MAR vs TLSA: Correlation
How closely do Marriott International (MAR) and Tiziana Life Sciences Ltd (TLSA) trade together? Their weekly returns over three years give a correlation of -0.19, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are MAR and TLSA?
Over the past 3 years, MAR and TLSA moved with a correlation of -0.19, which is negative, meaning they tend to move in opposite directions. Little has changed lately, as the 1-year reading of -0.18 lands near the 3-year figure. Over 5 years the correlation is -0.15, and the annualized covariance of weekly returns is -426.4 %².
Among the 40 assets we track against MAR, TLSA ranks #32 by 3-year correlation. The last year tells two different stories: MAR led by 73.9 percentage points, +32.3% for MAR against -41.6% for TLSA. Note the risk asymmetry: TLSA runs 3.7 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
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.
MAR vs TLSA: side by side
| MAR (Marriott International) | TLSA (Tiziana Life Sciences Ltd) | |
|---|---|---|
| 1-year return | +32.3% | -41.6% |
| 5-year return | +173.2% | -31.6% |
| Volatility (ann.) | 24.6% | 92.1% |
| Beta vs S&P 500 | 0.97 | -0.48 |
| Max drawdown (3Y) | -30.5% | -64.4% |
| Market cap | $92.3B | $0.1B |
| P/E (trailing) | 36.7 | – |
| Dividend yield | 0.76% | 0.00% |
| Sector / category | Consumer Discretionary | US Listed |
Year-by-year returns
| Year | MAR | TLSA |
|---|---|---|
| 2022 | -9.3% | -37.5% |
| 2023 | +53.1% | -6.7% |
| 2024 | +24.9% | +25.0% |
| 2025 | +12.3% | +112.9% |
| 2026 | +14.7% | -27.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are MAR and TLSA good diversifiers for each other?
By historical standards, yes. A correlation of -0.19 means the two rarely move for the same reasons.
FAQ
What is the correlation between MAR and TLSA?
As of 2026-08-27, the correlation of weekly returns between MAR and TLSA is -0.19 over 3 years, -0.18 over 1 year and -0.15 over 5 years.
Is TLSA a good diversifier for MAR?
By historical standards, yes. A correlation of -0.19 means the two rarely move for the same reasons.
What does a correlation of -0.19 mean?
A reading of -0.19 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/mar-vs-tlsa.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/mar-vs-tlsa/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: MAR correlations · TLSA correlations
