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IRTC vs VXX: Correlation

How closely do iRhythm Holdings, Inc. (IRTC) and iPath Series B S&P 500 VIX Short-Term Futures ETN (VXX) trade together? Their weekly returns over three years give a correlation of -0.22, which is negative.

Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology

Correlation (3Y)
-0.22
negative
Correlation (1Y)
-0.18
last 12 months
Correlation (5Y)
-0.18
long-run
Ann. covariance
-656.6
%² · weekly, annualized

How correlated are IRTC and VXX?

Over the past 3 years, IRTC and VXX moved with a correlation of -0.22, which is negative, meaning they tend to move in opposite directions. The relationship has been stable: the 1-year correlation (-0.18) sits close to the 3-year figure. Over 5 years the correlation is -0.18, and the annualized covariance of weekly returns is -656.6 %².

Among the 10 assets we track against IRTC, VXX sits near the bottom by co-movement, at rank #10. Correlation aside, the last 12 months split them widely, with IRTC ahead by 18.2 points (-31.5% versus -49.7%).

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.

IRTC vs VXX: side by side

IRTC (iRhythm Holdings, Inc.)VXX (iPath Series B S&P 500 VIX Short-Term Futures ETN)
1-year return-31.5%-49.7%
5-year return+150.2%-95.6%
Volatility (ann.)50.1%60.9%
Beta vs S&P 5000.87-3.31
Max drawdown (3Y)-53.8%-83.3%
Market cap$3.8B
P/E (trailing)
Dividend yield0.00%0.00%
Sector / categoryUS ListedUS Listed
Smaller drawdown: IRTC -53.8% vs -83.3%Higher 5y return: IRTC +150.2% vs -95.6%
-49%0%+11%2025-09-052026-08-27
Both assets over the last year, indexed to 100 at the starting week. IRTC · VXX

Year-by-year returns

YearIRTCVXX
2022-20.4%-23.8%
2023+14.3%-72.5%
2024-15.8%-26.2%
2025+96.8%-42.2%
2026-34.4%-31.6%

Calendar-year price returns; the current year is year-to-date as of the data date above.

Are IRTC and VXX good diversifiers for each other?

By historical standards, yes. A correlation of -0.22 means the two rarely move for the same reasons.

FAQ

What is the correlation between IRTC and VXX?

Using weekly returns as of 2026-08-27: -0.22 over 3 years, with -0.18 over the last year and -0.18 over 5 years.

Is VXX a good diversifier for IRTC?

By historical standards, yes. A correlation of -0.22 means the two rarely move for the same reasons.

What does a correlation of -0.22 mean?

A reading of -0.22 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

JSON API · no key required
$ curl https://www.pairbook.io/api/v1/pairs/irtc-vs-vxx.json

IRTC vs VXX: 3-year weekly correlation -0.22IRTC vs VXX-0.22

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Hubs: IRTC correlations · VXX correlations