MSR
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Main Street Research’s iShares Core S&P Total US Stock Market ETF ITOT Stock Holding History

Main Street Research’s Portfolio ITOT Stock Details ITOT Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-3,405
Closed -$506K – 156
2025
Q4 		$506K Hold
3,405
– – 0.03% 80
2025
Q3 		$496K Hold
3,405
– – 0.03% 84
2025
Q2 		$460K Buy
+3,405
New +$425K 0.03% 76

Other funds holding ITOT

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Wells Fargo
Wells Fargo San Francisco, California $530B AUM 22.01% 1-Year Est. Return
Wealthfront Advisers
Wealthfront Advisers Palo Alto, California $45.6B AUM 18.83% 1-Year Est. Return
AllianceBernstein
AllianceBernstein Nashville, Tennessee $309B AUM 23.92% 1-Year Est. Return
Betterment LLC
Betterment LLC New York $52.8B AUM 15.34% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Focus Partners Wealth
Focus Partners Wealth Boston, Massachusetts $89.9B AUM 20.5% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return
LPL Financial
LPL Financial San Diego, California $377B AUM 19.32% 1-Year Est. Return
FPAS
Focus Partners Advisor Solutions Saint Louis, Missouri $11.8B AUM 25.68% 1-Year Est. Return

Main Street Research's ITOT Position: Q1 2026 in Review

Main Street Research sold out of iShares Core S&P Total US Stock Market ETF (ITOT) in Q1 2026, closing a stake of 3,405 shares — an estimated $506K sold.

Main Street Research first reported a position in ITOT in Q2 2025 and held it in 3 quarters. The position peaked at $506K in Q4 2025. 1,621 funds tracked by Wall St. Rank hold ITOT as of Q1 2026.

  • Main Street Research reported no remaining iShares Core S&P Total US Stock Market ETF position as of Q1 2026 after selling out during the quarter.
  • Main Street Research sold 3,405 iShares Core S&P Total US Stock Market ETF shares in Q1 2026, an estimated $506K.
  • Main Street Research first reported a position in iShares Core S&P Total US Stock Market ETF in Q2 2025 and held it in 3 quarters.
  • Main Street Research's iShares Core S&P Total US Stock Market ETF position peaked at $506K in Q4 2025.
  • 1,621 funds tracked by Wall St. Rank held iShares Core S&P Total US Stock Market ETF as of Q1 2026.

Based on Main Street Research's 13F filing for Q1 2026, filed 30 Apr 2026.