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RAIL vs VXX: Correlation

Freightcar America, Inc. (RAIL) and iPath Series B S&P 500 VIX Short-Term Futures ETN (VXX) show a negative relationship: their 3-year correlation of weekly returns is -0.32.

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

Correlation (3Y)
-0.32
negative
Correlation (1Y)
-0.15
last 12 months
Correlation (5Y)
-0.27
long-run
Ann. covariance
-1446.5
%² · weekly, annualized

How correlated are RAIL and VXX?

On 3 years of weekly data the RAIL/VXX correlation comes out at -0.32, negative, meaning they tend to move in opposite directions. Lately the two have moved closer together, with the 1-year correlation at -0.15 versus -0.32 over 3 years. The 5-year figure is -0.27, and annualized covariance runs at -1446.5 %².

Out of 11 assets tracked against RAIL, VXX lands near the bottom at #10. Correlation aside, the last 12 months split them widely, with RAIL ahead by 33.6 points (-16.1% 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.

RAIL vs VXX: side by side

RAIL (Freightcar America, Inc.)VXX (iPath Series B S&P 500 VIX Short-Term Futures ETN)
1-year return-16.1%-49.7%
5-year return+36.6%-95.6%
Volatility (ann.)75.3%60.9%
Beta vs S&P 5001.84-3.31
Max drawdown (3Y)-71.7%-83.3%
Market cap$0.2B
P/E (trailing)
Dividend yield0.00%0.00%
Sector / categoryUS ListedUS Listed
Smaller drawdown: RAIL -71.7% vs -83.3%Higher 5y return: RAIL +36.6% vs -95.6%
-49%0%+66%2025-09-052026-08-27
Both assets over the last year, indexed to 100 at the starting week. RAIL · VXX

Year-by-year returns

YearRAILVXX
2022-13.3%-23.8%
2023-15.6%-72.5%
2024+231.9%-26.2%
2025+23.5%-42.2%
2026-34.6%-31.6%

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

Are RAIL and VXX good diversifiers for each other?

Yes. With a correlation of -0.32, RAIL and VXX have moved largely independently, which makes them a genuinely diversifying pair by historical standards.

FAQ

What is the correlation between RAIL and VXX?

The RAIL/VXX correlation stands at -0.32 on a 3-year window (1 year: -0.15, 5 years: -0.27), computed from weekly returns as of 2026-08-27.

Is VXX a good diversifier for RAIL?

Yes. With a correlation of -0.32, RAIL and VXX have moved largely independently, which makes them a genuinely diversifying pair by historical standards.

What does a correlation of -0.32 mean?

A reading of -0.32 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/rail-vs-vxx.json

RAIL vs VXX: 3-year weekly correlation -0.32RAIL vs VXX-0.32

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Related comparisons

Hubs: RAIL correlations · VXX correlations