Jane Street’s ProShares Ultra Nasdaq Cybersecurity ETF UCYB Stock Holding History

Jane Street’s Portfolio UCYB Stock Details UCYB Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	–	Sell	-4,497	Closed	-$237K	–	13034
2025 Q4	$237K	Buy	4,497 +147	+3%	+$8.64K	﹤0.01%	9360
2025 Q3	$267K	Sell	4,350 -492	-10%	-$28.9K	﹤0.01%	9138
2025 Q2	$302K	Buy	+4,842	New	+$253K	﹤0.01%	7856
2022 Q2	–	Sell	-5,421	Closed	-$273K	–	10927
2022 Q1	$273K	Buy	+5,421	New	+$238K	﹤0.01%	8537

Other funds holding UCYB

Susquehanna International Group Bala Cynwyd, Pennsylvania $893B AUM 36.07% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Jane Street's UCYB Position: Q1 2026 in Review

Jane Street sold out of ProShares Ultra Nasdaq Cybersecurity ETF (UCYB) in Q1 2026, closing a stake of 4,497 shares — an estimated $237K sold.

Jane Street first reported a position in UCYB in Q1 2022 and held it in 4 quarters. The position peaked at $302K in Q2 2025. 2 funds tracked by Wall St. Rank hold UCYB as of Q1 2026.

Jane Street reported no remaining ProShares Ultra Nasdaq Cybersecurity ETF position as of Q1 2026 after selling out during the quarter.
Jane Street sold 4,497 ProShares Ultra Nasdaq Cybersecurity ETF shares in Q1 2026, an estimated $237K.
Jane Street first reported a position in ProShares Ultra Nasdaq Cybersecurity ETF in Q1 2022 and held it in 4 quarters.
Jane Street's ProShares Ultra Nasdaq Cybersecurity ETF position peaked at $302K in Q2 2025.
2 funds tracked by Wall St. Rank held ProShares Ultra Nasdaq Cybersecurity ETF as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.