FSKAX vs VTI: Which Should You Buy?
About 97% the same holdings.
Want to check another pair? Use the free ETF overlap tool.
For most investors it barely matters. FSKAX and VTI have returned within 0.1% a year of each other and overlap about 97% by weight. Pick VTI for the tighter 3,519-holding portfolio; pick FSKAX to own 3,744 instead.
This is purely for informational purposes, not investment advice. Always consult a professional before making investment decisions.
FSKAX wins if...
You want maximum diversification: 3,744 holdings covering the broader market, tracking the The Fidelity Total Market Index.
VTI wins if...
You want the tighter portfolio: 3,519 holdings rather than 3,744, tracking the CRSP US Total Market Index.
FSKAX vs VTI, side by side
The numbers that actually differ are highlighted.
| Metric | FSKAXFidelity Total Market Index Fund | VTIVanguard Morningstar Total Stock Market ETF |
|---|---|---|
| Index tracked | The Fidelity Total Market Index | CRSP US Total Market Index |
| Number of holdings | 3,744 | 3,519 |
| Expense ratio | — | 0.03% |
| Dividend yield | 0.94% | 1.06% |
| AUM | — | $689.20B |
| Top 10 concentration | 34.7% | 34.6% |
| 10-yr total return | 15.0% | 15.1% |
| 5-yr total return | 10.5% | 10.6% |
| Beta (vs S&P 500) | 1.03 | 1.02 |
| Max drawdown (10yr) | -35.0% | -35.0% |
| Market-cap coverage | Large + mid + small | Large + mid + small |
| Inception | 2011 | 2001 |
— means the figure is not reported for that fund.
VTI holds 3,519 positions tracking the CRSP US Total Market Index. FSKAX holds 3,744, a broader slice of the same market.
How much do FSKAX and VTI overlap?
The single most decision-relevant fact, and the one most comparisons skip.
- Shared
- 96.6%
- VTI-only
- 3.4%
~97% identical by weight
2,208 weighted positions appear in both funds, and by weight about 97% of the two portfolios is the same exposure. Where a stock sits in both, the shared share is whichever weight is smaller. That is the part of a dollar that behaves identically in either fund.
The difference is FSKAX's remaining 225 positions, which VTI does not hold at all. They are smaller by weight, which is why the two track each other closely and drift apart only at the margins.
Growth of $10,000: FSKAX vs VTI
Growth of $10,000
10 years
Which should you choose?
- You want the wider net: 3,744 holdings against 3,519
- You want to track the The Fidelity Total Market Index
- You want concentrated exposure: 3,519 holdings, not 3,744
- You want to track the CRSP US Total Market Index
- You want the higher yield: 1.06% against 0.94%
Compare and track all ETFs in your sheet
Type =WISE("FSKAX","dividend yield","ttm") or =WISEFUNDS("FSKAX","expense ratio") in Excel or Google Sheets and the fund's data lands in your sheet, ready to be refreshed when you want.
Get The Add-in - FreeFSKAX vs VTI frequently asked questions
For most investors the choice barely matters: FSKAX and VTI have returned within 0.1% of each other per year and they overlap roughly 97% by weight. Compare the fee and the holdings count below and pick the one that matches how broad you want the exposure to be.
Yes, by about 97% by weight. 2,208 weighted positions appear in both funds. Because the largest positions dominate both portfolios, the two behave similarly day to day.
VTI holds 3,519 positions tracking the CRSP US Total Market Index. FSKAX holds 3,744, a broader slice of the same market.
You can, but there is little reason to. At about 97% overlap, owning both mostly duplicates the same positions and adds little diversification.