ACHR vs. AA

Last updated Jun 9, 2026

ACHR (Archer Aviation Inc.) and AA (Alcoa Corporation) are both stocks. ACHR operates in Aerospace & Defense (Industrials), while AA operates in Aluminum (Basic Materials). Over the past 5 years, ACHR returned -10.82%/yr vs 15.22%/yr for AA. At a 0.26 correlation, their price movements are largely independent.

Performance

ACHR vs. AA - Performance Comparison

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

Returns By Period

In the year-to-date period, ACHR achieves a -23.80% return, which is significantly lower than AA's 38.65% return.

ACHR

• 1D: 3.43%
• 1M: -11.57%
• YTD: -23.80%
• 6M: -33.45%
• 1Y: -43.77%
• 3Y*: 20.81%
• 5Y*: -10.82%
• 10Y*: —

AA

• 1D: 2.16%
• 1M: 16.43%
• YTD: 38.65%
• 6M: 65.72%
• 1Y: 164.65%
• 3Y*: 29.24%
• 5Y*: 15.22%
• 10Y*: —

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

ACHR vs. AA - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020
ACHR Archer Aviation Inc.	-23.80%	-22.87%	58.79%	228.34%	-69.04%	-39.96%	-0.89%
AA Alcoa Corporation	38.65%	42.46%	12.43%	-24.33%	-23.12%	159.05%	3.92%

Correlation

The correlation between ACHR and AA is 0.33, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.33
Correlation (3Y) Calculated over the trailing 3-year period	0.35
Correlation (5Y) Calculated over the trailing 5-year period	0.27
Correlation (All Time) Calculated using the full available price history since Dec 18, 2020	0.26

Fundamentals

Market Cap ACHR : $4.39B AA : $19.36B
EPS ACHR : -$1.36 AA : $3.92
PS Ratio ACHR : 1.65K AA : 1.52
PB Ratio ACHR : 2.11 AA : 2.84
Total Revenue (TTM) ACHR : $1.90M AA : $12.66B
Gross Profit (TTM) ACHR : $300.00K AA : $948.00M
EBITDA (TTM) ACHR : -$712.00M AA : $1.70B

Return for Risk

ACHR vs. AA — Risk / Return Rank

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

ACHR

ACHR Risk / Return Rank: 18
ACHR Sharpe Ratio Rank: 15
ACHR Sortino Ratio Rank: 18
ACHR Omega Ratio Rank: 19
ACHR Calmar Ratio Rank: 17
ACHR Martin Ratio Rank: 19

AA

AA Risk / Return Rank: 95
AA Sharpe Ratio Rank: 96
AA Sortino Ratio Rank: 92
AA Omega Ratio Rank: 90
AA Calmar Ratio Rank: 98
AA Martin Ratio Rank: 97

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. AA - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Archer Aviation Inc. (ACHR) and Alcoa Corporation (AA). 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.

	ACHR	AA	Difference
Sharpe ratio: Return per unit of total volatility	-0.62	3.11	-3.73
Sortino ratio: Return per unit of downside risk	-0.65	3.46	-4.10
Omega ratio: Gain probability vs. loss probability	0.93	1.41	-0.48
Calmar ratio: Return relative to maximum drawdown	-0.69	10.49	-11.18
Martin ratio: Return relative to average drawdown	-1.08	25.51	-26.59
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

ACHR vs. AA - Sharpe Ratio Comparison

The current ACHR Sharpe Ratio is -0.62, which is lower than the AA Sharpe Ratio of 3.11. The chart below compares the historical Sharpe Ratios of ACHR and AA, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	ACHR	AA	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.62	3.11	-3.73
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.13	0.27	-0.40
Sharpe Ratio (All Time) Calculated using the full available price history	-0.12	0.24	-0.36

Drawdowns

ACHR vs. AA - Drawdown Comparison

The maximum ACHR drawdown since its inception was -90.49%, roughly equal to the maximum AA drawdown of -90.90%. Use the drawdown chart below to compare losses from any high point for ACHR and AA.

Drawdown Indicators

	ACHR	AA	Difference
Max Drawdown Largest peak-to-trough decline	-90.49%	-90.90%	+0.41%
Max Drawdown (1Y) Largest decline over 1 year	-63.78%	-15.80%	-47.98%
Max Drawdown (3Y) Largest decline over 3 years	-63.78%	-52.25%	-11.53%
Max Drawdown (5Y) Largest decline over 5 years	-84.00%	-75.46%	-8.54%
Current Drawdown Current decline from peak	-66.57%	-19.12%	-47.45%
Average Drawdown Average peak-to-trough decline	-62.50%	-46.18%	-16.32%
Ulcer Index Depth and duration of drawdowns from previous peaks	40.38%	6.48%	+33.90%

Volatility

ACHR vs. AA - Volatility Comparison

Archer Aviation Inc. (ACHR) has a higher volatility of 19.42% compared to Alcoa Corporation (AA) at 18.33%. This indicates that ACHR's price experiences larger fluctuations and is considered to be riskier than AA based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ACHR	AA	Difference
Volatility (1M) Calculated over the trailing 1-month period	19.42%	18.33%	+1.09%
Volatility (6M) Calculated over the trailing 6-month period	43.60%	39.63%	+3.97%
Volatility (1Y) Calculated over the trailing 1-year period	71.28%	53.40%	+17.88%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	84.22%	56.08%	+28.14%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	82.17%	55.59%	+26.58%

Dividends

ACHR vs. AA - Dividend Comparison

ACHR has not paid dividends to shareholders, while AA's dividend yield for the trailing twelve months is around 0.54%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016
AA Alcoa Corporation	0.54%	0.75%	1.06%	1.18%	0.88%	0.17%	0.00%	0.00%	0.00%	0.00%	0.32%
ACHR Archer Aviation Inc.	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Financials

Frequently Asked Questions

Can I hold both ACHR and AA in my portfolio?

ACHR and AA have a correlation of 0.33, 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 AA?

ACHR has higher volatility (19.42%) compared to AA (18.33%). In terms of maximum drawdown, ACHR dropped -90.49% vs AA's -90.90%.

Which has better risk-adjusted returns?

AA currently has the higher Sharpe Ratio (3.11 vs -0.62), 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.