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AMPX vs QS: Correlation

Amprius Technologies, Inc. (AMPX) and QuantumScape Corporation (QS) show a moderate relationship: their 3-year correlation of weekly returns is 0.41.

Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology

Correlation (3Y)
0.41
moderate
Correlation (1Y)
0.60
last 12 months
Correlation (5Y)
0.27
long-run
Ann. covariance
4137.4
%² · weekly, annualized

How correlated are AMPX and QS?

On 3 years of weekly data the AMPX/QS correlation comes out at 0.41, moderate. The link has tightened recently: the 1-year correlation (0.60) runs above the 3-year figure (0.41). The 5-year figure is 0.27, and annualized covariance runs at 4137.4 %².

Within AMPX's tracked universe of 15 assets, QS comes in at #4 by 3-year correlation. Correlation aside, the last 12 months split them widely, with AMPX ahead by 70.6 points (+44.0% versus -26.6%).

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 QS: side by side

AMPX (Amprius Technologies, Inc.)QS (QuantumScape Corporation)
1-year return+44.0%-26.6%
5-year returnn/a-72.4%
Volatility (ann.)111.6%90.7%
Beta vs S&P 5002.162.17
Max drawdown (3Y)-87.3%-73.5%
Market cap$1.5B$3.6B
P/E (trailing)
Dividend yield0.00%0.00%
Sector / categoryUS ListedUS Listed
Smaller drawdown: QS -73.5% vs -87.3%
-38%0%+194%2025-09-052026-08-27
Both assets over the last year, indexed to 100 at the starting week. AMPX · QS

Year-by-year returns

YearAMPXQS
2022-74.4%
2023-33.3%+22.6%
2024-47.1%-25.3%
2025+181.8%+100.8%
2026+33.2%-43.4%

Calendar-year price returns; the current year is year-to-date as of the data date above.

Are AMPX and QS good diversifiers for each other?

A fair diversifier. At 0.41, enough of each asset's movement is its own that the pair has smoothed outcomes historically.

FAQ

What is the correlation between AMPX and QS?

As of 2026-08-27, the correlation of weekly returns between AMPX and QS is 0.41 over 3 years, 0.60 over 1 year and 0.27 over 5 years.

Is QS a good diversifier for AMPX?

A fair diversifier. At 0.41, enough of each asset's movement is its own that the pair has smoothed outcomes historically.

What does a correlation of 0.41 mean?

On the −1 to +1 scale, 0.41 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

JSON API · no key required
$ curl https://www.pairbook.io/api/v1/pairs/ampx-vs-qs.json

AMPX vs QS: 3-year weekly correlation 0.41AMPX vs QS0.41

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Related comparisons

Hubs: AMPX correlations · QS correlations