Jim Simons
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Jim Simons’s ProShares Trust UltraShort Lehman 20+ Year Treasury TBT Stock Holding History

Jim Simons’s Portfolio TBT Stock Details TBT Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$2.26M Buy
64,400
+19,700
+44% +$676K ﹤0.01% 1836
2025
Q4 		$1.56M Sell
44,700
-170,200
-79% -$5.72M ﹤0.01% 2031
2025
Q3 		$7.26M Buy
214,900
+120,600
+128% +$4.29M 0.01% 1264
2025
Q2 		$3.31M Sell
94,300
-103,000
-52% -$3.73M ﹤0.01% 1778
2025
Q1 		$6.64M Buy
197,300
+134,100
+212% +$4.75M 0.01% 1247
2024
Q4 		$2.31M Sell
63,200
-92,700
-59% -$3.12M ﹤0.01% 1965
2024
Q3 		$4.64M Buy
155,900
+124,000
+389% +$3.87M 0.01% 1487
2024
Q2 		$1.1M Sell
31,900
-91,012
-74% -$3.23M ﹤0.01% 2268
2024
Q1 		$4.05M Sell
122,912
-36,388
-23% -$1.21M 0.01% 1546
2023
Q4 		$4.81M Buy
159,300
+54,500
+52% +$2.04M 0.01% 1375
2023
Q3 		$4.11M Buy
104,800
+12,100
+13% +$408K 0.01% 1417
2023
Q2 		$2.73M Buy
+92,700
New +$2.71M ﹤0.01% 1806
2022
Q4 		– Sell
-162,400
Closed -$5.17M – 4408
2022
Q3 		$5.17M Buy
162,400
+115,200
+244% +$3.1M 0.01% 1420
2022
Q2 		$1.23M Buy
+47,200
New +$1.2M ﹤0.01% 2570
2020
Q3 		– Sell
-27,300
Closed -$434K – 3679
2020
Q2 		$434K Buy
+27,300
New +$437K ﹤0.01% 2922
2019
Q3 		– Sell
-188,680
Closed -$5.46M – 3695
2019
Q2 		$5.46M Buy
188,680
+158,780
+531% +$5.07M ﹤0.01% 1768
2019
Q1 		$965K Sell
29,900
-123,400
-80% -$4.32M ﹤0.01% 2685
2018
Q4 		$5.38M Buy
+153,300
New +$5.99M 0.01% 1680
2018
Q2 		– Sell
-14,600
Closed -$530K – 3525
2018
Q1 		$530K Buy
+14,600
New +$542K ﹤0.01% 2897

Other funds holding TBT

CM
CastleKnight Management New York $6B AUM 121.87% 1-Year Est. Return
Susquehanna International Group
Susquehanna International Group Bala Cynwyd, Pennsylvania $893B AUM 36.07% 1-Year Est. Return
Mariner
Mariner Overland Park, Kansas $85.7B AUM 24.21% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return
JSSH
J. Safra Sarasin Holding $6.97B AUM 32.91% 1-Year Est. Return
Jane Street
Jane Street New York $777B AUM 61.18% 1-Year Est. Return
JFG
Jefferies Financial Group New York $14.6B AUM 40.95% 1-Year Est. Return
VCM
Virtue Capital Management Brentwood, Tennessee $749M AUM 40.13% 1-Year Est. Return
VAM
Verity Asset Management Durham, North Carolina $238M AUM 24.8% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return

Jim Simons's TBT Position: Q1 2026 in Review

Jim Simons increased its ProShares Trust UltraShort Lehman 20+ Year Treasury (TBT) stake by 44% in Q1 2026, buying an estimated $676K and bringing the position to 64,400 shares worth $2.26M. The position accounts for ﹤0.01% of the portfolio, ranked #1836.

Jim Simons first reported a position in TBT in Q1 2018 and has held it in 19 quarters since. The position peaked at $7.26M in Q3 2025. 50 funds tracked by Wall St. Rank hold TBT as of Q1 2026.

  • Jim Simons held 64,400 shares of ProShares Trust UltraShort Lehman 20+ Year Treasury worth $2.26M as of Q1 2026.
  • Jim Simons bought 19,700 ProShares Trust UltraShort Lehman 20+ Year Treasury shares in Q1 2026, an estimated $676K.
  • ProShares Trust UltraShort Lehman 20+ Year Treasury made up ﹤0.01% of Jim Simons's portfolio in Q1 2026, its #1836 holding.
  • Jim Simons first reported a position in ProShares Trust UltraShort Lehman 20+ Year Treasury in Q1 2018 and has held it in 19 quarters since.
  • Jim Simons's ProShares Trust UltraShort Lehman 20+ Year Treasury position peaked at $7.26M in Q3 2025.
  • 50 funds tracked by Wall St. Rank held ProShares Trust UltraShort Lehman 20+ Year Treasury as of Q1 2026.

Based on Renaissance Technologies's 13F filing for Q1 2026, filed 14 May 2026.