Jane Street’s ProShares UltraShort Financials SKF Stock Holding History

Jane Street’s Portfolio SKF Stock Details SKF Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2019 Q3	–	Sell	-713	Closed	-$194K	–	5684
2019 Q2	$194K	Sell	713 -1,156	-62%	-$331K	﹤0.01%	4701
2019 Q1	$582K	Buy	1,869 +213	+13%	+$69.3K	﹤0.01%	3495
2018 Q4	$644K	Buy	+1,656	New	+$570K	﹤0.01%	3144

Other funds holding SKF

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

Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return

TRCT

Tower Research Capital (TRC) New York $3.85B AUM 32.11% 1-Year Est. Return

Simplex Trading Chicago, Illinois $149B AUM 62.07% 1-Year Est. Return

UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return

JEST

JTC Employer Solutions Trustee St Helier, Jersey $1.2B AUM 37.55% 1-Year Est. Return

Jane Street's SKF Position: Q4 2024 in Review

Jane Street sold out of ProShares UltraShort Financials (SKF) in Q4 2024, closing a stake of 6,419 shares — an estimated $230K sold.

Jane Street first reported a position in SKF in Q1 2017 and held it in 10 quarters. The position peaked at $947K in Q4 2017. 7 funds tracked by Wall St. Rank hold SKF as of Q4 2024.

Jane Street reported no remaining ProShares UltraShort Financials position as of Q4 2024 after selling out during the quarter.
Jane Street sold 6,419 ProShares UltraShort Financials shares in Q4 2024, an estimated $230K.
Jane Street first reported a position in ProShares UltraShort Financials in Q1 2017 and held it in 10 quarters.
Jane Street's ProShares UltraShort Financials position peaked at $947K in Q4 2017.
7 funds tracked by Wall St. Rank held ProShares UltraShort Financials as of Q4 2024.

Based on Jane Street's 13F filing for Q4 2024, filed 14 Feb 2025.