ACHR vs. EOSE

Last updated Jun 13, 2026

ACHR (Archer Aviation Inc.) and EOSE (Eos Energy Enterprises Inc) are both stocks. Both are in the Industrials sector — ACHR in Aerospace & Defense, EOSE in Electrical Equipment & Parts. Over the past 5 years, ACHR returned -12.65%/yr vs -21.15%/yr for EOSE. At a 0.34 correlation, their price movements are largely independent.

Performance

ACHR vs. EOSE - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Archer Aviation Inc. (ACHR) and Eos Energy Enterprises Inc (EOSE). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, ACHR achieves a -32.45% return, which is significantly higher than EOSE's -47.12% return.

ACHR

• 1D: -4.15%
• 1M: -22.09%
• YTD: -32.45%
• 6M: -38.80%
• 1Y: -56.69%
• 3Y*: 4.91%
• 5Y*: -12.65%
• 10Y*: —

EOSE

• 1D: -2.26%
• 1M: -26.81%
• YTD: -47.12%
• 6M: -59.16%
• 1Y: 45.67%
• 3Y*: 23.72%
• 5Y*: -21.15%
• 10Y*: —

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

ACHR vs. EOSE - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020
ACHR Archer Aviation Inc.	-32.45%	-22.87%	58.79%	228.34%	-69.04%	-39.96%	-0.89%
EOSE Eos Energy Enterprises Inc	-47.12%	135.80%	345.87%	-26.35%	-80.32%	-63.92%	43.13%

Correlation

The correlation between ACHR and EOSE is 0.49, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.49
Correlation (3Y) Calculated over the trailing 3-year period	0.39
Correlation (5Y) Calculated over the trailing 5-year period	0.35
Correlation (All Time) Calculated using the full available price history since Dec 18, 2020	0.34

The correlation between ACHR and EOSE shifts across timeframes, from 0.34 (all time) to 0.49 (1 year), reflecting how their relationship changes across market environments.

Fundamentals

Market Cap ACHR : $3.90B EOSE : $3.30B
EPS ACHR : -$1.36 EOSE : -$1.45
PS Ratio ACHR : 1.46K EOSE : 12.40
Total Revenue (TTM) ACHR : $1.90M EOSE : $160.71M
Gross Profit (TTM) ACHR : $300.00K EOSE : -$163.73M
EBITDA (TTM) ACHR : -$712.00M EOSE : -$858.77M

Return for Risk

ACHR vs. EOSE — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

ACHR

ACHR Risk / Return Rank: 10
ACHR Sharpe Ratio Rank: 10
ACHR Sortino Ratio Rank: 10
ACHR Omega Ratio Rank: 12
ACHR Calmar Ratio Rank: 7
ACHR Martin Ratio Rank: 10

EOSE

EOSE Risk / Return Rank: 60
EOSE Sharpe Ratio Rank: 58
EOSE Sortino Ratio Rank: 66
EOSE Omega Ratio Rank: 64
EOSE Calmar Ratio Rank: 57
EOSE Martin Ratio Rank: 56

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

ACHR vs. EOSE - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Archer Aviation Inc. (ACHR) and Eos Energy Enterprises Inc (EOSE). 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.

	ACHR	EOSE	Difference
Sharpe ratio: Return per unit of total volatility	-0.80	0.40	-1.20
Sortino ratio: Return per unit of downside risk	-1.16	1.42	-2.57
Omega ratio: Gain probability vs. loss probability	0.87	1.17	-0.30
Calmar ratio: Return relative to maximum drawdown	-0.89	0.60	-1.49
Martin ratio: Return relative to average drawdown	-1.39	1.16	-2.54

ACHR vs. EOSE - Sharpe Ratio Comparison

The current ACHR Sharpe Ratio is -0.80, which is lower than the EOSE Sharpe Ratio of 0.40. The chart below compares the historical Sharpe Ratios of ACHR and EOSE, 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

ACHR vs. EOSE - Drawdown Comparison

The maximum ACHR drawdown since its inception was -90.49%, smaller than the maximum EOSE drawdown of -97.88%. Use the drawdown chart below to compare losses from any high point for ACHR and EOSE.

Drawdown Indicators

	ACHR	EOSE	Difference
Max Drawdown Largest peak-to-trough decline	-90.49%	-97.88%	+7.39%
Max Drawdown (1Y) Largest decline over 1 year	-63.78%	-77.10%	+13.32%
Max Drawdown (3Y) Largest decline over 3 years	-63.78%	-87.18%	+23.40%
Max Drawdown (5Y) Largest decline over 5 years	-84.00%	-96.77%	+12.77%
Current Drawdown Current decline from peak	-70.36%	-80.09%	+9.73%
Average Drawdown Average peak-to-trough decline	-62.48%	-72.37%	+9.89%
Ulcer Index Depth and duration of drawdowns from previous peaks	41.04%	39.66%	+1.38%

Volatility

ACHR vs. EOSE - Volatility Comparison

The current volatility for Archer Aviation Inc. (ACHR) is 21.42%, while Eos Energy Enterprises Inc (EOSE) has a volatility of 31.08%. This indicates that ACHR experiences smaller price fluctuations and is considered to be less risky than EOSE based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ACHR	EOSE	Difference
Volatility (1M) Calculated over the trailing 1-month period	21.42%	31.08%	-9.66%
Volatility (6M) Calculated over the trailing 6-month period	44.68%	91.90%	-47.22%
Volatility (1Y) Calculated over the trailing 1-year period	70.77%	115.13%	-44.36%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	84.32%	117.06%	-32.74%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	82.16%	112.92%	-30.76%

Dividends

ACHR vs. EOSE - Dividend Comparison

Neither ACHR nor EOSE has paid dividends to shareholders.

Tickers have no history of dividend payments

Financials

Frequently Asked Questions

Can I hold both ACHR and EOSE in my portfolio?

ACHR and EOSE have a correlation of 0.49, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ACHR or EOSE?

EOSE has higher volatility (31.08%) compared to ACHR (21.42%). In terms of maximum drawdown, ACHR dropped -90.49% vs EOSE's -97.88%.

Which has better risk-adjusted returns?

EOSE currently has the higher Sharpe Ratio (0.40 vs -0.80), 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.