William Blair & Company
SMBS

William Blair & Company’s Schwab Mortgage-Backed Securities ETF SMBS Stock Holding History

William Blair & Company’s Portfolio SMBS Stock Details SMBS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$2.9K Buy
+114
New +$2.9K ﹤0.01% 1967
2026
Q1 		– Sell
-6
Closed -$154 – 2018
2025
Q4 		$154 Buy
+6
New +$154 ﹤0.01% 1864

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Citadel Advisors
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SF
Summit Financial Parsippany, New Jersey $9.12B AUM 27.44% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
Susquehanna International Group
Susquehanna International Group Bala Cynwyd, Pennsylvania $1.28T AUM 58.89% 1-Year Est. Return
Jane Street
Jane Street New York $1.21T AUM 78.12% 1-Year Est. Return

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

William Blair & Company opened a new position in Schwab Mortgage-Backed Securities ETF (SMBS) in Q2 2026: 114 shares worth $2.9K. The stake represents ﹤0.01% of the portfolio and ranks #1967 among its holdings. This is a return to the name: William Blair & Company previously reported a position in SMBS as recently as Q4 2025.

William Blair & Company first reported a position in SMBS in Q4 2025 and has held it in 2 quarters since. 80 funds tracked by Wall St. Rank hold SMBS as of Q2 2026.

  • William Blair & Company held 114 shares of Schwab Mortgage-Backed Securities ETF worth $2.9K as of Q2 2026.
  • Schwab Mortgage-Backed Securities ETF was a new William Blair & Company position in Q2 2026.
  • Schwab Mortgage-Backed Securities ETF made up ﹤0.01% of William Blair & Company's portfolio in Q2 2026, its #1967 holding.
  • William Blair & Company first reported a position in Schwab Mortgage-Backed Securities ETF in Q4 2025 and has held it in 2 quarters since.
  • 80 funds tracked by Wall St. Rank held Schwab Mortgage-Backed Securities ETF as of Q2 2026.

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