Data as of Oct 28, 2026.
RSP vs SPTM: Differences, Returns & Fees
Over the year to Oct 28, 2026, RSP returned +16.0% to SPTM's +13.7%; 42% of their weight is in the same names.
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Net assets on Oct 27, 2026: $99.8bn for Invesco S&P 500 Equal Weight ETF and $14.2bn for State Street SPDR Portfolio S&P 1500 Composite Stock Market ETF.
Pair scorecard
SPTM costs 0.17 points a year less; their one-year returns differ by 2.3 points; RSP is 7.0 times larger.
| Measure | RSP | SPTM |
|---|---|---|
| Return | ||
| Total return, 1 year | +16.0% | +13.7% |
| Benchmark | ||
| What it tracks | S&P 500 Equal Weight Index | S&P Composite 1500 Index |
| Cost and size | ||
| Expense ratio | 0.20% | 0.03% |
| Net assets, as of Oct 27, 2026 | $99.8bn | $14.2bn |
| Holdings | ||
| Holdings in common | 42% | |
| Top ten holdings, share of the fund | 2.7% | 35.2% |
Holdings in common uses holdings dated Oct 27, 2026. Method
Risk and return
May 9, 2003 to Oct 23, 2026 · 1,224 weekly returns · each against IVVSPTM returned slightly more: +1,128.5% to +1,085.5%. SPTM swung slightly less: 17.1% to 18.8%. SPTM fell slightly less at its worst: −54.1% to −59.6%.
Full scorecard
19 measures, with how each is measured Open ↓
| Measure | RSP | SPTM | IVV | Edge | How it is measured |
|---|---|---|---|---|---|
| Return | |||||
| Total return | +1,085.5% | +1,128.5% | SPTM (slight) | Price change plus distributions, reinvested. | |
| Annualized | +11.1% | +11.2% | Tie | Total return as a yearly rate. | |
| Price return | +726.1% | +720.7% | Tie | Price change alone, distributions left out. | |
| Risk | |||||
| Volatility | 18.8% | 17.1% | SPTM (slight) | Spread of weekly returns, annualized. Lower is steadier. | |
| Downside deviation | 13.2% | 12.0% | SPTM (slight) | Like volatility, counting only weeks below the Treasury bill rate. | |
| Max drawdown | −59.6% | −54.1% | SPTM (slight) | Deepest fall from a high to the low after it. | |
| Upside capture | 104.7% | 97.1% | 100.0% | RSP (slight) | Share of its benchmark's rise caught in the weeks it rose. |
| Downside capture | 102.9% | 98.5% | 100.0% | SPTM (slight) | Share of its benchmark's fall taken in the weeks it fell. Lower is better. |
| Beta | 1.07 | 0.94 | 1.00 | SPTM lower | How far it moves for each 1% its benchmark moves. |
| R squared | 0.92 | 0.87 | 1.00 | Not an edge | Share of its weekly moves its benchmark explains. |
| Risk-adjusted | |||||
| Sharpe | 0.56 | 0.61 | SPTM (slight) | Return above Treasury bills per unit of volatility. | |
| Sortino | 0.80 | 0.86 | SPTM (slight) | Return above Treasury bills per unit of downside deviation. | |
| Treynor | 0.098 | 0.110 | 0.104 | SPTM | Return above Treasury bills per unit of beta. |
| Calmar | 0.19 | 0.21 | SPTM | Annualized return divided by the max drawdown. | |
| Against the benchmark | |||||
| Benchmark | IVV | IVV | IVV | The ETF each fund is measured against. | |
| Alpha | −0.6% a year | +0.5% a year | 0.0% | Not significant | Yearly return beyond what its beta to the benchmark predicts. |
| Alpha t-stat | −0.57 | 0.42 | Not an edge | How sure the alpha is. Below 2, it could be chance. | |
| Alpha range | −2.8% to +1.5% | −2.0% to +3.0% | Both include zero | The 95% range for the yearly alpha. | |
| Information ratio | 0.02 | −0.01 | RSP | Return against its benchmark per unit of tracking error. | |
| Tracking error | 5.4% | 6.2% | 0.0% | Not an edge | How far weekly returns stray from the benchmark, annualized. |
Computed by ETFIQ from Tiingo daily prices and ETFIQ's distribution records, 1,224 weekly returns. Cash rate: the 13-week Treasury bill.
What they share
By the books each fund has filed, RSP and SPTM hold 42% of their money in the same securities at the same weight. Holdings dated Oct 27, 2026.
half
42% in common
Only in one fund ↓
Side by side
RSP and SPTM on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.
RSP and SPTM do different jobs. What does each one do in a portfolio?
- What each follows. RSP follows S&P 500 Equal Weight Index and SPTM follows S&P Composite 1500 Index.
- Holdings in common. 42% of the weight is in the same securities (holdings dated Oct 27, 2026).
- One-year total return. Over 1 year to Oct 28, 2026 RSP returned +16.0% and SPTM +13.7% with distributions reinvested, a gap of 2.3 points.
Data as of Oct 28, 2026.
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RSP
RSP tracks the S&P 500 equal weight. Over the year to Oct 28, 2026 it returned +16.0% with distributions reinvested, against +13.7% for its benchmark, the S&P 500 Index. The prospectus expense ratio is 0.20% 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 508 positions, with the top ten at 2.7%.
SPTM
SPTM tracks an index. 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 for Oct 27, 2026, 92% of the fund by weight is stocks the S&P 500 also holds, across 1,512 positions, with the top ten at 35.2%.
Questions people ask
- Which returned more over the last year, RSP or SPTM?
- In the year to Oct 28, 2026, with distributions reinvested, RSP returned +16.0% and SPTM +13.7%.
- Which is cheaper, RSP or SPTM?
- SPTM is cheaper, by 0.17 percentage points a year. That is about $17 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, RSP against SPTM, data as of Oct 28, 2026. https://etfiq.com/compare/any/rsp-vs-sptm
ETFIQ. (Oct 28, 2026). RSP against SPTM. Retrieved from https://etfiq.com/compare/any/rsp-vs-sptm
[RSP against SPTM (ETFIQ, Oct 28, 2026)](https://etfiq.com/compare/any/rsp-vs-sptm)
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