Data as of Oct 28, 2026.
ACWI vs VOO: Differences, Returns & Fees
Over the year to Oct 28, 2026, ACWI returned +13.4% to VOO's +13.7%; 63% of their weight is in the same names.
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Net assets: $33.0bn on Oct 28, 2026 for iShares MSCI ACWI ETF, and $1.0tn on Sep 30, 2026 for Vanguard S&P 500 ETF.
Pair scorecard
VOO costs 0.29 points a year less; their one-year returns differ by 0.3 points; VOO is far larger, $1.0tn against $32.8bn.
| Measure | ACWI | VOO |
|---|---|---|
| Return | ||
| Total return, 1 year | +13.4% | +13.7% |
| Benchmark | ||
| What it tracks | MSCI ACWI | S&P 500 Index |
| Cost and size | ||
| Expense ratio | 0.32% | 0.03% |
| Net assets, as of Sep 30, 2026 | $32.8bn | $1.0tn |
| Holdings | ||
| Holdings in common | 63% | |
| Top ten holdings, share of the fund | 24.9% | 39.1% |
Holdings in common uses holdings dated Sep 30, 2026 and Oct 27, 2026. Method
Risk and return
Sep 17, 2010 to Oct 23, 2026 · 840 weekly returnsVOO returned more: +804.0% to +412.2%. ACWI and VOO swung about the same: 15.9% and 15.9%. ACWI and VOO fell about the same at their worst: −32.1% and −31.8%.
Full scorecard
9 measures, with how each is measured Open ↓
| Measure | ACWI | VOO | Edge | How it is measured |
|---|---|---|---|---|
| Return | ||||
| Total return | +412.2% | +804.0% | VOO | Price change plus distributions, reinvested. |
| Annualized | +10.6% | +14.6% | VOO | Total return as a yearly rate. |
| Price return | +271.3% | +575.9% | VOO | Price change alone, distributions left out. |
| Risk | ||||
| Volatility | 15.9% | 15.9% | Tie | Spread of weekly returns, annualized. Lower is steadier. |
| Downside deviation | 11.1% | 10.9% | Tie | Like volatility, counting only weeks below the Treasury bill rate. |
| Max drawdown | −32.1% | −31.8% | Tie | Deepest fall from a high to the low after it. |
| Risk-adjusted | ||||
| Sharpe | 0.62 | 0.84 | VOO | Return above Treasury bills per unit of volatility. |
| Sortino | 0.88 | 1.22 | VOO | Return above Treasury bills per unit of downside deviation. |
| Calmar | 0.33 | 0.46 | VOO | Annualized return divided by the max drawdown. |
Computed by ETFIQ from Tiingo daily prices and ETFIQ's distribution records, 840 weekly returns. Cash rate: the 13-week Treasury bill.
What they share
By the books each fund has filed, ACWI and VOO hold 63% of their money in the same securities at the same weight. Holdings dated Sep 30, 2026 and Oct 27, 2026.
half
63% in common
Only in one fund ↓
Side by side
ACWI and VOO on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.
ACWI and VOO do different jobs. What does each one do in a portfolio?
- What each follows. ACWI follows MSCI ACWI and VOO follows S&P 500 Index.
- Number of holdings. ACWI holds 2,197 positions and VOO holds 507.
- Cost. ACWI charges 0.32% of assets a year and VOO 0.03%, a gap of 0.29 points.
Data as of Oct 28, 2026.
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ACWI
ACWI tracks the MSCI ACWI. Over the year to Oct 28, 2026 it returned +13.4% with distributions reinvested. The prospectus expense ratio is 0.32% a year. By its holdings published by its issuer for Oct 27, 2026, 61% of the fund by weight is stocks the S&P 500 also holds, across 2,197 positions, with the top ten at 24.9%.
VOO
VOO tracks the S&P 500. Over the year to Oct 28, 2026 it returned +13.7% with distributions reinvested, against +13.7% for its benchmark, the S&P 500 Index. The prospectus expense ratio is 0.03% a year. By its holdings published by its issuer as of Sep 30, 2026, 100% of the fund by weight is stocks the S&P 500 also holds, across 507 positions, with the top ten at 39.1%.
Questions people ask
- Which returned more over the last year, ACWI or VOO?
- In the year to Oct 28, 2026, with distributions reinvested, ACWI returned +13.4% and VOO +13.7%.
- Which is cheaper, ACWI or VOO?
- VOO is cheaper, by 0.29 percentage points a year. That is about $29 on $10,000 held for a year. Fees come from each fund's prospectus.
Links are sources, not endorsements. A comparison is not a recommendation.
How this is computed
Overlap adds up the smaller of the two weights for each security both funds hold.
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ETFIQ, ACWI against VOO, data as of Oct 28, 2026. https://etfiq.com/compare/any/acwi-vs-voo
ETFIQ. (Oct 28, 2026). ACWI against VOO. Retrieved from https://etfiq.com/compare/any/acwi-vs-voo
[ACWI against VOO (ETFIQ, Oct 28, 2026)](https://etfiq.com/compare/any/acwi-vs-voo)
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