Data as of Sep 13, 2026. Both funds on the fields they both publish, from the same sources.
ISPY vs VOO: how they differ
Over the year VOO returned more, +17.6% against +14.4%, and VOO charges 0.03% against 0.56%.
ProShares S&P 500 High Income ETF and Vanguard 500 Index Fund.
What they hold in common
By the books each fund has filed, ISPY and VOO hold 0% of their money in the same securities at the same weight.
| Only in ISPY | Only in VOO |
|---|---|
| ProShares GENIUS Money Market ETF 10.56% | NVIDIA Corp 7.53% |
| NVIDIA Corp. 7.07% | Apple Inc 6.61% |
| Apple, Inc. 6.31% | Microsoft Corp 4.31% |
| Microsoft Corp. 4.60% | Amazon.com Inc 3.63% |
| Amazon.com, Inc. 3.64% | Alphabet Inc 3.26% |
| Alphabet, Inc. 3.05% | Broadcom Inc 2.78% |
| Broadcom, Inc. 2.92% | Alphabet Inc 2.60% |
| Alphabet, Inc. 2.42% | Micron Technology Inc 2.02% |
Weight overlap is an ETFIQ calculation: for every security both funds hold, the smaller of the two weights, summed. Above 50%, holding both is close to holding one of them twice. Holdings dated Jun 30, 2026 and May 31, 2026.
| ISPY ProShares S&P 500 High Income ETF | VOO Vanguard 500 Index Fund | |
|---|---|---|
| Where it sits | Income ETF | Core index fund |
| Issuer | ProShares | Vanguard |
| What it is | covered call, vs SPY | S&P 500 |
| Total return, 1 year | +14.4% | +17.6% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | −3.1 pts | +0.1 pts |
| Cash paid, 1 year | 5.7% | not an income fund |
| Expense ratio | 0.56% | 0.03% |
| Holdings | not filed | 506 |
ISPY in plain words
Over the year to Sep 11, 2026, ISPY paid 5.7% of its starting value in cash distributions while its price rose 8.4%. With every distribution reinvested, the fund returned +14.4%. S&P 500 (SPY) returned +17.5% over the same days, so a holder was behind by 3.1 pts. At its price on Sep 11, 2026 the latest distribution annualizes to 5.8%, paid monthly.
VOO in plain words
VOO is an index equity fund tracking the S&P 500. Over the year to Sep 11, 2026 it returned +17.6% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.03% a year. By its holdings filed for Jun 30, 2026, 100% of the fund by weight is stocks the S&P 500 also holds, across 506 positions, with the top ten at 36.5%.
Questions people ask
- Which returned more over the last year, ISPY or VOO?
- In the year to Sep 13, 2026, with distributions reinvested, ISPY returned +14.4% and VOO returned +17.6%, so VOO returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, ISPY or VOO?
- ISPY charges 0.56% a year and VOO charges 0.03%, so VOO is cheaper. Fees come from each fund's prospectus.
- Are ISPY and VOO the same kind of fund?
- No. ISPY is an option-income ETF and VOO is an index ETF, so they are built for different jobs. The table compares what both publish: return, cost and what each actually holds.
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Where these figures came from
ETFIQ links to the documents behind every figure. It is not affiliated with any issuer, and a link is not an endorsement.
Cite this page. ETFIQ, ISPY against VOO, data as of Sep 13, 2026. https://etfiq.com/compare/any/ispy-vs-voo Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources