Data as of Oct 28, 2026.
ISPY vs VOO: Differences, Returns & Fees
Over the year to Oct 28, 2026, ISPY returned +10.1% to VOO's +13.7%, and VOO charges 0.03% to ISPY's 0.55%.
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Net assets: $1.2bn on Oct 28, 2026 for ProShares S&P 500 High Income ETF, and $1.0tn on Sep 30, 2026 for Vanguard S&P 500 ETF.
Pair scorecard
VOO costs 0.52 points a year less; their one-year returns differ by 3.6 points; VOO is far larger, $1.0tn against $1.2bn.
| Measure | ISPY | VOO |
|---|---|---|
| Return | ||
| Total return, 1 year | +10.1% | +13.7% |
| Price change, 1 year | rose 4.0% | rose 12.4% |
| Latest payout, annualized | 6.3% | |
| Return of capital, issuer estimate | 81% of the Oct 7, 2026 payment | |
| Against its benchmark | ||
| What it tracks | Benchmark: S&P 500, measured through SPY | S&P 500 Index |
| Against its benchmark, same days | behind by 3.5 pts | |
| Cost and size | ||
| Expense ratio | 0.55% | 0.03% |
| Net assets, as of Sep 30, 2026 | $1.2bn | $1.0tn |
| Holdings | ||
| Holdings in common | 84% | |
| In the S&P 500, by weight | 100% | |
| Top ten holdings, share of the fund | 39.1% | |
Holdings in common uses holdings dated Aug 31, 2026 and Sep 30, 2026. Method
Risk and return
Dec 29, 2023 to Oct 23, 2026 · 147 weekly returnsEach against its own benchmark: ISPY against SPY, Dec 29, 2023 to Oct 23, 2026; VOO against IVV, Sep 17, 2010 to Oct 23, 2026.
VOO returned more: +65.5% to +49.9%. ISPY swung slightly less: 12.8% to 14.1%. ISPY fell slightly less at its worst: −15.6% to −16.7%.
Full scorecard
19 measures, with how each is measured Open ↓
| Measure | ISPY | VOO | Edge | How it is measured |
|---|---|---|---|---|
| Return | ||||
| Total return | +49.9% | +65.5% | VOO | Price change plus distributions, reinvested. |
| Annualized | +15.4% | +19.5% | VOO | Total return as a yearly rate. |
| Price return | +17.6% | +59.9% | VOO | Price change alone, distributions left out. |
| Risk | ||||
| Volatility | 12.8% | 14.1% | ISPY (slight) | Spread of weekly returns, annualized. Lower is steadier. |
| Downside deviation | 8.8% | 9.1% | ISPY (slight) | Like volatility, counting only weeks below the Treasury bill rate. |
| Max drawdown | −15.6% | −16.7% | ISPY (slight) | Deepest fall from a high to the low after it. |
| Upside capture | 85.6% | 99.8% | Share of its benchmark's rise caught in the weeks it rose. | |
| Downside capture | 96.6% | 99.9% | Share of its benchmark's fall taken in the weeks it fell. Lower is better. | |
| Beta | 0.89 | 1.00 | Not an edge | How far it moves for each 1% its benchmark moves. |
| R squared | 0.96 | 1.00 | Not an edge | Share of its weekly moves its benchmark explains. |
| Risk-adjusted | ||||
| Sharpe | 0.84 | 1.03 | VOO | Return above Treasury bills per unit of volatility. |
| Sortino | 1.22 | 1.58 | VOO | Return above Treasury bills per unit of downside deviation. |
| Treynor | 0.121 | 0.134 | Return above Treasury bills per unit of beta. | |
| Calmar | 0.99 | 1.17 | VOO | Annualized return divided by the max drawdown. |
| Against the benchmark | ||||
| Benchmark | SPY | IVV | The ETF each fund is measured against. | |
| Alpha | −2.0% a year | 0.0% a year | Not significant | Yearly return beyond what its beta to the benchmark predicts. |
| Alpha t-stat | −1.26 | 0.51 | Not an edge | How sure the alpha is. Below 2, it could be chance. |
| Alpha range | −5.1% to +1.1% | −0.1% to +0.2% | Includes zero | The 95% range for the yearly alpha. |
| Information ratio | −1.17 | 0.02 | Return against its benchmark per unit of tracking error. | |
| Tracking error | 3.1% | 0.4% | Not an edge | How far weekly returns stray from the benchmark, annualized. |
Computed by ETFIQ from Tiingo daily prices and ETFIQ's distribution records, 147 weekly returns. Cash rate: the 13-week Treasury bill.
What they share
By the books each fund has filed, ISPY and VOO hold 84% of their money in the same securities at the same weight. Holdings dated Aug 31, 2026 and Sep 30, 2026.
half
84% in common
Only in one fund ↓
Side by side
ISPY and VOO on the fields both publish, as of Oct 28, 2026. Source: ETFIQ. Cash paid: distributions over the window, as a share of the starting price.
ISPY and VOO do different jobs. What does each one do in a portfolio?
- What each follows. ISPY is measured against S&P 500 through SPY and VOO follows S&P 500 Index.
- One-year total return. Over 1 year to Oct 28, 2026 ISPY returned +10.1% and VOO +13.7% with distributions reinvested, a gap of 3.6 points.
- Cost. ISPY charges 0.55% of assets a year and VOO 0.03%, a gap of 0.52 points.
Data as of Oct 28, 2026.
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ISPY
Over the year to Oct 28, 2026, ISPY paid 5.7% of its starting value in cash distributions while its price rose 4.0%. With every distribution reinvested, the fund returned +10.1%. S&P 500 (SPY) returned +13.6% over the same days, so a holder was behind by 3.5 pts. At its price on Oct 28, 2026 the latest distribution annualizes to 6.3%, paid monthly. ProShares estimates that 81% of the distribution paid Oct 7, 2026 was a return of capital (its 19a-1 notice). That is a tax label, not a measure of erosion.
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 ISPY and VOO in the same category?
- ISPY is an option-income 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, ISPY or VOO?
- In the year to Oct 28, 2026, with distributions reinvested, ISPY returned +10.1% and VOO +13.7%.
- Which is cheaper, ISPY or VOO?
- VOO is cheaper, by 0.52 percentage points a year. That is about $52 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.
How this is computed
Overlap adds up the smaller of the two weights for each security both funds hold.
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ETFIQ, ISPY against VOO, data as of Oct 28, 2026. https://etfiq.com/compare/any/ispy-vs-voo
ETFIQ. (Oct 28, 2026). ISPY against VOO. Retrieved from https://etfiq.com/compare/any/ispy-vs-voo
[ISPY against VOO (ETFIQ, Oct 28, 2026)](https://etfiq.com/compare/any/ispy-vs-voo)
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