CMCSA vs VXX: Correlation
Measured on weekly returns over the past three years, Comcast (CMCSA) and iPath Series B S&P 500 VIX Short-Term Futures ETN (VXX) carry a correlation of -0.21, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CMCSA and VXX?
Over the past 3 years, CMCSA and VXX moved with a correlation of -0.21, which is negative, meaning they tend to move in opposite directions. Recent behaviour matches the longer record: -0.11 over 1 year against -0.21 over 3. Over 5 years the correlation is -0.24, and the annualized covariance of weekly returns is -310.7 %².
By 3-year correlation, VXX places #34 of the 39 assets tracked against CMCSA. Their recent paths diverged sharply: over the last 12 months CMCSA outperformed by 37.1 percentage points (-12.6% for CMCSA against -49.7% for VXX). One caveat on sizing: VXX is 2.6 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.
CMCSA vs VXX: side by side
| CMCSA (Comcast) | VXX (iPath Series B S&P 500 VIX Short-Term Futures ETN) | |
|---|---|---|
| 1-year return | -12.6% | -49.7% |
| 5-year return | -44.5% | -95.6% |
| Volatility (ann.) | 23.8% | 60.9% |
| Beta vs S&P 500 | 0.48 | -3.31 |
| Max drawdown (3Y) | -44.9% | -83.3% |
| Market cap | $93.7B | – |
| P/E (trailing) | 8.7 | – |
| Dividend yield | 4.85% | 0.00% |
| Sector / category | Communication Services | US Listed |
Year-by-year returns
| Year | CMCSA | VXX |
|---|---|---|
| 2022 | -28.7% | -23.8% |
| 2023 | +29.1% | -72.5% |
| 2024 | -11.8% | -26.2% |
| 2025 | -17.3% | -42.2% |
| 2026 | -2.2% | -31.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CMCSA and VXX good diversifiers for each other?
Yes: at -0.21, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between CMCSA and VXX?
The CMCSA/VXX correlation stands at -0.21 on a 3-year window (1 year: -0.11, 5 years: -0.24), computed from weekly returns as of 2026-08-27.
Is VXX a good diversifier for CMCSA?
Yes: at -0.21, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.21 mean?
A reading of -0.21 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/cmcsa-vs-vxx.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/cmcsa-vs-vxx/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: CMCSA correlations · VXX correlations
