AMPX vs OUST: Correlation
How closely do Amprius Technologies, Inc. (AMPX) and Ouster, Inc. (OUST) trade together? Their weekly returns over three years give a correlation of 0.42, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are AMPX and OUST?
Across a 3-year window, the weekly returns of AMPX and OUST correlate at 0.42, moderate. The link has tightened recently: the 1-year correlation (0.52) runs above the 3-year figure (0.42). Stretching to 5 years gives 0.27, with an annualized covariance of 4798.8 %².
OUST is one of the assets that tracks AMPX most closely: it ranks #3 out of the 15 assets we track against AMPX. Their recent paths diverged sharply: over the last 12 months AMPX outperformed by 23.3 percentage points (+44.0% for AMPX against +20.7% for OUST).
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.
AMPX vs OUST: side by side
| AMPX (Amprius Technologies, Inc.) | OUST (Ouster, Inc.) | |
|---|---|---|
| 1-year return | +44.0% | +20.7% |
| 5-year return | n/a | -56.2% |
| Volatility (ann.) | 111.6% | 102.7% |
| Beta vs S&P 500 | 2.16 | 2.63 |
| Max drawdown (3Y) | -87.3% | -64.0% |
| Market cap | $1.5B | $2.6B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | AMPX | OUST |
|---|---|---|
| 2022 | – | -83.4% |
| 2023 | -33.3% | -11.1% |
| 2024 | -47.1% | +59.3% |
| 2025 | +181.8% | +77.1% |
| 2026 | +33.2% | +68.9% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are AMPX and OUST good diversifiers for each other?
Reasonably. At 0.42, AMPX and OUST keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between AMPX and OUST?
Using weekly returns as of 2026-08-27: 0.42 over 3 years, with 0.52 over the last year and 0.27 over 5 years.
Is OUST a good diversifier for AMPX?
Reasonably. At 0.42, AMPX and OUST keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.42 mean?
On the −1 to +1 scale, 0.42 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/ampx-vs-oust.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/ampx-vs-oust/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: AMPX correlations · OUST correlations
