JY
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Jeff Yass’s ProShares UltraShort NASDAQ Biotechnology BIS Stock Holding History

Jeff Yass’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
2019
Q1 		– Sell
-2,538
Closed -$467K – 8824
2018
Q4 		$467K Buy
+2,538
New +$409K ﹤0.01% 6158
2018
Q1 		– Sell
-2,063
Closed -$364K – 9312
2017
Q4 		$364K Buy
+2,063
New +$366K ﹤0.01% 7233
2016
Q1 		– Sell
-8,200
Closed -$1.88M – 8996
2015
Q4 		$1.88M Sell
8,200
-3,013
-27% -$775K ﹤0.01% 4150
2015
Q3 		$3.46M Sell
11,213
-26,000
-70% -$6.13M ﹤0.01% 3255
2015
Q2 		$8.96M Buy
37,213
+34,663
+1,359% +$8.6M ﹤0.01% 2137
2015
Q1 		$704K Buy
2,550
+1,387
+119% +$424K ﹤0.01% 6460
2014
Q4 		$428K Buy
1,163
+150
+15% +$62.5K ﹤0.01% 7519
2014
Q3 		$488K Sell
1,013
-1,002
-50% -$533K ﹤0.01% 7262
2014
Q2 		$1.15M Sell
2,015
-1,563
-44% -$1.08M ﹤0.01% 5757
2014
Q1 		$2.55M Buy
+3,578
New +$2.39M ﹤0.01% 3917

Other funds holding BIS

TRCT
Tower Research Capital (TRC) New York $4.08B AUM 58.77% 1-Year Est. Return

Jeff Yass's BIS Position: Q2 2026 in Review

Jeff Yass increased its ProShares UltraShort NASDAQ Biotechnology (BIS) stake by 35% in Q2 2026, buying an estimated $191K and bringing the position to 44,359 shares worth $603K. The position accounts for ﹤0.01% of the portfolio, ranked #9460.

Jeff Yass first reported a position in BIS in Q2 2013 and has held it in 36 quarters since. The position peaked at $3.63M in Q3 2015. 2 funds tracked by Wall St. Rank hold BIS as of Q2 2026.

  • Jeff Yass held 44,359 shares of ProShares UltraShort NASDAQ Biotechnology worth $603K as of Q2 2026.
  • Jeff Yass bought 11,385 ProShares UltraShort NASDAQ Biotechnology shares in Q2 2026, an estimated $191K.
  • ProShares UltraShort NASDAQ Biotechnology made up ﹤0.01% of Jeff Yass's portfolio in Q2 2026, its #9460 holding.
  • Jeff Yass first reported a position in ProShares UltraShort NASDAQ Biotechnology in Q2 2013 and has held it in 36 quarters since.
  • Jeff Yass's ProShares UltraShort NASDAQ Biotechnology position peaked at $3.63M in Q3 2015.
  • 2 funds tracked by Wall St. Rank held ProShares UltraShort NASDAQ Biotechnology as of Q2 2026.

Based on Susquehanna International Group's 13F filing for Q2 2026, filed 14 Aug 2026.