Jane Street’s Calamos Bitcoin Structured Alt Protection ETF - January CBOJ Stock Holding History

Jane Street’s Portfolio CBOJ Stock Details CBOJ Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$310K	Buy	+13,179	New	+$310K	﹤0.01%	9150
2025 Q4	–	Sell	-7,818	Closed	-$204K	–	12784
2025 Q3	$204K	Buy	+7,818	New	+$203K	﹤0.01%	9651
2025 Q2	–	Sell	-18,245	Closed	-$452K	–	11290
2025 Q1	$452K	Buy	+18,245	New	+$454K	﹤0.01%	7067

Other funds holding CBOJ

Susquehanna International Group Bala Cynwyd, Pennsylvania $1.28T AUM 58.89% 1-Year Est. Return

Harbour Investments Madison, Wisconsin $7.43B AUM 24.49% 1-Year Est. Return

Evexia Wealth Stevens Point, Wisconsin $369M AUM 26.67% 1-Year Est. Return

Calamos Advisors Naperville, Illinois $30.1B AUM 30.03% 1-Year Est. Return

AFP

Advus Financial Partners Winter Park, Florida $441M AUM 26.99% 1-Year Est. Return

MAM

Markin Asset Management Rye, New York $117M AUM

PFG Advisors Phoenix, Arizona $1.98B AUM 28.18% 1-Year Est. Return

AFP

ATX Financial Planning Austin, Texas $151M AUM

SPC

Sigma Planning Corp Ann Arbor, Michigan $3.97B AUM 32.34% 1-Year Est. Return

Ankerstar Wealth Leander, Texas $119M AUM

Jane Street's CBOJ Position: Q2 2026 in Review

Jane Street opened a new position in Calamos Bitcoin Structured Alt Protection ETF - January (CBOJ) in Q2 2026: 13,179 shares worth $310K. The stake represents ﹤0.01% of the portfolio and ranks #9150 among its holdings. This is a return to the name: Jane Street previously reported a position in CBOJ as recently as Q3 2025.

Jane Street first reported a position in CBOJ in Q1 2025 and has held it in 3 quarters since. The position peaked at $452K in Q1 2025. 16 funds tracked by Wall St. Rank hold CBOJ as of Q2 2026.

Jane Street held 13,179 shares of Calamos Bitcoin Structured Alt Protection ETF - January worth $310K as of Q2 2026.
Calamos Bitcoin Structured Alt Protection ETF - January was a new Jane Street position in Q2 2026.
Calamos Bitcoin Structured Alt Protection ETF - January made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #9150 holding.
Jane Street first reported a position in Calamos Bitcoin Structured Alt Protection ETF - January in Q1 2025 and has held it in 3 quarters since.
Jane Street's Calamos Bitcoin Structured Alt Protection ETF - January position peaked at $452K in Q1 2025.
16 funds tracked by Wall St. Rank held Calamos Bitcoin Structured Alt Protection ETF - January as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.