SY vs VHC: Correlation
How closely do So-Young International Inc. - American Depository Shares (SY) and VirnetX Holding Corp (VHC) trade together? Their weekly returns over three years give a correlation of 0.31, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are SY and VHC?
Across a 3-year window, the weekly returns of SY and VHC correlate at 0.31, moderate. Lately the two have drifted apart, with the 1-year correlation at -0.08 versus 0.31 over 3 years. Stretching to 5 years gives 0.29, with an annualized covariance of 3185.1 %².
By 3-year correlation, VHC places #7 of the 13 assets tracked against SY. Their recent paths diverged sharply: over the last 12 months VHC outperformed by 32.2 percentage points (-41.0% for SY against -8.8% for VHC).
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.
SY vs VHC: side by side
| SY (So-Young International Inc. - American Depository Shares) | VHC (VirnetX Holding Corp) | |
|---|---|---|
| 1-year return | -41.0% | -8.8% |
| 5-year return | -54.5% | -57.1% |
| Volatility (ann.) | 99.6% | 104.0% |
| Beta vs S&P 500 | 1.08 | 1.09 |
| Max drawdown (3Y) | -77.5% | -60.7% |
| Market cap | $0.2B | $0.1B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | SY | VHC |
|---|---|---|
| 2022 | -59.6% | -50.0% |
| 2023 | +0.0% | -21.3% |
| 2024 | -32.1% | +12.1% |
| 2025 | +219.0% | +112.6% |
| 2026 | -9.4% | -25.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are SY and VHC good diversifiers for each other?
A fair diversifier. At 0.31, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between SY and VHC?
The SY/VHC correlation stands at 0.31 on a 3-year window (1 year: -0.08, 5 years: 0.29), computed from weekly returns as of 2026-08-27.
Is VHC a good diversifier for SY?
A fair diversifier. At 0.31, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.31 mean?
On the −1 to +1 scale, 0.31 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/sy-vs-vhc.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/sy-vs-vhc/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: SY correlations · VHC correlations
