Data as of Oct 28, 2026.
RSP vs SPYM: Differences, Returns & Fees
Over the year to Oct 28, 2026, RSP returned +16.0% to SPYM's +13.7%; 44% 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 $185.0bn for State Street SPDR Portfolio S&P 500 ETF.
Pair scorecard
SPYM costs 0.18 points a year less; their one-year returns differ by 2.3 points; SPYM is 1.9 times larger.
| Measure | RSP | SPYM |
|---|---|---|
| Return | ||
| Total return, 1 year | +16.0% | +13.7% |
| Benchmark | ||
| What it tracks | S&P 500 Equal Weight Index | S&P 500 Index |
| Cost and size | ||
| Expense ratio | 0.20% | 0.02% |
| Net assets, as of Oct 27, 2026 | $99.8bn | $185.0bn |
| Holdings | ||
| Holdings in common | 44% | |
| Top ten holdings, share of the fund | 2.7% | 38.1% |
Holdings in common uses holdings dated Oct 27, 2026. Method
Risk and return
Nov 25, 2005 to Oct 23, 2026 · 1,091 weekly returns · each against IVVSPYM returned more: +793.5% to +624.5%. SPYM swung less: 17.2% to 19.4%. SPYM fell slightly less at its worst: −53.9% to −59.6%.
Full scorecard
19 measures, with how each is measured Open ↓
| Measure | RSP | SPYM | IVV | Edge | How it is measured |
|---|---|---|---|---|---|
| Return | |||||
| Total return | +624.5% | +793.5% | SPYM | Price change plus distributions, reinvested. | |
| Annualized | +9.9% | +11.0% | SPYM | Total return as a yearly rate. | |
| Price return | +417.9% | +516.4% | SPYM | Price change alone, distributions left out. | |
| Risk | |||||
| Volatility | 19.4% | 17.2% | SPYM | Spread of weekly returns, annualized. Lower is steadier. | |
| Downside deviation | 13.7% | 12.1% | SPYM | Like volatility, counting only weeks below the Treasury bill rate. | |
| Max drawdown | −59.6% | −53.9% | SPYM (slight) | Deepest fall from a high to the low after it. | |
| Upside capture | 101.9% | 94.1% | 100.0% | RSP (slight) | Share of its benchmark's rise caught in the weeks it rose. |
| Downside capture | 102.4% | 96.9% | 100.0% | SPYM (slight) | Share of its benchmark's fall taken in the weeks it fell. Lower is better. |
| Beta | 1.07 | 0.96 | 1.00 | SPYM lower | How far it moves for each 1% its benchmark moves. |
| R squared | 0.92 | 0.95 | 1.00 | Not an edge | Share of its weekly moves its benchmark explains. |
| Risk-adjusted | |||||
| Sharpe | 0.49 | 0.59 | SPYM | Return above Treasury bills per unit of volatility. | |
| Sortino | 0.70 | 0.84 | SPYM | Return above Treasury bills per unit of downside deviation. | |
| Treynor | 0.090 | 0.106 | 0.102 | SPYM | Return above Treasury bills per unit of beta. |
| Calmar | 0.17 | 0.20 | SPYM | Annualized return divided by the max drawdown. | |
| Against the benchmark | |||||
| Benchmark | IVV | IVV | IVV | The ETF each fund is measured against. | |
| Alpha | −1.3% a year | +0.4% a year | 0.0% | Not significant | Yearly return beyond what its beta to the benchmark predicts. |
| Alpha t-stat | −1.06 | 0.53 | Not an edge | How sure the alpha is. Below 2, it could be chance. | |
| Alpha range | −3.6% to +1.1% | −1.2% to +2.0% | Both include zero | The 95% range for the yearly alpha. | |
| Information ratio | −0.11 | 0.00 | SPYM | Return against its benchmark per unit of tracking error. | |
| Tracking error | 5.6% | 3.8% | 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, 1,091 weekly returns. Cash rate: the 13-week Treasury bill.
What they share
By the books each fund has filed, RSP and SPYM hold 44% of their money in the same securities at the same weight. Holdings dated Oct 27, 2026.
half
44% in common
Only in one fund ↓
Side by side
RSP and SPYM on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.
RSP and SPYM do different jobs. What does each one do in a portfolio?
- What each follows. RSP follows S&P 500 Equal Weight Index and SPYM follows S&P 500 Index.
- Holdings in common. 44% 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 SPYM +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%.
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%.
Questions people ask
- Which returned more over the last year, RSP or SPYM?
- In the year to Oct 28, 2026, with distributions reinvested, RSP returned +16.0% and SPYM +13.7%.
- Which is cheaper, RSP or SPYM?
- SPYM is cheaper, by 0.18 percentage points a year. That is about $18 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 SPYM, data as of Oct 28, 2026. https://etfiq.com/compare/any/rsp-vs-spym
ETFIQ. (Oct 28, 2026). RSP against SPYM. Retrieved from https://etfiq.com/compare/any/rsp-vs-spym
[RSP against SPYM (ETFIQ, Oct 28, 2026)](https://etfiq.com/compare/any/rsp-vs-spym)
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