Data as of Oct 28, 2026.

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VOO vs ZAUG: Differences, Returns & Fees

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Over the year to Oct 28, 2026, VOO returned +13.7% to ZAUG's +5.5%, and VOO charges 0.03% to ZAUG's 0.79%.

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Net assets: $1.0tn on Sep 30, 2026 for Vanguard S&P 500 ETF, and $160m on Oct 28, 2026 for Innovator Equity Defined Protection ETF - 1 Yr August.

At a glance
+13.7%
VOO total return, 1 year
+5.5%
ZAUG total return, 1 year
0.03%
VOO expense ratio
0.79%
ZAUG expense ratio

Pair scorecard

VOO costs 0.76 points a year less; their one-year returns differ by 8.2 points.

VOO vs ZAUG: Differences, Returns & Fees
MeasureVOOZAUG
Return
Total return, 1 year+13.7%+5.5%
Drawdown
Index fall to the buffer3.2%
Fund price fall to the buffer1.5%
Benchmark
What it tracksS&P 500 IndexSPY
The outcome period
Room to the cap6.7%
Buffer left, in index points100.0% of 100.0%
Days left in the period276
Period endsJul 31, 2027
Cost and size
Expense ratio0.03%0.79%
Net assets, VOO as of Sep 30, 2026 and ZAUG as of Oct 28, 2026$1.0tn$160m
Holdings
Holdings in commonnot published
Top ten holdings, share of the fund39.1%

Method

Side by side

VOO Vanguard S&P 500 ETF ZAUG Innovator Equity Defined Protection ETF - 1 Yr August
Where it sits Stock ETF Buffer ETF
What it is Tracks the S&P 500 Defined outcome, 100% on SPY
Total return, 1 year +13.7% +5.5%
Its benchmark over the same days +13.7% (IVV) +12.4% (SPY)
Gap to its benchmark 0.0 pts vs IVV −6.9 pts vs SPY
Expense ratio 0.03% 0.79%
Holdings 507 not read by ETFIQ
Net assets, VOO as of Sep 30, 2026 and ZAUG as of Oct 28, 2026 $1.0tn $160m

VOO and ZAUG on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.

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About each fund
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%.

ZAUG

From its price on Oct 28, 2026, the fund can gain about 6.7% more before it reaches its cap. The fund's price can fall 1.5% from here before the buffer starts absorbing losses, by the issuer's number. In index terms, SPY can fall 3.2% from today's level to the point where the buffer begins. Protection left, in index points: 100.0% of the 100.0% buffer still sits below today's SPY level. 276 days remained on Oct 28, 2026. On Jul 31, 2027 the period ends and a new cap is set.

Questions people ask

Are VOO and ZAUG in the same category?
VOO is a stock ETF and ZAUG is a buffer ETF, so they do different jobs. The table compares what both publish: return, cost and holdings.
Which returned more over the last year, VOO or ZAUG?
In the year to Oct 28, 2026, with distributions reinvested, VOO returned +13.7% and ZAUG +5.5%.
Which is cheaper, VOO or ZAUG?
VOO is cheaper, by 0.76 percentage points a year. That is about $76 on $10,000 held for a year. Fees come from each fund's prospectus.
Other comparisons
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ETFIQ, VOO against ZAUG, data as of Oct 28, 2026. https://etfiq.com/compare/any/voo-vs-zaug

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