SLDP vs. AMPX

Last updated Aug 1, 2026

SLDP (Solid Power, Inc.) and AMPX (Amprius Technologies Inc.) are both stocks. Both operate in the Electrical Equipment & Parts industry within the Industrials sector. Over the past 3 years, SLDP returned -10.36%/yr vs 9.36%/yr for AMPX. Their 0.37 correlation means their historical movements had little consistent relationship.

Performance

SLDP vs. AMPX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Solid Power, Inc. (SLDP) and Amprius Technologies Inc. (AMPX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SLDP achieves a -51.53% return, which is significantly lower than AMPX's 21.67% return.

SLDP

• 1D: -0.24%
• 1M: -18.25%
• 6M: -54.02%
• YTD: -51.53%
• 1Y: -33.76%
• 3Y*: -10.36%
• 5Y*: -26.98%
• 10Y*: —
• ALL TIME*: -26.19%

AMPX

• 1D: 1.37%
• 1M: -22.46%
• 6M: -22.83%
• YTD: 21.67%
• 1Y: 50.94%
• 3Y*: 9.36%
• 5Y*: —
• 10Y*: —
• ALL TIME*: 1.65%

*Multi-year figures are annualized to reflect compound growth (CAGR)

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
AMPX Amprius Technologies Inc.	$51.41M	$65.22M	$125.73M
SLDP Solid Power, Inc.	$8.45M	$8.87M	$15.65M

SLDP vs. AMPX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022
SLDP Solid Power, Inc.	-51.53%	124.87%	30.34%	-42.91%	-61.16%
AMPX Amprius Technologies Inc.	21.67%	181.79%	-47.07%	-33.29%	-11.99%

Correlation

The correlation between SLDP and AMPX is 0.59, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.59
Correlation (3Y) Balances recent behavior with more history.	0.42
Correlation (All Time) Calculated using the full available price history since Sep 15, 2022	0.37

Over the past year, SLDP and AMPX have become more correlated (0.59) than their long-term average of 0.37, meaning their price movements have been converging.

Fundamentals

Market Cap SLDP : $463.47M AMPX : $1.36B
EPS SLDP : -$0.75 AMPX : -$0.30
PS Ratio SLDP : 14.15 AMPX : 14.03
PB Ratio SLDP : 0.00 AMPX : 12.02
Total Revenue (TTM) SLDP : $17.84M AMPX : $90.26M
Gross Profit (TTM) SLDP : -$2.22M AMPX : $16.37M
EBITDA (TTM) SLDP : -$63.00M AMPX : -$17.72M

Return for Risk

SLDP vs. AMPX — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

SLDP

SLDP Risk / Return Rank: 32
SLDP Sharpe Ratio Rank: 30
SLDP Sortino Ratio Rank: 37
SLDP Omega Ratio Rank: 36
SLDP Calmar Ratio Rank: 28
SLDP Martin Ratio Rank: 30

AMPX

AMPX Risk / Return Rank: 61
AMPX Sharpe Ratio Rank: 58
AMPX Sortino Ratio Rank: 66
AMPX Omega Ratio Rank: 62
AMPX Calmar Ratio Rank: 60
AMPX Martin Ratio Rank: 61

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

SLDP vs. AMPX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Solid Power, Inc. (SLDP) and Amprius Technologies Inc. (AMPX). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	SLDP	AMPX	Difference
Sharpe ratio: Return per unit of total volatility	-0.33	0.36	-0.69
Sortino ratio: Return per unit of downside risk	0.15	1.26	-1.11
Omega ratio: Gain probability vs. loss probability	1.02	1.14	-0.13
Calmar ratio: Return relative to maximum drawdown	-0.46	0.61	-1.08
Martin ratio: Return relative to average drawdown	-0.71	1.50	-2.21

SLDP vs. AMPX - Sharpe Ratio Comparison

The current SLDP Sharpe Ratio is -0.33, which is lower than the AMPX Sharpe Ratio of 0.36. The chart below compares the historical Sharpe Ratios of SLDP and AMPX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

SLDP vs. AMPX - Drawdown Comparison

The maximum SLDP drawdown since its inception was -93.46%, roughly equal to the maximum AMPX drawdown of -94.49%. Use the drawdown chart below to compare losses from any high point for SLDP and AMPX.

Drawdown Indicators

	SLDP	AMPX	Difference
Max Drawdown Largest peak-to-trough decline	-93.46%	-94.49%	+1.03%
Max Drawdown (1Y) Largest decline over 1 year	-76.50%	-63.16%	-13.34%
Max Drawdown (3Y) Largest decline over 3 years	-76.50%	-90.22%	+13.72%
Max Drawdown (5Y) Largest decline over 5 years	-93.46%	—	—
Current Drawdown Current decline from peak	-85.46%	-58.10%	-27.36%
Average Drawdown Average peak-to-trough decline	-69.06%	-54.70%	-14.36%
Ulcer Index Depth and duration of drawdowns from previous peaks	50.07%	25.68%	+24.39%

Volatility

SLDP vs. AMPX - Volatility Comparison

The current volatility for Solid Power, Inc. (SLDP) is 17.17%, while Amprius Technologies Inc. (AMPX) has a volatility of 28.32%. This indicates that SLDP experiences smaller price fluctuations and is considered to be less risky than AMPX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SLDP	AMPX	Difference
Volatility (1M) Calculated over the trailing 1-month period	17.17%	28.32%	-11.15%
Volatility (6M) Calculated over the trailing 6-month period	45.91%	81.25%	-35.34%
Volatility (1Y) Calculated over the trailing 1-year period	107.67%	106.81%	+0.86%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	87.02%	127.82%	-40.80%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	85.77%	127.82%	-42.05%

Dividends

SLDP vs. AMPX - Dividend Comparison

Neither SLDP nor AMPX has paid dividends to shareholders.

Tickers have no history of dividend payments

Financials

Frequently Asked Questions

Can I hold both SLDP and AMPX in my portfolio?

SLDP and AMPX have a correlation of 0.59, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, SLDP or AMPX?

AMPX has higher volatility (28.32%) compared to SLDP (17.17%). In terms of maximum drawdown, SLDP dropped -93.46% vs AMPX's -94.49%.

Which has better risk-adjusted returns?

AMPX currently has the higher Sharpe Ratio (0.36 vs -0.33), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.