Jane Street
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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
2025
Q4 		– Sell
-11,800
Closed -$312K – 12269
2025
Q3 		$312K Sell
11,800
-200
-2% -$5.53K ﹤0.01% 8822
2025
Q2 		$337K Buy
12,000
+2,900
+32% +$93.1K ﹤0.01% 7654
2025
Q1 		$298K Sell
9,100
-16,000
-64% -$525K ﹤0.01% 7813
2024
Q4 		$883K Buy
+25,100
New +$901K ﹤0.01% 5618
2020
Q2 		– Sell
-1,000
Closed -$313K – 7542
2020
Q1 		$313K Buy
1,000
+275
+38% +$70.8K ﹤0.01% 4152
2019
Q4 		$159K Buy
+725
New +$174K ﹤0.01% 4780
2019
Q1 		– Sell
-7,050
Closed -$2.74M – 5576
2018
Q4 		$2.74M Buy
+7,050
New +$2.42M 0.01% 1407
2018
Q1 		– Sell
-769
Closed -$257K – 5342
2017
Q4 		$257K Buy
+769
New +$275K ﹤0.01% 3925
2017
Q3 		– Sell
-4,094
Closed -$1.73M – 4998
2017
Q2 		$1.73M Buy
+4,094
New +$1.85M 0.01% 1634
2014
Q2 		– Sell
-781
Closed -$818K – 3064
2014
Q1 		$818K Buy
+781
New +$869K 0.01% 1133

Other funds holding SKF

Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Citadel Advisors
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
Simplex Trading Chicago, Illinois $149B AUM 62.07% 1-Year Est. Return
UBS Group
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.