INTS vs PEN: Correlation
How closely do Intensity Therapeutics, Inc. (INTS) and Penumbra, Inc. (PEN) trade together? Their weekly returns over three years give a correlation of -0.22, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are INTS and PEN?
Across a 3-year window, the weekly returns of INTS and PEN correlate at -0.22, negative, meaning they tend to move in opposite directions. The link has loosened recently: the 1-year correlation (-0.44) runs below the 3-year figure (-0.22). Stretching to 5 years gives n/a, with an annualized covariance of -1375.9 %².
Among the 28 assets we track against INTS, PEN ranks #13 by 3-year correlation. The last year tells two different stories: PEN led by 63.7 percentage points, -43.4% for INTS against +20.3% for PEN. Note the risk asymmetry: INTS runs 4.8 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.
INTS vs PEN: side by side
| INTS (Intensity Therapeutics, Inc.) | PEN (Penumbra, Inc.) | |
|---|---|---|
| 1-year return | -43.4% | +20.3% |
| 5-year return | n/a | +18.7% |
| Volatility (ann.) | 173.1% | 36.0% |
| Beta vs S&P 500 | 0.52 | 0.30 |
| Max drawdown (3Y) | -98.5% | -45.5% |
| Market cap | – | $12.6B |
| P/E (trailing) | – | 79.5 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | INTS | PEN |
|---|---|---|
| 2022 | – | -22.6% |
| 2023 | – | +13.1% |
| 2024 | -79.5% | -5.6% |
| 2025 | -76.7% | +30.9% |
| 2026 | -58.3% | +3.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are INTS and PEN good diversifiers for each other?
Yes: at -0.22, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between INTS and PEN?
The INTS/PEN correlation stands at -0.22 on a 3-year window (1 year: -0.44, 5 years: n/a), computed from weekly returns as of 2026-08-27.
Is PEN a good diversifier for INTS?
Yes: at -0.22, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.22 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/ints-vs-pen.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/ints-vs-pen/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: INTS correlations · PEN correlations
