Twin Tree Management’s State Street SPDR S&P Biotech ETF XBI Stock Holding History

Twin Tree Management’s Portfolio XBI Stock Details XBI Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q3	–	Sell	-165,200	Closed	-$13.7M	–	1886
2025 Q2	$13.7M	Buy	+165,200	New	+$13.2M	0.03%	641
2025 Q1	–	Sell	-89,800	Closed	-$8.09M	–	1985
2024 Q4	$8.09M	Sell	89,800 -70,500	-44%	-$6.83M	0.01%	770
2024 Q3	$15.8M	Sell	160,300 -16,400	-9%	-$1.61M	0.03%	497
2024 Q2	$16.4M	Sell	176,700 -328,300	-65%	-$29.4M	0.04%	430
2024 Q1	$47.9M	Buy	+505,000	New	+$46.9M	0.11%	189
2022 Q2	–	Sell	-842,900	Closed	-$75.8M	–	1897
2022 Q1	$75.8M	Buy	842,900 +652,500	+343%	+$60.3M	0.12%	123
2021 Q4	$21.3M	Sell	190,400 -690,600	-78%	-$83.3M	0.04%	391
2021 Q3	$111M	Buy	881,000 +547,100	+164%	+$70.5M	0.24%	65
2021 Q2	$45.2M	Buy	+333,900	New	+$43.9M	0.12%	177
2021 Q1	–	Sell	-64,000	Closed	-$9.01M	–	1648
2020 Q4	$9.01M	Sell	64,000 -193,900	-75%	-$24.8M	0.04%	471
2020 Q3	$28.7M	Sell	257,900 -237,800	-48%	-$26.7M	0.12%	189
2020 Q2	$55.5M	Buy	+495,700	New	+$48.8M	0.23%	94
2020 Q1	–	Sell	-1,161,700	Closed	-$110M	–	1658
2019 Q4	$110M	Sell	1,161,700 -2,344,500	-67%	-$203M	0.38%	43
2019 Q3	$267M	Buy	3,506,200 +704,400	+25%	+$58.5M	1.06%	9
2019 Q2	$246M	Buy	2,801,800 +590,000	+27%	+$50.3M	1.2%	7
2019 Q1	$200M	Buy	2,211,800 +541,700	+32%	+$46.1M	1.04%	11
2018 Q4	$120M	Buy	1,670,100 +959,500	+135%	+$77.3M	0.75%	11
2018 Q3	$68.1M	Buy	710,600 +36,000	+5%	+$3.49M	0.46%	25
2018 Q2	$64.2M	Buy	674,600 +448,500	+198%	+$41.2M	0.39%	35
2018 Q1	$19.8M	Buy	226,100 +86,700	+62%	+$7.92M	0.16%	109
2017 Q4	$11.8M	Sell	139,400 -255,400	-65%	-$21.4M	0.09%	200
2017 Q3	$34.2M	Buy	394,800 +147,500	+60%	+$11.8M	0.27%	70
2017 Q2	$19.1M	Buy	247,300 +52,200	+27%	+$3.7M	0.15%	139
2017 Q1	$13.5M	Buy	+195,100	New	+$13.1M	0.12%	165

Other funds holding XBI

BNP Paribas Financial Markets Paris, France $289B AUM 60.46% 1-Year Est. Return

Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

Citigroup New York $303B AUM 53.02% 1-Year Est. Return

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return

Healthcare of Ontario Pension Plan (HOOPP) Trust Fund Toronto, Ontario, Canada $71.2B AUM 48.86% 1-Year Est. Return

Wells Fargo San Francisco, California $617B AUM 30.33% 1-Year Est. Return

UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return

Barclays London, United Kingdom $521B AUM 51.41% 1-Year Est. Return

JFG

Jefferies Financial Group New York $15.2B AUM 55.75% 1-Year Est. Return

Twin Tree Management's XBI Position: Q2 2026 in Review

Twin Tree Management reduced its State Street SPDR S&P Biotech ETF (XBI) stake by 48% in Q2 2026, selling an estimated $2.98M and leaving 24,074 shares worth $3.81M. The position accounts for 0.07% of the portfolio, ranked #356.

Twin Tree Management first reported a position in XBI in Q4 2017 and has held it in 21 quarters since. The position peaked at $76.7M in Q4 2023. 933 funds tracked by Wall St. Rank hold XBI as of Q2 2026.

Twin Tree Management held 24,074 shares of State Street SPDR S&P Biotech ETF worth $3.81M as of Q2 2026.
Twin Tree Management sold 22,077 State Street SPDR S&P Biotech ETF shares in Q2 2026, an estimated $2.98M.
State Street SPDR S&P Biotech ETF made up 0.07% of Twin Tree Management's portfolio in Q2 2026, its #356 holding.
Twin Tree Management first reported a position in State Street SPDR S&P Biotech ETF in Q4 2017 and has held it in 21 quarters since.
Twin Tree Management's State Street SPDR S&P Biotech ETF position peaked at $76.7M in Q4 2023.
933 funds tracked by Wall St. Rank held State Street SPDR S&P Biotech ETF as of Q2 2026.

Based on Twin Tree Management's 13F filing for Q2 2026, filed 12 Aug 2026.