State of Wisconsin Investment Board’s iShares Core 1-5 Year USD Bond ETF ISTB Stock Holding History

State of Wisconsin Investment Board’s Portfolio ISTB Stock Details ISTB Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$268M	Buy	5,549,725 +134,700	+2%	+$6.51M	0.54%	27
2026 Q1	$262M	Buy	5,415,025 +102,400	+2%	+$4.99M	0.6%	22
2025 Q4	$259M	Buy	5,312,625 +71,400	+1%	+$3.48M	0.58%	20
2025 Q3	$256M	Buy	5,241,225 +112,600	+2%	+$5.48M	0.59%	20
2025 Q2	$250M	Buy	5,128,625 +82,700	+2%	+$3.99M	0.61%	21
2025 Q1	$244M	Buy	5,045,925 +300	+0%	+$14.4K	0.63%	22
2024 Q4	$241M	Buy	5,045,625 +205,300	+4%	+$9.85M	0.61%	21
2024 Q3	$236M	Hold	4,840,325	–	–	0.59%	22
2024 Q2	$229M	Buy	4,840,325 +74,000	+2%	+$3.49M	0.61%	18
2024 Q1	$226M	Buy	4,766,325 +222,125	+5%	+$10.5M	0.6%	22
2023 Q4	$216M	Hold	4,544,200	–	–	0.61%	21
2023 Q3	$211M	Hold	4,544,200	–	–	0.66%	18
2023 Q2	$212M	Hold	4,544,200	–	–	0.6%	20
2023 Q1	$214M	Hold	4,544,200	–	–	0.64%	19
2022 Q4	$211M	Hold	4,544,200	–	–	0.68%	14
2022 Q3	$209M	Buy	4,544,200 +1,064,200	+31%	+$50.2M	0.67%	14
2022 Q2	$165M	Buy	+3,480,000	New	+$166M	0.43%	33

Other funds holding ISTB

Acorns Advisers Irvine, California $15.3B AUM 18.32% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Charles Schwab San Francisco, California $751B AUM 38.74% 1-Year Est. Return

TWP

Triad Wealth Partners Lawrence, Kansas $1.7B AUM 21.07% 1-Year Est. Return

Raymond James Financial St Petersburg, Florida $369B AUM 28.27% 1-Year Est. Return

Jones Financial Companies Des Peres, Missouri $250B AUM 21.32% 1-Year Est. Return

Mariner Overland Park, Kansas $95.2B AUM 32.92% 1-Year Est. Return

Spinnaker Trust Portland, Maine $2.06B AUM 24.94% 1-Year Est. Return

Townsend & Associates Westminster, Colorado $1.17B AUM 20.72% 1-Year Est. Return

CWM

Cahaba Wealth Management Atlanta, Georgia $1.66B AUM 17.04% 1-Year Est. Return

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

State of Wisconsin Investment Board increased its iShares Core 1-5 Year USD Bond ETF (ISTB) stake by 2.5% in Q2 2026, buying an estimated $6.51M and bringing the position to 5,549,725 shares worth $268M. The position accounts for 0.54% of the portfolio, ranked #27.

State of Wisconsin Investment Board first reported a position in ISTB in Q2 2022 and has held it in 17 quarters since. 396 funds tracked by Wall St. Rank hold ISTB as of Q2 2026.

State of Wisconsin Investment Board held 5,549,725 shares of iShares Core 1-5 Year USD Bond ETF worth $268M as of Q2 2026.
State of Wisconsin Investment Board bought 134,700 iShares Core 1-5 Year USD Bond ETF shares in Q2 2026, an estimated $6.51M.
iShares Core 1-5 Year USD Bond ETF made up 0.54% of State of Wisconsin Investment Board's portfolio in Q2 2026, its #27 holding.
State of Wisconsin Investment Board first reported a position in iShares Core 1-5 Year USD Bond ETF in Q2 2022 and has held it in 17 quarters since.
396 funds tracked by Wall St. Rank held iShares Core 1-5 Year USD Bond ETF as of Q2 2026.

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