MCO vs QQQ: Correlation
Measured on weekly returns over the past three years, Moody's Corporation (MCO) and Invesco QQQ Trust (QQQ) carry a correlation of 0.51, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are MCO and QQQ?
On 3 years of weekly data the MCO/QQQ correlation comes out at 0.51, moderate. The past 12 months show a weaker link (0.22) than the 3-year average (0.51). The 5-year figure is 0.64, and annualized covariance runs at 257.7 %².
Within MCO's tracked universe of 53 assets, QQQ comes in at #36 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months QQQ outperformed by 25.6 percentage points (+0.7% for MCO against +26.3% for QQQ). This link changes with the market regime, having swung between 0.25 and 0.81 on a rolling one-year basis.
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.
MCO vs QQQ: side by side
| MCO (Moody's Corporation) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | +0.7% | +26.3% |
| 5-year return | +39.4% | +95.4% |
| Volatility (ann.) | 25.8% | 19.6% |
| Beta vs S&P 500 | 1.08 | 1.28 |
| Max drawdown (3Y) | -24.7% | -22.8% |
| Market cap | $88.2B | – |
| P/E (trailing) | 32.7 | – |
| Dividend yield | 0.77% | 0.44% |
| Expense ratio | – | 0.18% |
| Assets under management | – | $452.8B |
| Sector / category | Financials | ETF · US Growth & Tech |
QQQ is a Large Growth fund from Invesco: $452.8B under management, 104 holdings, a 0.18% expense ratio, a 0.44% trailing dividend yield.
Year-by-year returns
| Year | MCO | QQQ |
|---|---|---|
| 2022 | -28.0% | -32.6% |
| 2023 | +41.5% | +54.9% |
| 2024 | +22.2% | +25.6% |
| 2025 | +8.7% | +20.8% |
| 2026 | +0.3% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are MCO and QQQ good diversifiers for each other?
Only partially. A correlation of 0.51 means MCO and QQQ 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 MCO and QQQ?
The MCO/QQQ correlation stands at 0.51 on a 3-year window (1 year: 0.22, 5 years: 0.64), computed from weekly returns as of 2026-08-27.
Is QQQ a good diversifier for MCO?
Only partially. A correlation of 0.51 means MCO and QQQ share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.51 mean?
A reading of 0.51 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/mco-vs-qqq.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/mco-vs-qqq/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: MCO correlations · QQQ correlations
