VFINX vs VOO: Vanguard 500 Index Fund vs Its ETF Class
VFINX and VOO are both share classes of the Vanguard 500 Index Fund, tracking the S&P 500. VFINX is the original Investor mutual-fund class and is closed to new investors — existing holders can convert to the cheaper Admiral class (VFIAX). VOO is the fund’s ETF share class: it trades intraday like a stock, has no minimum beyond a single share, and carries a lower expense ratio than the Investor class.
| Metric | VFINX | VOO |
|---|---|---|
| Sector | Financial Services | Financial Services |
| Industry | Asset Management | Asset Management |
| Current Price | — | — |
| Market Cap | $1.71T | $1.71T |
| PE Ratio | — | — |
| PEG Ratio | — | — |
| PEG Verdict | N/A | N/A |
Frequently asked questions
Are VFINX and VOO the same fund?
Yes — both are share classes of the Vanguard 500 Index Fund tracking the S&P 500. VFINX is the original Investor mutual-fund class, now closed to new investors; VOO is the fund’s ETF share class, which trades intraday and carries a lower expense ratio.