State of Wisconsin Investment Board’s State Street SPDR S&P Biotech ETF XBI Stock Holding History

State of Wisconsin Investment Board’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
2026 Q2	$29.2M	Sell	184,702 -3,165	-2%	-$428K	0.06%	274
2026 Q1	$24M	Sell	187,867 -18,437	-9%	-$2.3M	0.05%	301
2025 Q4	$25.2M	Buy	+206,304	New	+$23.7M	0.06%	286
2025 Q1	–	Sell	-105,696	Closed	-$9.52M	–	2352
2024 Q4	$9.52M	Sell	105,696 -229,813	-68%	-$22.3M	0.02%	675
2024 Q3	$33.1M	Buy	+335,509	New	+$33M	0.08%	216
2024 Q1	–	Sell	-449,500	Closed	-$40.1M	–	2443
2023 Q4	$40.1M	Sell	449,500 -43,500	-9%	-$3.23M	0.11%	148
2023 Q3	$36M	Buy	493,000 +180,800	+58%	+$14.4M	0.11%	170
2023 Q2	$26M	Buy	+312,200	New	+$26.1M	0.07%	261
2017 Q2	–	Sell	-1,511,401	Closed	-$105M	–	1483
2017 Q1	$105M	Hold	1,511,401	–	–	0.4%	43
2016 Q4	$89.5M	Buy	1,511,401 +502,401	+50%	+$31M	0.39%	49
2016 Q3	$66.9M	Hold	1,009,000	–	–	0.26%	72
2016 Q2	$54.6M	Buy	1,009,000 +72,559	+8%	+$3.98M	0.22%	88
2016 Q1	$48.4M	Buy	936,441 +65,441	+8%	+$3.4M	0.19%	113
2015 Q4	$61M	Buy	871,000 +139,525	+19%	+$9.52M	0.23%	86
2015 Q3	$45.5M	Buy	731,475 +215,475	+42%	+$17M	0.18%	125
2015 Q2	$43.4M	Sell	516,000 -174,000	-25%	-$13.5M	0.15%	150
2015 Q1	$51.9M	Hold	690,000	–	–	0.18%	130
2014 Q4	$42.9M	Hold	690,000	–	–	0.15%	163
2014 Q3	$35.9M	Hold	690,000	–	–	0.13%	186
2014 Q2	$35.4M	Buy	690,000 +30,000	+5%	+$1.35M	0.13%	187
2014 Q1	$31.3M	Buy	660,000 +90,000	+16%	+$4.61M	0.12%	198
2013 Q4	$24.7M	Buy	570,000 +174,000	+44%	+$7.2M	0.1%	247
2013 Q3	$17M	Buy	396,000 +96,000	+32%	+$3.89M	0.07%	342
2013 Q2	$10.4M	Buy	+300,000	New	+$10.5M	0.04%	517

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

State of Wisconsin Investment Board's XBI Position: Q2 2026 in Review

State of Wisconsin Investment Board reduced its State Street SPDR S&P Biotech ETF (XBI) stake by 1.7% in Q2 2026, selling an estimated $428K and leaving 184,702 shares worth $29.2M. The position accounts for 0.06% of the portfolio, ranked #274.

State of Wisconsin Investment Board first reported a position in XBI in Q2 2013 and has held it in 24 quarters since. The position peaked at $105M in Q1 2017. 932 funds tracked by Wall St. Rank hold XBI as of Q2 2026.

State of Wisconsin Investment Board held 184,702 shares of State Street SPDR S&P Biotech ETF worth $29.2M as of Q2 2026.
State of Wisconsin Investment Board sold 3,165 State Street SPDR S&P Biotech ETF shares in Q2 2026, an estimated $428K.
State Street SPDR S&P Biotech ETF made up 0.06% of State of Wisconsin Investment Board's portfolio in Q2 2026, its #274 holding.
State of Wisconsin Investment Board first reported a position in State Street SPDR S&P Biotech ETF in Q2 2013 and has held it in 24 quarters since.
State of Wisconsin Investment Board's State Street SPDR S&P Biotech ETF position peaked at $105M in Q1 2017.
932 funds tracked by Wall St. Rank held State Street SPDR S&P Biotech ETF as of Q2 2026.

Based on State of Wisconsin Investment Board's 13F filing for Q2 2026, filed 14 Aug 2026.