Resources

Everything this site claims traces back to a primary source. Rules verified as of 2026-07-12.

Primary sources

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Eligible funds

The statute requires a low-cost S&P 500 index fund with capped fees. The default fund this calculator models:

TickerFundExpense ratio
SPYM (default) State Street SPDR Portfolio S&P 500 ETF 0.03%
IVV iShares Core S&P 500 ETF 0.03%
VTI Vanguard Total Stock Market ETF 0.03%
SPTM SPDR Portfolio S&P 1500 Composite Stock Market ETF 0.03%
ITOT iShares Core S&P Total U.S. Stock Market ETF 0.03%