OMC vs RSP: Correlation
How closely do Omnicom Group (OMC) and Invesco S&P 500 Equal Weight ETF (RSP) trade together? Their weekly returns over three years give a correlation of 0.55, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are OMC and RSP?
Across a 3-year window, the weekly returns of OMC and RSP correlate at 0.55, moderate. The link has loosened recently: the 1-year correlation (0.30) runs below the 3-year figure (0.55). Stretching to 5 years gives 0.55, with an annualized covariance of 203.4 %².
Few assets follow OMC as closely as RSP, which ranks #2 of 36 tracked partners. Their 12-month results are close: +16.5% for OMC against +19.2% for RSP. The rolling one-year correlation moved between 0.32 and 0.74 over the past three years, a moderate range. One caveat on sizing: OMC is 2.1 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
How is this computed?
Pearson correlation on weekly returns: ρ(A,B) = cov(rA, rB) / (σA · σB), over windows of 52, 156 and 260 weeks. Covariance is annualized (×52) and expressed in %². Full definitions on the methodology page.
OMC vs RSP: side by side
| OMC (Omnicom Group) | RSP (Invesco S&P 500 Equal Weight ETF) | |
|---|---|---|
| 1-year return | +16.5% | +19.2% |
| 5-year return | +45.6% | +53.9% |
| Volatility (ann.) | 28.0% | 13.2% |
| Beta vs S&P 500 | 0.76 | 0.77 |
| Max drawdown (3Y) | -33.3% | -17.8% |
| Market cap | $24.1B | – |
| P/E (trailing) | 237.5 | – |
| Dividend yield | 3.53% | 1.49% |
| Expense ratio | – | 0.20% |
| Assets under management | – | $97.3B |
| Sector / category | Communication Services | ETF · US Large Cap |
On the fund side, RSP sits in the Large Blend category at Invesco, with $97.3B under management, 505 holdings, a 0.20% expense ratio, a 1.49% trailing dividend yield.
Year-by-year returns
| Year | OMC | RSP |
|---|---|---|
| 2022 | +15.7% | -11.6% |
| 2023 | +9.6% | +13.7% |
| 2024 | +2.5% | +12.8% |
| 2025 | -2.6% | +11.2% |
| 2026 | +11.1% | +16.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Fund exposure
Keep in mind that RSP holds OMC at a 0.22% weight, which makes a slice of this correlation mechanical rather than coincidental.
Are OMC and RSP good diversifiers for each other?
Only partially. A correlation of 0.55 means OMC and RSP share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
FAQ
What is the correlation between OMC and RSP?
The OMC/RSP correlation stands at 0.55 on a 3-year window (1 year: 0.30, 5 years: 0.55), computed from weekly returns as of 2026-08-27.
Is RSP a good diversifier for OMC?
Only partially. A correlation of 0.55 means OMC and RSP share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.55 mean?
A reading of 0.55 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/omc-vs-rsp.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/omc-vs-rsp/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: OMC correlations · RSP correlations
