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RENT vs RNAC: Correlation

How closely do Rent the Runway, Inc. (RENT) and Cartesian Therapeutics, Inc. (RNAC) trade together? Their weekly returns over three years give a correlation of 0.39, which is moderate.

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

Correlation (3Y)
0.39
moderate
Correlation (1Y)
0.34
last 12 months
Correlation (5Y)
0.34
long-run
Ann. covariance
9004.1
%² · weekly, annualized

How correlated are RENT and RNAC?

On 3 years of weekly data the RENT/RNAC correlation comes out at 0.39, moderate. The relationship has been stable: the 1-year correlation (0.34) sits close to the 3-year figure. The 5-year figure is 0.34, and annualized covariance runs at 9004.1 %².

Among the 18 assets we track against RENT, RNAC ranks #6 by 3-year correlation. The last year tells two different stories: RNAC led by 29.6 percentage points, -35.8% for RENT against -6.2% for RNAC. One caveat on sizing: RENT is 2.0 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.

RENT vs RNAC: side by side

RENT (Rent the Runway, Inc.)RNAC (Cartesian Therapeutics, Inc.)
1-year return-35.8%-6.2%
5-year return-99.1%-92.3%
Volatility (ann.)212.1%108.2%
Beta vs S&P 5002.172.21
Max drawdown (3Y)-91.6%-85.6%
Market cap$0.1B$0.3B
P/E (trailing)0.5
Dividend yield0.00%0.00%
Sector / categoryUS ListedUS Listed
Smaller drawdown: RNAC -85.6% vs -91.6%Higher 5y return: RNAC -92.3% vs -99.1%
-50%0%+49%2025-09-052026-08-27
Both assets over the last year, indexed to 100 at the starting week. RENT · RNAC

Year-by-year returns

YearRENTRNAC
2022-62.6%-65.3%
2023-82.7%-39.0%
2024-19.5%-13.4%
2025-6.9%-59.7%
2026-54.4%+38.3%

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

Are RENT and RNAC good diversifiers for each other?

A fair diversifier. At 0.39, enough of each asset's movement is its own that the pair has smoothed outcomes historically.

FAQ

What is the correlation between RENT and RNAC?

The RENT/RNAC correlation stands at 0.39 on a 3-year window (1 year: 0.34, 5 years: 0.34), computed from weekly returns as of 2026-08-27.

Is RNAC a good diversifier for RENT?

A fair diversifier. At 0.39, enough of each asset's movement is its own that the pair has smoothed outcomes historically.

What does a correlation of 0.39 mean?

A reading of 0.39 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/rent-vs-rnac.json

RENT vs RNAC: 3-year weekly correlation 0.39RENT vs RNAC0.39

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Related comparisons

Hubs: RENT correlations · RNAC correlations