Jane Street’s ProShares Trust UltraShort Lehman 20+ Year Treasury TBT Stock Holding History

Jane Street’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	$1.26M	Sell	35,900 -97,000	-73%	-$3.33M	﹤0.01%	6012
2025 Q4	$4.64M	Sell	132,900 -4,600	-3%	-$154K	﹤0.01%	3346
2025 Q3	$4.64M	Sell	137,500 -20,800	-13%	-$739K	﹤0.01%	3526
2025 Q2	$5.55M	Buy	158,300 +20,700	+15%	+$750K	﹤0.01%	2858
2025 Q1	$4.63M	Sell	137,600 -66,600	-33%	-$2.36M	﹤0.01%	3047
2024 Q4	$7.48M	Buy	204,200 +92,100	+82%	+$3.1M	﹤0.01%	2177
2024 Q3	$3.34M	Buy	+112,100	New	+$3.5M	﹤0.01%	3528
2022 Q2	–	Sell	-2,325,200	Closed	-$47.6M	–	10849
2022 Q1	$47.6M	Sell	2,325,200 -2,535,000	-52%	-$48.7M	0.02%	703
2021 Q4	$82.1M	Sell	4,860,200 -125,100	-3%	-$2.17M	0.03%	438
2021 Q3	$91.5M	Sell	4,985,300 -269,000	-5%	-$4.72M	0.03%	368
2021 Q2	$98.9M	Buy	5,254,300 +399,100	+8%	+$8.12M	0.04%	321
2021 Q1	$106M	Buy	4,855,200 +3,082,400	+174%	+$59.7M	0.05%	253
2020 Q4	$29.1M	Buy	1,772,800 +435,700	+33%	+$7.15M	0.01%	663
2020 Q3	$21M	Buy	1,337,100 +996,200	+292%	+$15.3M	0.01%	756
2020 Q2	$5.42M	Buy	340,900 +293,700	+622%	+$4.7M	﹤0.01%	1760
2020 Q1	$759K	Sell	47,200 -1,274,700	-96%	-$27.6M	﹤0.01%	3137
2019 Q4	$35.1M	Buy	1,321,900 +865,300	+190%	+$22.1M	0.05%	242
2019 Q3	$11.1M	Sell	456,600 -116,300	-20%	-$3.06M	0.02%	552
2019 Q2	$16.6M	Sell	572,900 -179,600	-24%	-$5.73M	0.03%	429
2019 Q1	$24.3M	Buy	752,500 +211,400	+39%	+$7.4M	0.04%	356
2018 Q4	$19M	Buy	541,100 +214,800	+66%	+$8.4M	0.04%	342
2018 Q3	$12.5M	Sell	326,300 -973,500	-75%	-$35.8M	0.02%	483
2018 Q2	$46.7M	Sell	1,299,800 -424,200	-25%	-$15.9M	0.11%	135
2018 Q1	$62.5M	Buy	1,724,000 +477,800	+38%	+$17.8M	0.16%	100
2017 Q4	$42.1M	Buy	1,246,200 +762,200	+157%	+$26.6M	0.12%	148
2017 Q3	$17.2M	Buy	484,000 +171,300	+55%	+$6.04M	0.06%	307
2017 Q2	$11.2M	Sell	312,700 -295,400	-49%	-$10.9M	0.04%	411
2017 Q1	$23.8M	Sell	608,100 -362,900	-37%	-$14.5M	0.11%	163
2016 Q4	$39.6M	Buy	971,000 +183,700	+23%	+$6.94M	0.17%	97
2016 Q3	$24.9M	Buy	787,300 +545,300	+225%	+$17.1M	0.12%	156
2016 Q2	$7.67M	Sell	242,000 -436,400	-64%	-$15.6M	0.04%	429
2016 Q1	$25M	Sell	678,400 -50,100	-7%	-$1.94M	0.14%	132
2015 Q4	$32.1M	Buy	728,500 +22,100	+3%	+$970K	0.2%	91
2015 Q3	$30.6M	Buy	706,400 +242,100	+52%	+$11.1M	0.19%	93
2015 Q2	$23.1M	Buy	464,300 +28,600	+7%	+$1.34M	0.15%	92
2015 Q1	$18.2M	Sell	435,700 -942,800	-68%	-$40.2M	0.14%	121
2014 Q4	$63.9M	Buy	1,378,500 +1,102,500	+399%	+$56.2M	0.48%	32
2014 Q3	$15.5M	Sell	276,000 -52,500	-16%	-$3.06M	0.16%	106
2014 Q2	$19.9M	Buy	328,500 +203,700	+163%	+$13M	0.25%	73
2014 Q1	$8.43M	Sell	124,800 -182,300	-59%	-$13M	0.09%	159
2013 Q4	$24.3M	Sell	307,100 -250,250	-45%	-$19.1M	0.35%	51
2013 Q3	$42M	Buy	557,350 +328,725	+144%	+$25.3M	0.5%	33
2013 Q2	$16.6M	Buy	+228,625	New	+$14.9M	0.28%	48

Other funds holding TBT

CastleKnight Management New York $6B AUM 121.87% 1-Year Est. Return

Susquehanna International Group Bala Cynwyd, Pennsylvania $893B AUM 36.07% 1-Year Est. Return

Mariner Overland Park, Kansas $85.7B AUM 24.21% 1-Year Est. Return

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

JSSH

J. Safra Sarasin Holding $5.87B AUM 24.95% 1-Year Est. Return

Renaissance Technologies New York $63.9B AUM 45.56% 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 $657M AUM 24.18% 1-Year Est. Return

VAM

Verity Asset Management Durham, North Carolina $238M AUM 24.8% 1-Year Est. Return

Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return

Jane Street's TBT Position: Q1 2026 in Review

Jane Street increased its ProShares Trust UltraShort Lehman 20+ Year Treasury (TBT) stake by 77% in Q1 2026, buying an estimated $1.04M and bringing the position to 69,842 shares worth $2.45M. The position accounts for ﹤0.01% of the portfolio, ranked #4706.

Jane Street first reported a position in TBT in Q2 2013 and has held it in 45 quarters since. The position peaked at $201M in Q3 2023. 50 funds tracked by Wall St. Rank hold TBT as of Q1 2026.

Jane Street held 69,842 shares of ProShares Trust UltraShort Lehman 20+ Year Treasury worth $2.45M as of Q1 2026.
Jane Street bought 30,340 ProShares Trust UltraShort Lehman 20+ Year Treasury shares in Q1 2026, an estimated $1.04M.
ProShares Trust UltraShort Lehman 20+ Year Treasury made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #4706 holding.
Jane Street first reported a position in ProShares Trust UltraShort Lehman 20+ Year Treasury in Q2 2013 and has held it in 45 quarters since.
Jane Street's ProShares Trust UltraShort Lehman 20+ Year Treasury position peaked at $201M in Q3 2023.
50 funds tracked by Wall St. Rank held ProShares Trust UltraShort Lehman 20+ Year Treasury as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.