William Blair & Company’s iShares S&P 100 ETF OEF Stock Holding History

William Blair & Company’s Portfolio OEF Stock Details OEF Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2017 Q3	–	Sell	-200	Closed	-$62K	–	1463
2017 Q2	$62K	Buy	+200	New	+$21.3K	﹤0.01%	1459
2015 Q3	–	Sell	-1,884,000	Closed	-$74.6M	–	1500
2015 Q2	$74.6M	Buy	1,884,000 +591,600	+46%	+$54.7M	0.11%	250
2015 Q1	$51.9M	Buy	1,292,400 +196,600	+18%	+$17.9M	0.08%	322
2014 Q4	$43.1M	Buy	+1,095,800	New	+$98M	0.07%	367

Other funds holding OEF

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

Fifth Third Bancorp Cincinnati, Ohio $61.7B AUM 33.76% 1-Year Est. Return

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

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

JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

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

LPL Financial San Diego, California $445B AUM 25.58% 1-Year Est. Return

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

CAM

Cresset Asset Management Chicago, Illinois $27.6B AUM 31.92% 1-Year Est. Return

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

William Blair & Company's OEF Position: Q2 2026 in Review

William Blair & Company reduced its iShares S&P 100 ETF (OEF) stake by 0.46% in Q2 2026, selling an estimated $35.8K and leaving 21,831 shares worth $7.99M. The position accounts for 0.02% of the portfolio, ranked #418.

William Blair & Company first reported a position in OEF in Q4 2015 and has held it in 39 quarters since. 1,025 funds tracked by Wall St. Rank hold OEF as of Q2 2026.

William Blair & Company held 21,831 shares of iShares S&P 100 ETF worth $7.99M as of Q2 2026.
William Blair & Company sold 100 iShares S&P 100 ETF shares in Q2 2026, an estimated $35.8K.
iShares S&P 100 ETF made up 0.02% of William Blair & Company's portfolio in Q2 2026, its #418 holding.
William Blair & Company first reported a position in iShares S&P 100 ETF in Q4 2015 and has held it in 39 quarters since.
1,025 funds tracked by Wall St. Rank held iShares S&P 100 ETF as of Q2 2026.

Based on William Blair & Company's 13F filing for Q2 2026, filed 11 Aug 2026.