Data as of Oct 28, 2026.
SPYM vs UDEC: Differences, Returns & Fees
Over the year to Oct 28, 2026, SPYM returned +13.7% to UDEC's +11.1%, and SPYM charges 0.02% to UDEC's 0.79%.
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Net assets: $185.0bn on Oct 27, 2026 for State Street SPDR Portfolio S&P 500 ETF, and $237m on Oct 28, 2026 for Innovator U.S. Equity Ultra Buffer ETF - Dec.
Pair scorecard
SPYM costs 0.77 points a year less; their one-year returns differ by 2.6 points; SPYM is far larger, $185.0bn against $237m.
| Measure | SPYM | UDEC |
|---|---|---|
| Return | ||
| Total return, 1 year | +13.7% | +11.1% |
| Drawdown | ||
| Index fall to the buffer | 15.9% | |
| Fund price fall to the buffer | 14.1% | |
| Benchmark | ||
| What it tracks | S&P 500 Index | SPY |
| The outcome period | ||
| Buffer left, in index points | 30.0% of 30.0% | |
| Days left in the period | 33 | |
| Period ends | Nov 30, 2026 | |
| Cost and size | ||
| Expense ratio | 0.02% | 0.79% |
| Net assets, as of Oct 27, 2026 | $185.0bn | $237m |
| Holdings | ||
| Holdings in common | not published | |
| In the S&P 500, by weight | 100% | |
| Top ten holdings, share of the fund | 38.1% | |
Side by side
SPYM and UDEC on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.
SPYM
SPYM 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 0.02% 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 506 positions, with the top ten at 38.1%.
SPY had already risen past this fund's cap of +12.0% 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 1.4% as the period runs out.
The fund's price can fall 14.1% from here before the buffer starts absorbing losses, by the issuer's number. In index terms, SPY can fall 15.9% from today's level to the point where the buffer begins. Protection left, in index points: 30.0% of the 30.0% buffer still sits below today's SPY level. 33 days remained on Oct 28, 2026. On Nov 30, 2026 the period ends and a new cap is set.
Questions people ask
- Are SPYM and UDEC in the same category?
- SPYM is a stock ETF and UDEC 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, SPYM or UDEC?
- In the year to Oct 28, 2026, with distributions reinvested, SPYM returned +13.7% and UDEC +11.1%.
- Which is cheaper, SPYM or UDEC?
- SPYM is cheaper, by 0.77 percentage points a year. That is about $77 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, SPYM against UDEC, data as of Oct 28, 2026. https://etfiq.com/compare/any/spym-vs-udec
ETFIQ. (Oct 28, 2026). SPYM against UDEC. Retrieved from https://etfiq.com/compare/any/spym-vs-udec
[SPYM against UDEC (ETFIQ, Oct 28, 2026)](https://etfiq.com/compare/any/spym-vs-udec)
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