.01%	609

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 $3.38T AUM 44.17% 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

Capstone Investment Advisors's IBKR Position: Q2 2026 in Review

Capstone Investment Advisors opened a new position in Interactive Brokers (IBKR) in Q2 2026: 7,581 shares worth $660K. The stake represents ﹤0.01% of the portfolio and ranks #1119 among its holdings. This is a return to the name: Capstone Investment Advisors previously reported a position in IBKR as recently as Q4 2025.

Capstone Investment Advisors first reported a position in IBKR in Q4 2016 and has held it in 9 quarters since. The position peaked at $4.68M in Q2 2021. 1,118 funds tracked by Wall St. Rank hold IBKR as of Q2 2026.

Capstone Investment Advisors held 7,581 shares of Interactive Brokers worth $660K as of Q2 2026.
Interactive Brokers was a new Capstone Investment Advisors position in Q2 2026.
Interactive Brokers made up ﹤0.01% of Capstone Investment Advisors's portfolio in Q2 2026, its #1119 holding.
Capstone Investment Advisors first reported a position in Interactive Brokers in Q4 2016 and has held it in 9 quarters since.
Capstone Investment Advisors's Interactive Brokers position peaked at $4.68M in Q2 2021.
1,118 funds tracked by Wall St. Rank held Interactive Brokers as of Q2 2026.

Based on Capstone Investment Advisors's 13F filing for Q2 2026, filed 17 Aug 2026.