RGEN vs VXX: Correlation
Measured on weekly returns over the past three years, Repligen Corporation (RGEN) and iPath Series B S&P 500 VIX Short-Term Futures ETN (VXX) carry a correlation of -0.28, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are RGEN and VXX?
On 3 years of weekly data the RGEN/VXX correlation comes out at -0.28, negative, meaning they tend to move in opposite directions. Little has changed lately, as the 1-year reading of -0.33 lands near the 3-year figure. The 5-year figure is -0.26, and annualized covariance runs at -836.3 %².
VXX is close to the least connected end of RGEN's tracked universe, ranking #16 of 17. Their recent paths diverged sharply: over the last 12 months RGEN outperformed by 102.8 percentage points (+53.1% for RGEN against -49.7% for VXX).
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.
RGEN vs VXX: side by side
| RGEN (Repligen Corporation) | VXX (iPath Series B S&P 500 VIX Short-Term Futures ETN) | |
|---|---|---|
| 1-year return | +53.1% | -49.7% |
| 5-year return | -35.6% | -95.6% |
| Volatility (ann.) | 49.5% | 60.9% |
| Beta vs S&P 500 | 1.35 | -3.31 |
| Max drawdown (3Y) | -50.6% | -83.3% |
| Market cap | $10.3B | – |
| P/E (trailing) | 252.8 | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | RGEN | VXX |
|---|---|---|
| 2022 | -36.1% | -23.8% |
| 2023 | +6.2% | -72.5% |
| 2024 | -19.9% | -26.2% |
| 2025 | +13.8% | -42.2% |
| 2026 | +11.1% | -31.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are RGEN and VXX good diversifiers for each other?
Yes: at -0.28, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between RGEN and VXX?
Using weekly returns as of 2026-08-27: -0.28 over 3 years, with -0.33 over the last year and -0.26 over 5 years.
Is VXX a good diversifier for RGEN?
Yes: at -0.28, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.28 mean?
On the −1 to +1 scale, -0.28 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/rgen-vs-vxx.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/rgen-vs-vxx/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: RGEN correlations · VXX correlations
