Data as of Oct 28, 2026.

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DECU vs VOO: Differences, Returns & Fees

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Over the year to Oct 28, 2026, DECU returned +7.5% to VOO's +13.7%, and VOO charges 0.03% to DECU's 0.74%.

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Net assets: $53m on Oct 27, 2026 for AllianzIM U.S. Equity Buffer15 Uncapped ETF - Dec, and $1.0tn on Sep 30, 2026 for Vanguard S&P 500 ETF.

At a glance
+7.5%
DECU total return, 1 year
+13.7%
VOO total return, 1 year
0.74%
DECU expense ratio
0.03%
VOO expense ratio

Pair scorecard

VOO costs 0.71 points a year less; their one-year returns differ by 6.2 points.

DECU vs VOO: Differences, Returns & Fees
MeasureDECUVOO
Return
Total return, 1 year+7.5%+13.7%
Drawdown
Index fall to the buffer11.5%
Fund price fall to the buffer8.7%
Benchmark
What it tracksSPYS&P 500 Index
The outcome period
Buffer left, in index points15.0% of 15.0%
Days left in the period33
Cost and size
Expense ratio0.74%0.03%
Net assets, DECU as of Oct 27, 2026 and VOO as of Sep 30, 2026$53m$1.0tn
Holdings
Holdings in commonnot published
In the S&P 500, by weight100%
Top ten holdings, share of the fund39.1%

Method

Risk and return

Dec 13, 2024 to Oct 23, 2026 · 97 weekly returns
DECU VOO
Return
Total return edge VOO +17.1% +28.8%
Annualized edge VOO +8.8% +14.5%
Price return edge VOO +17.1% +25.7%
Risk
Volatility edge DECU 9.8% 14.9%
Max drawdown edge DECU −9.3% −16.7%
Downside capture 77.8% 99.9%
Beta 0.63 1.00
Risk-adjusted
Sharpe edge VOO 0.51 0.72
Sortino edge VOO 0.75 1.08
Treynor 0.079 0.134
Calmar edge DECU (slight) 0.95 0.87
Against the benchmark
Alpha −1.7% a year 0.0% a year
Alpha t-stat −0.87 0.51
Information ratio −0.92 0.02
Tracking error 6.2% 0.4%

Each against its own benchmark: DECU against SPY, Dec 13, 2024 to Oct 23, 2026; VOO against IVV, Sep 17, 2010 to Oct 23, 2026.

Reading

VOO returned more: +28.8% to +17.1%. DECU swung less: 9.8% to 14.9%. DECU fell less at its worst: −9.3% to −16.7%.

Full scorecard

19 measures, with how each is measured
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Risk and return: DECU vs VOO: Differences, Returns & Fees
MeasureDECUVOOEdgeHow it is measured
Return
Total return+17.1%+28.8%VOOPrice change plus distributions, reinvested.
Annualized+8.8%+14.5%VOOTotal return as a yearly rate.
Price return+17.1%+25.7%VOOPrice change alone, distributions left out.
Risk
Volatility9.8%14.9%DECUSpread of weekly returns, annualized. Lower is steadier.
Downside deviation6.6%9.9%DECULike volatility, counting only weeks below the Treasury bill rate.
Max drawdown−9.3%−16.7%DECUDeepest fall from a high to the low after it.
Upside capture58.7%99.8%Share of its benchmark's rise caught in the weeks it rose.
Downside capture77.8%99.9%Share of its benchmark's fall taken in the weeks it fell. Lower is better.
Beta0.631.00Not an edgeHow far it moves for each 1% its benchmark moves.
R squared0.921.00Not an edgeShare of its weekly moves its benchmark explains.
Risk-adjusted
Sharpe0.510.72VOOReturn above Treasury bills per unit of volatility.
Sortino0.751.08VOOReturn above Treasury bills per unit of downside deviation.
Treynor0.0790.134Return above Treasury bills per unit of beta.
Calmar0.950.87DECU (slight)Annualized return divided by the max drawdown.
Against the benchmark
BenchmarkSPYIVVThe ETF each fund is measured against.
Alpha−1.7% a year0.0% a yearNot significantYearly return beyond what its beta to the benchmark predicts.
Alpha t-stat−0.870.51Not an edgeHow sure the alpha is. Below 2, it could be chance.
Alpha range−5.7% to +2.2%−0.1% to +0.2%Includes zeroThe 95% range for the yearly alpha.
Information ratio−0.920.02Return against its benchmark per unit of tracking error.
Tracking error6.2%0.4%Not an edgeHow far weekly returns stray from the benchmark, annualized.

Computed by ETFIQ from Tiingo daily prices and ETFIQ's distribution records, 97 weekly returns. Cash rate: the 13-week Treasury bill.

Side by side

DECU AllianzIM U.S. Equity Buffer15 Uncapped ETF - Dec VOO Vanguard S&P 500 ETF
Where it sits Buffer ETF Stock ETF
What it is Defined outcome, 15% on SPY Tracks the S&P 500
Total return, 1 year +7.5% +13.7%
Its benchmark over the same days +12.4% (SPY) +13.7% (IVV)
Gap to its benchmark −4.9 pts vs SPY 0.0 pts vs IVV
Expense ratio 0.74% 0.03%
Holdings not read by ETFIQ 507
Net assets, DECU as of Oct 27, 2026 and VOO as of Sep 30, 2026 $53m $1.0tn

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

Client brief · page 1 of 2 Report BR-8F2B832D61

DECU and VOO do different jobs. What does each one do in a portfolio?

  1. What each follows. DECU follows SPY and VOO follows S&P 500 Index.
  2. One-year total return. Over 1 year to Oct 28, 2026 DECU returned +7.5% and VOO +13.7% with distributions reinvested, a gap of 6.2 points.
  3. Cost. DECU charges 0.74% of assets a year and VOO 0.03%, a gap of 0.71 points.

Data as of Oct 28, 2026.

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About each fund
DECU

This fund has no cap. It takes a share of any further rise in SPY. The fund's price can fall 8.7% from here before the buffer starts absorbing losses, by the issuer's number. In index terms, SPY can fall 11.5% from today's level to the point where the buffer begins. Protection left, in index points: 15.0% of the 15.0% buffer still sits below today's SPY level. 33 days remained on Oct 28, 2026. On Nov 30, 2026 the period ends and new terms are 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 DECU and VOO in the same category?
DECU 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, DECU or VOO?
In the year to Oct 28, 2026, with distributions reinvested, DECU returned +7.5% and VOO +13.7%.
Which is cheaper, DECU 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.
Other comparisons
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ETFIQ, DECU against VOO, data as of Oct 28, 2026. https://etfiq.com/compare/any/decu-vs-voo

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Free to use with attribution for data ETFIQ computes; issuer data stays under its owner's terms.