BSY vs PTC: Correlation
How closely do Bentley Systems, Incorporated (BSY) and PTC Inc. (PTC) trade together? Their weekly returns over three years give a correlation of 0.57, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BSY and PTC?
Over the past 3 years, BSY and PTC moved with a correlation of 0.57, which is moderate. Little has changed lately, as the 1-year reading of 0.65 lands near the 3-year figure. Over 5 years the correlation is 0.56, and the annualized covariance of weekly returns is 482.1 %².
Among the 13 assets we track against BSY, PTC ranks #5 by 3-year correlation. Their 12-month results are close: -30.9% for BSY against -26.6% for PTC.
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.
BSY vs PTC: side by side
| BSY (Bentley Systems, Incorporated) | PTC (PTC Inc.) | |
|---|---|---|
| 1-year return | -30.9% | -26.6% |
| 5-year return | -40.5% | +20.0% |
| Volatility (ann.) | 29.4% | 28.8% |
| Beta vs S&P 500 | 0.71 | 1.02 |
| Max drawdown (3Y) | -51.3% | -48.1% |
| Market cap | $11.4B | $17.2B |
| P/E (trailing) | 40.9 | 14.7 |
| Dividend yield | 0.76% | 0.00% |
| Sector / category | US Listed | Information Technology |
Year-by-year returns
| Year | BSY | PTC |
|---|---|---|
| 2022 | -23.3% | -0.9% |
| 2023 | +41.8% | +45.8% |
| 2024 | -10.1% | +5.1% |
| 2025 | -17.8% | -5.3% |
| 2026 | -1.1% | -8.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BSY and PTC good diversifiers for each other?
Only partially. A correlation of 0.57 means BSY and PTC share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
FAQ
What is the correlation between BSY and PTC?
The BSY/PTC correlation stands at 0.57 on a 3-year window (1 year: 0.65, 5 years: 0.56), computed from weekly returns as of 2026-08-27.
Is PTC a good diversifier for BSY?
Only partially. A correlation of 0.57 means BSY and PTC share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.57 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.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/bsy-vs-ptc.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/bsy-vs-ptc/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: BSY correlations · PTC correlations
