VTI vs VTSAX: Which Should You Pick?
VTI or VTSAX? They are share classes of the same Vanguard fund and same CRSP index. ETF vs Admiral mutual fund on cost, portability, and how you invest.
VTI and VTSAX are the same fund. Both are share classes of Vanguard’s Total Stock Market Index Fund, tracking the same CRSP US Total Market Index with the same holdings and the same returns before fees. VTI is the ETF share class; VTSAX is the Admiral mutual fund share class. The choice is about the wrapper and how you like to invest, not about what you own.
Quick answer
For new taxable money, VTI is the more portable default: it is a touch cheaper at 0.03%, trades at any brokerage, and its ETF structure sheds capital-gains distributions. VTSAX (0.04% Admiral) is great if you invest at Vanguard and want automatic dollar-based investing and end-of-day NAV fills with no bid/ask spread. At Vanguard you can convert VTSAX to VTI tax-free (one way) if you later want the ETF, so you are not locked in.
| VTI | VTSAX | |
|---|---|---|
| Same fund? | Yes. Share classes of the Vanguard Total Stock Market Index Fund. | |
| Index | CRSP US Total Market (identical) | |
| Wrapper | ETF | Mutual fund (Admiral shares) |
| Expense ratio | 0.03% | 0.04% |
| Minimum | Price of one share | $3,000 |
| How you buy | Market/limit orders, intraday, bid/ask spread | End-of-day NAV, no spread, dollar-based amounts |
| Automatic investing | Limited (whole-share or fractional at some brokers) | Yes, set-and-forget dollar amounts at Vanguard |
| Portability | Any brokerage, in-kind | Vanguard-preferred; converts tax-free to VTI (one way) |
| Taxable-account efficiency | ETF in-kind redemptions limit cap-gains distributions | Slightly less structurally efficient, still very low |
Vanguard fund documents. Both are share classes of the Vanguard Total Stock Market Index Fund. Expense ratios as of early 2026.
The practical difference is small. The 0.01% fee gap is $1 a year per $10k. VTI wins on portability and marginal tax efficiency; VTSAX wins on hands-off dollar-cost averaging at Vanguard. Since VTSAX can convert to VTI tax-free at Vanguard, you can start with whichever fits your workflow and change your mind later without a tax bill.
Who should pick which
Pick VTI if you
- Invest in a taxable account or outside Vanguard.
- Want a fund you can move to any brokerage in-kind.
- Do not need a $3,000 minimum waived away.
Pick VTSAX if you
- Invest at Vanguard and want automatic dollar investing.
- Prefer end-of-day NAV fills with no bid/ask spread.
- Like round-dollar contributions over whole-share orders.
The full reasoning
For how benchmark design and fund structure shape what a total-market fund actually delivers, read Zero Fee, Non-Zero Benchmark Risk: Why Fidelity’s ZERO Funds Optimize the Wrong Variable. See also FZROX vs VTI and FZROX vs VTSAX.
Want to see how this fits your whole portfolio?
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