ACHR vs. ARDX

Last updated Jun 3, 2026

ACHR (Archer Aviation Inc.) and ARDX (Ardelyx, Inc.) are both stocks. ACHR operates in Aerospace & Defense (Industrials), while ARDX operates in Biotechnology (Healthcare). Over the past 5 years, ACHR returned -7.46%/yr vs -4.31%/yr for ARDX. At a 0.25 correlation, their price movements are largely independent.

Performance

ACHR vs. ARDX - Performance Comparison

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

Returns By Period

In the year-to-date period, ACHR achieves a -10.37% return, which is significantly lower than ARDX's -5.32% return.

ACHR

• 1D: -1.46%
• 1M: 14.82%
• YTD: -10.37%
• 6M: -11.90%
• 1Y: -30.73%
• 3Y*: 31.56%
• 5Y*: -7.46%
• 10Y*: —

ARDX

• 1D: -3.66%
• 1M: -19.77%
• YTD: -5.32%
• 6M: -0.36%
• 1Y: 43.38%
• 3Y*: 16.18%
• 5Y*: -4.31%
• 10Y*: -4.80%

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

ACHR vs. ARDX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020
ACHR Archer Aviation Inc.	-10.37%	-22.87%	58.79%	228.34%	-69.04%	-39.96%	0.90%
ARDX Ardelyx, Inc.	-5.32%	14.99%	-18.23%	117.54%	159.09%	-83.00%	-6.91%

Correlation

The correlation between ACHR and ARDX is 0.27, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.27
Correlation (3Y) Calculated over the trailing 3-year period	0.27
Correlation (5Y) Calculated over the trailing 5-year period	0.25
Correlation (All Time) Calculated using the full available price history since Dec 21, 2020	0.25

Fundamentals

Market Cap ACHR : $5.17B ARDX : $1.36B
EPS ACHR : -$1.36 ARDX : -$0.24
PS Ratio ACHR : 1.94K ARDX : 3.13
PB Ratio ACHR : 2.49 ARDX : 9.13
Total Revenue (TTM) ACHR : $1.90M ARDX : $427.68M
Gross Profit (TTM) ACHR : $300.00K ARDX : $395.63M
EBITDA (TTM) ACHR : -$712.00M ARDX : -$28.55M

Return for Risk

ACHR vs. ARDX — Risk / Return Rank

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

ACHR

ACHR Risk / Return Rank: 23
ACHR Sharpe Ratio Rank: 21
ACHR Sortino Ratio Rank: 24
ACHR Omega Ratio Rank: 25
ACHR Calmar Ratio Rank: 22
ACHR Martin Ratio Rank: 24

ARDX

ARDX Risk / Return Rank: 65
ARDX Sharpe Ratio Rank: 63
ARDX Sortino Ratio Rank: 66
ARDX Omega Ratio Rank: 63
ARDX Calmar Ratio Rank: 68
ARDX Martin Ratio Rank: 67

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. ARDX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Archer Aviation Inc. (ACHR) and Ardelyx, Inc. (ARDX). 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	ARDX	Difference
Sharpe ratio Return per unit of total volatility	-0.44	0.71	-1.15
Sortino ratio Return per unit of downside risk	-0.25	1.59	-1.84
Omega ratio Gain probability vs. loss probability	0.97	1.19	-0.22
Calmar ratio Return relative to maximum drawdown	-0.52	1.50	-2.02
Martin ratio Return relative to average drawdown	-0.83	3.14	-3.97
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. ARDX - Sharpe Ratio Comparison

The current ACHR Sharpe Ratio is -0.44, which is lower than the ARDX Sharpe Ratio of 0.71. The chart below compares the historical Sharpe Ratios of ACHR and ARDX, 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	ARDX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.44	0.71	-1.15
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.09	-0.05	-0.04
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	-0.06	—
Sharpe Ratio (All Time) Calculated using the full available price history	-0.08	-0.09	0.00

Drawdowns

ACHR vs. ARDX - Drawdown Comparison

The maximum ACHR drawdown since its inception was -90.49%, smaller than the maximum ARDX drawdown of -98.45%. Use the drawdown chart below to compare losses from any high point for ACHR and ARDX.

Drawdown Indicators

	ACHR	ARDX	Difference
Max Drawdown Largest peak-to-trough decline	-90.49%	-98.45%	+7.96%
Max Drawdown (1Y) Largest decline over 1 year	-63.78%	-33.54%	-30.24%
Max Drawdown (3Y) Largest decline over 3 years	-63.78%	-66.32%	+2.54%
Max Drawdown (5Y) Largest decline over 5 years	-84.00%	-93.76%	+9.76%
Max Drawdown (10Y) Largest decline over 10 years	—	-96.82%	—
Current Drawdown Current decline from peak	-60.68%	-83.22%	+22.54%
Average Drawdown Average peak-to-trough decline	-62.50%	-77.37%	+14.87%
Ulcer Index Depth and duration of drawdowns from previous peaks	39.77%	16.08%	+23.69%

Volatility

ACHR vs. ARDX - Volatility Comparison

Archer Aviation Inc. (ACHR) has a higher volatility of 15.31% compared to Ardelyx, Inc. (ARDX) at 12.69%. This indicates that ACHR's price experiences larger fluctuations and is considered to be riskier than ARDX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ACHR	ARDX	Difference
Volatility (1M) Calculated over the trailing 1-month period	15.31%	12.69%	+2.62%
Volatility (6M) Calculated over the trailing 6-month period	42.88%	46.59%	-3.71%
Volatility (1Y) Calculated over the trailing 1-year period	70.46%	61.62%	+8.84%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	83.97%	89.42%	-5.45%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	82.06%	84.10%	-2.04%

Dividends

ACHR vs. ARDX - Dividend Comparison

Neither ACHR nor ARDX has paid dividends to shareholders.

Tickers have no history of dividend payments

Financials

Frequently Asked Questions

Can I hold both ACHR and ARDX in my portfolio?

ACHR and ARDX have a correlation of 0.27, 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 ARDX?

ACHR has higher volatility (15.31%) compared to ARDX (12.69%). In terms of maximum drawdown, ACHR dropped -90.49% vs ARDX's -98.45%.

Which has better risk-adjusted returns?

ARDX currently has the higher Sharpe Ratio (0.71 vs -0.44), 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.