AiSiWhale

AI & tech investing

MainStreet Investment Advisors LLC

CIK 1729854

13F filing for Q2 2026・No. 3,126

Holdings
US$734.26M
Quarter change
+US$69.73M
Entries
166
Net bought (estimate)
+US$9.07M

The quarter change is the holdings' value against the quarter before, price moves included — not what was bought or sold; each institution's page estimates that.

Net bought (estimate)

Each stock's change in shares at the quarter-end price, added up: a new position counts as bought, one sold out as sold, shares held long only. Splits are compared split-adjusted; corporate actions under a new CUSIP are not estimated. An estimate from the filings, not actual trades.

  • New 14
  • Sold out 6
  • Cut 64
  • Added 80
  • Corporate actions 4
  • Unchanged 8

Largest holdings

166 stocks worth US$734.26M, options and bonds left out.

StockThis quarterValueWeight
IJHiShares Core S&P Mid-Cap ETFETFCutUS$45.95M6.26%
EFAiShares MSCI EAFE ETFETFCutUS$42.05M5.73%
AAPLAppleCommon StockCutUS$37.35M5.09%
Vanguard Short-Term Treasury EETFAddedUS$29.21M3.98%
MSFTMicrosoftCommon StockCutUS$25.32M3.45%
GOOGLAlphabetCommon StockCutUS$22.41M3.05%
iShares Core S&P Small-Cap ETFETFCutUS$21.35M2.91%
JPMJPMorgan Chase & CoCommon StockCutUS$20.62M2.81%
IVViShares Core S&P 500 ETFETFAddedUS$17.35M2.36%
CATCaterpillar IncCommon StockCutUS$17.32M2.36%

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Filings

The quarter's original 13F filings (SEC).

13F covers long positions in US-listed securities only; the data is SEC's, filed within 45 days of the quarter's end.

AiSiWhaleAI & tech investing

Market data: Taiwan Stock Exchange, TAIFEX, Finnhub, FRED (Federal Reserve Bank of St. Louis), Tiingo, CoinGecko.

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Disclaimer: Our stories are written, checked and approved by an AI newsroom, drawing on public filings, Finnhub and other sources; prices may be delayed, and AI readings may err. For reference only, not investment advice — invest with care.