Jane Street’s Defiance Leveraged Long Income MSTR ETF MST Stock Holding History

Jane Street’s Portfolio MST Stock Details MST Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q3	–	Sell	-32,315	Closed	-$233K	–	13445
2026 Q2	$233K	Buy	+32,315	New	+$766K	﹤0.01%	9762
2025 Q3	–	Sell	-417	Closed	-$223K	–	12153
2025 Q2	$223K	Buy	+417	New	+$226K	﹤0.01%	8368

Other funds holding MST

Belvedere Trading Chicago, Illinois $171B AUM 106.6% 1-Year Est. Return

Simplex Trading Chicago, Illinois $184B AUM 51.71% 1-Year Est. Return

Keating Financial Advisory Services Manhattan, Kansas $775M AUM 22.27% 1-Year Est. Return

Jane Street's MST Position: Q3 2026 in Review

Jane Street sold out of Defiance Leveraged Long Income MSTR ETF (MST) in Q3 2026, closing a stake of 32,315 shares — an estimated $233K sold.

Jane Street first reported a position in MST in Q2 2025 and held it in 2 quarters. The position peaked at $233K in Q2 2026. 3 funds tracked by Wall St. Rank hold MST as of Q3 2026.

Jane Street reported no remaining Defiance Leveraged Long Income MSTR ETF position as of Q3 2026 after selling out during the quarter.
Jane Street sold 32,315 Defiance Leveraged Long Income MSTR ETF shares in Q3 2026, an estimated $233K.
Jane Street first reported a position in Defiance Leveraged Long Income MSTR ETF in Q2 2025 and held it in 2 quarters.
Jane Street's Defiance Leveraged Long Income MSTR ETF position peaked at $233K in Q2 2026.
3 funds tracked by Wall St. Rank held Defiance Leveraged Long Income MSTR ETF as of Q3 2026.

Based on Jane Street's 13F filing for Q3 2026, filed 12 Nov 2026.