Jane Street
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Jane Street’s ProShares UltraShort NASDAQ Biotechnology BIS Stock Holding History

Jane Street’s Portfolio BIS Stock Details BIS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2017
Q2 		– Sell
-2,150
Closed -$478K – 4319
2017
Q1 		$478K Buy
+2,150
New +$507K ﹤0.01% 2932
2016
Q4 		– Sell
-2,050
Closed -$519K – 4022
2016
Q3 		$519K Sell
2,050
-60,988
-97% -$16.2M ﹤0.01% 2729
2016
Q2 		$21M Sell
63,038
-75,262
-54% -$23.8M 0.1% 179
2016
Q1 		$48.2M Buy
138,300
+114,275
+476% +$39.8M 0.27% 65
2015
Q4 		$5.52M Sell
24,025
-13,050
-35% -$3.36M 0.03% 449
2015
Q3 		$11.4M Buy
+37,075
New +$8.75M 0.07% 229
2015
Q2 		– Sell
-1,655
Closed -$457K – 3618
2015
Q1 		$457K Sell
1,655
-2,645
-62% -$809K ﹤0.01% 2134
2014
Q4 		$1.58M Buy
4,300
+1,600
+59% +$667K 0.01% 785
2014
Q3 		$1.3M Buy
+2,700
New +$1.44M 0.01% 789
2014
Q2 		– Sell
-295
Closed -$210K – 2554
2014
Q1 		$210K Buy
+295
New +$197K ﹤0.01% 2324

Other funds holding BIS

Susquehanna International Group
Susquehanna International Group Bala Cynwyd, Pennsylvania $893B AUM 36.07% 1-Year Est. Return
TRCT
Tower Research Capital (TRC) New York $3.85B AUM 32.11% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return

Jane Street's BIS Position: Q1 2025 in Review

Jane Street sold out of ProShares UltraShort NASDAQ Biotechnology (BIS) in Q1 2025, closing a stake of 19,348 shares — an estimated $704K sold.

Jane Street first reported a position in BIS in Q2 2013 and held it in 15 quarters. The position peaked at $979K in Q4 2018. 4 funds tracked by Wall St. Rank hold BIS as of Q1 2025.

  • Jane Street reported no remaining ProShares UltraShort NASDAQ Biotechnology position as of Q1 2025 after selling out during the quarter.
  • Jane Street sold 19,348 ProShares UltraShort NASDAQ Biotechnology shares in Q1 2025, an estimated $704K.
  • Jane Street first reported a position in ProShares UltraShort NASDAQ Biotechnology in Q2 2013 and held it in 15 quarters.
  • Jane Street's ProShares UltraShort NASDAQ Biotechnology position peaked at $979K in Q4 2018.
  • 4 funds tracked by Wall St. Rank held ProShares UltraShort NASDAQ Biotechnology as of Q1 2025.

Based on Jane Street's 13F filing for Q1 2025, filed 14 May 2025.