Data as of Oct 28, 2026.

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SPY vs ZMAY: Differences, Returns & Fees

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Over the year to Oct 28, 2026, SPY returned +13.6% to ZMAY's +5.1%, and SPY charges 0.09% to ZMAY's 0.79%.

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Net assets: $814.8bn on Oct 27, 2026 for SPDR S&P 500 ETF Trust, and $64m on Oct 28, 2026 for Innovator Equity Defined Protection ETF - 1 Yr May.

At a glance
+13.6%
SPY total return, 1 year
+5.1%
ZMAY total return, 1 year
0.09%
SPY expense ratio
0.79%
ZMAY expense ratio

Pair scorecard

SPY costs 0.70 points a year less; their one-year returns differ by 8.5 points; SPY is far larger, $814.8bn against $83m.

SPY vs ZMAY: Differences, Returns & Fees
MeasureSPYZMAY
Return
Total return, 1 year+13.6%+5.1%
Drawdown
Index fall to the buffer6.9%
Fund price fall to the buffer3.1%
Benchmark
What it tracksS&P 500 IndexSPY
The outcome period
Buffer left, in index points100.0% of 100.0%
Days left in the period184
Period endsApr 30, 2027
Cost and size
Expense ratio0.09%0.79%
Net assets, as of Oct 27, 2026$814.8bn$83m
Holdings
Holdings in commonnot published
Top ten holdings, share of the fund38.1%

Method

Side by side

SPY SPDR S&P 500 ETF Trust ZMAY Innovator Equity Defined Protection ETF - 1 Yr May
Where it sits Stock ETF Buffer ETF
What it is Tracks the S&P 500 Defined outcome, 100% on SPY
Total return, 1 year +13.6% +5.1%
Its benchmark over the same days +13.7% (VOO) +12.4% (SPY)
Gap to its benchmark −0.1 pts vs VOO −7.3 pts vs SPY
Expense ratio 0.09% 0.79%
Holdings 504 not read by ETFIQ
Net assets, SPY as of Oct 27, 2026 and ZMAY as of Oct 28, 2026 $814.8bn $64m

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

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About each fund
SPY

SPY tracks the S&P 500. Over the year to Oct 28, 2026 it returned +13.6% with distributions reinvested, against +13.7% for its benchmark, the S&P 500 Index. The prospectus expense ratio is 0.09% a year. By its holdings published by its issuer for Oct 27, 2026, 100% of the fund by weight is stocks the S&P 500 also holds, across 504 positions, with the top ten at 38.1%.

ZMAY

SPY had already risen past this fund's cap of +7.3% 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 4.0% as the period runs out.

The fund's price can fall 3.1% from here before the buffer starts absorbing losses, by the issuer's number. In index terms, SPY can fall 6.9% 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. 184 days remained on Oct 28, 2026. On Apr 30, 2027 the period ends and a new cap is set.

Questions people ask

Are SPY and ZMAY in the same category?
SPY is a stock ETF and ZMAY 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, SPY or ZMAY?
In the year to Oct 28, 2026, with distributions reinvested, SPY returned +13.6% and ZMAY +5.1%.
Which is cheaper, SPY or ZMAY?
SPY is cheaper, by 0.70 percentage points a year. That is about $70 on $10,000 held for a year. Fees come from each fund's prospectus.
Other comparisons
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ETFIQ, SPY against ZMAY, data as of Oct 28, 2026. https://etfiq.com/compare/any/spy-vs-zmay

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