Data as of Oct 28, 2026.
MARW vs VOO: Differences, Returns & Fees
Over the year to Oct 28, 2026, MARW returned +9.6% to VOO's +13.7%, and VOO charges 0.03% to MARW's 0.74%.
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Net assets: $86m on Oct 27, 2026 for AllianzIM U.S. Equity Buffer20 ETF - Mar, and $1.0tn on Sep 30, 2026 for Vanguard S&P 500 ETF.
Pair scorecard
VOO costs 0.71 points a year less; their one-year returns differ by 4.1 points.
| Measure | MARW | VOO |
|---|---|---|
| Return | ||
| Total return, 1 year | +9.6% | +13.7% |
| Drawdown | ||
| Index fall to the buffer | 11.2% | |
| Fund price fall to the buffer | 7.0% | |
| Benchmark | ||
| What it tracks | SPY | S&P 500 Index |
| The outcome period | ||
| Buffer left, in index points | 20.0% of 20.0% | |
| Days left in the period | 123 | |
| Period ends | Feb 28, 2027 | |
| Cost and size | ||
| Expense ratio | 0.74% | 0.03% |
| Net assets, MARW as of Oct 27, 2026 and VOO as of Sep 30, 2026 | $86m | $1.0tn |
| Holdings | ||
| Holdings in common | not published | |
| In the S&P 500, by weight | 100% | |
| Top ten holdings, share of the fund | 39.1% | |
Side by side
MARW and VOO on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.
SPY had already risen past this fund's cap of +10.8% for the period on Oct 28, 2026, so in index terms there is no more upside to collect. The fund's own price can still drift up to about 3.1% as the period runs out.
The fund's price can fall 7.0% from here before the buffer starts absorbing losses, by the issuer's number. In index terms, SPY can fall 11.2% from today's level to the point where the buffer begins. Protection left, in index points: 20.0% of the 20.0% buffer still sits below today's SPY level. 123 days remained on Oct 28, 2026. On Feb 28, 2027 the period ends and a new cap is set.
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
- Are MARW and VOO in the same category?
- MARW is a buffer ETF and VOO is a stock ETF, so they do different jobs. The table compares what both publish: return, cost and holdings.
- Which returned more over the last year, MARW or VOO?
- In the year to Oct 28, 2026, with distributions reinvested, MARW returned +9.6% and VOO +13.7%.
- Which is cheaper, MARW or VOO?
- VOO is cheaper, by 0.71 percentage points a year. That is about $71 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.
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ETFIQ, MARW against VOO, data as of Oct 28, 2026. https://etfiq.com/compare/any/marw-vs-voo
ETFIQ. (Oct 28, 2026). MARW against VOO. Retrieved from https://etfiq.com/compare/any/marw-vs-voo
[MARW against VOO (ETFIQ, Oct 28, 2026)](https://etfiq.com/compare/any/marw-vs-voo)
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