ALAB vs AMT: Correlation
How closely do Astera Labs, Inc. (ALAB) and American Tower (AMT) trade together? Their weekly returns over three years give a correlation of -0.20, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ALAB and AMT?
Across a 3-year window, the weekly returns of ALAB and AMT correlate at -0.20, negative, meaning they tend to move in opposite directions. The relationship has been stable: the 1-year correlation (-0.15) sits close to the 3-year figure. Stretching to 5 years gives n/a, with an annualized covariance of -434.6 %².
By 3-year correlation, AMT places #11 of the 18 assets tracked against ALAB. Their recent paths diverged sharply: over the last 12 months ALAB outperformed by 80.7 percentage points (+69.7% for ALAB against -11.0% for AMT). Note the risk asymmetry: ALAB runs 3.1 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.
ALAB vs AMT: side by side
| ALAB (Astera Labs, Inc.) | AMT (American Tower) | |
|---|---|---|
| 1-year return | +69.7% | -11.0% |
| 5-year return | n/a | -30.2% |
| Volatility (ann.) | 84.6% | 27.1% |
| Beta vs S&P 500 | 2.90 | 0.18 |
| Max drawdown (3Y) | -63.7% | -28.4% |
| Market cap | $52.8B | $81.2B |
| P/E (trailing) | 142.8 | 24.2 |
| Dividend yield | 0.00% | 3.97% |
| Sector / category | US Listed | Real Estate |
Year-by-year returns
| Year | ALAB | AMT |
|---|---|---|
| 2022 | – | -25.7% |
| 2023 | – | +5.4% |
| 2024 | – | -12.2% |
| 2025 | +25.6% | -0.9% |
| 2026 | +82.8% | +1.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ALAB and AMT good diversifiers for each other?
Yes: at -0.20, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between ALAB and AMT?
Using weekly returns as of 2026-08-27: -0.20 over 3 years, with -0.15 over the last year and n/a over 5 years.
Is AMT a good diversifier for ALAB?
Yes: at -0.20, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.20 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/alab-vs-amt.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/alab-vs-amt/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: ALAB correlations · AMT correlations
