SRPT vs SY: Correlation
Measured on weekly returns over the past three years, Sarepta Therapeutics, Inc. (SRPT) and So-Young International Inc. - American Depository Shares (SY) carry a correlation of -0.24, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are SRPT and SY?
On 3 years of weekly data the SRPT/SY correlation comes out at -0.24, negative, meaning they tend to move in opposite directions. Recent behaviour matches the longer record: -0.27 over 1 year against -0.24 over 3. The 5-year figure is -0.11, and annualized covariance runs at -1834.3 %².
SY is close to the least connected end of SRPT's tracked universe, ranking #10 of 13. Correlation aside, the last 12 months split them widely, with SRPT ahead by 60.5 points (+19.5% versus -41.0%).
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.
SRPT vs SY: side by side
| SRPT (Sarepta Therapeutics, Inc.) | SY (So-Young International Inc. - American Depository Shares) | |
|---|---|---|
| 1-year return | +19.5% | -41.0% |
| 5-year return | -71.5% | -54.5% |
| Volatility (ann.) | 75.7% | 99.6% |
| Beta vs S&P 500 | 1.09 | 1.08 |
| Max drawdown (3Y) | -92.7% | -77.5% |
| Market cap | $2.3B | $0.2B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | SRPT | SY |
|---|---|---|
| 2022 | +43.9% | -59.6% |
| 2023 | -25.6% | +0.0% |
| 2024 | +26.1% | -32.1% |
| 2025 | -82.3% | +219.0% |
| 2026 | +0.3% | -9.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are SRPT and SY good diversifiers for each other?
Yes: at -0.24, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between SRPT and SY?
The SRPT/SY correlation stands at -0.24 on a 3-year window (1 year: -0.27, 5 years: -0.11), computed from weekly returns as of 2026-08-27.
Is SY a good diversifier for SRPT?
Yes: at -0.24, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.24 mean?
A reading of -0.24 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/srpt-vs-sy.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/srpt-vs-sy/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: SRPT correlations · SY correlations
