NVCR vs SPY: Correlation
How closely do NovoCure Limited (NVCR) and SPDR S&P 500 ETF Trust (SPY) 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 NVCR and SPY?
On 3 years of weekly data the NVCR/SPY correlation comes out at 0.31, moderate. The relationship has been stable: the 1-year correlation (0.27) sits close to the 3-year figure. The 5-year figure is 0.35, and annualized covariance runs at 315.9 %².
SPY is close to the least connected end of NVCR's tracked universe, ranking #9 of 12. The last year tells two different stories: NVCR led by 30.4 percentage points, +51.0% for NVCR against +20.6% for SPY. Risk is not evenly split, since NVCR carries 4.8 times the volatility of the other side.
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.
NVCR vs SPY: side by side
| NVCR (NovoCure Limited) | SPY (SPDR S&P 500 ETF Trust) | |
|---|---|---|
| 1-year return | +51.0% | +20.6% |
| 5-year return | -86.6% | +82.4% |
| Volatility (ann.) | 70.1% | 14.5% |
| Beta vs S&P 500 | 1.51 | 1.00 |
| Max drawdown (3Y) | -70.0% | -18.8% |
| Market cap | $2.1B | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 1.01% |
| Expense ratio | – | 0.09% |
| Assets under management | – | $795.3B |
| Sector / category | US Listed | ETF · US Large Cap |
SPY is a Large Blend fund from State Street Investment Management: $795.3B under management, 504 holdings, a 0.09% expense ratio, a 1.01% trailing dividend yield.
Year-by-year returns
| Year | NVCR | SPY |
|---|---|---|
| 2022 | -2.3% | -18.2% |
| 2023 | -79.6% | +26.2% |
| 2024 | +99.6% | +24.9% |
| 2025 | -56.6% | +17.7% |
| 2026 | +39.1% | +13.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are NVCR and SPY good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.31 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between NVCR and SPY?
Using weekly returns as of 2026-08-27: 0.31 over 3 years, with 0.27 over the last year and 0.35 over 5 years.
Is SPY a good diversifier for NVCR?
Yes, to a useful degree: a correlation of 0.31 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.31 mean?
Correlation ranges from −1 to +1. Values near +1 mean two assets move together, near 0 that they move independently, and negative values that they tend to move in opposite directions. It measures co-movement, not performance.
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Related comparisons
Hubs: NVCR correlations · SPY correlations
