RR vs. ACHR

Last updated Jun 9, 2026

RR (Richtech Robotics Inc. Class B Common Stock) and ACHR (Archer Aviation Inc.) are both stocks. Both are in the Industrials sector — RR in Specialty Industrial Machinery, ACHR in Aerospace & Defense. Over the past year, RR returned 3.18% vs -43.77% for ACHR. At a 0.44 correlation, their price movements are largely independent.

Performance

RR vs. ACHR - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Richtech Robotics Inc. Class B Common Stock (RR) and Archer Aviation Inc. (ACHR). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

The year-to-date returns for both investments are quite close, with RR having a -24.61% return and ACHR slightly higher at -23.80%.

RR

• 1D: 1.25%
• 1M: -7.77%
• YTD: -24.61%
• 6M: -44.41%
• 1Y: 3.18%
• 3Y*: —
• 5Y*: —
• 10Y*: —

ACHR

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

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

RR vs. ACHR - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
RR Richtech Robotics Inc. Class B Common Stock	-24.61%	19.63%	-54.62%	19.00%
ACHR Archer Aviation Inc.	-23.80%	-22.87%	58.79%	-1.92%

Correlation

The correlation between RR and ACHR is 0.58, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.58
Correlation (All Time) Calculated using the full available price history since Nov 17, 2023	0.44

The correlation between RR and ACHR shifts across timeframes, from 0.44 (all time) to 0.58 (1 year), reflecting how their relationship changes across market environments.

Fundamentals

Market Cap RR : $473.83M ACHR : $4.39B
EPS RR : -$0.11 ACHR : -$1.36
PS Ratio RR : 71.47 ACHR : 1.65K
PB Ratio RR : 1.76 ACHR : 2.11
Total Revenue (TTM) RR : $5.05M ACHR : $1.90M
Gross Profit (TTM) RR : $3.29M ACHR : $300.00K
EBITDA (TTM) RR : -$12.64M ACHR : -$712.00M

Return for Risk

RR vs. ACHR — Risk / Return Rank

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

RR

RR Risk / Return Rank: 47
RR Sharpe Ratio Rank: 43
RR Sortino Ratio Rank: 56
RR Omega Ratio Rank: 52
RR Calmar Ratio Rank: 43
RR Martin Ratio Rank: 43

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

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.

RR vs. ACHR - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Richtech Robotics Inc. Class B Common Stock (RR) and Archer Aviation Inc. (ACHR). 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.

	RR	ACHR	Difference
Sharpe ratio: Return per unit of total volatility	0.03	-0.62	+0.64
Sortino ratio: Return per unit of downside risk	1.04	-0.65	+1.68
Omega ratio: Gain probability vs. loss probability	1.11	0.93	+0.18
Calmar ratio: Return relative to maximum drawdown	0.04	-0.69	+0.73
Martin ratio: Return relative to average drawdown	0.07	-1.08	+1.15
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

RR vs. ACHR - Sharpe Ratio Comparison

The current RR Sharpe Ratio is 0.03, which is higher than the ACHR Sharpe Ratio of -0.62. The chart below compares the historical Sharpe Ratios of RR and ACHR, 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

	RR	ACHR	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.03	-0.62	+0.64
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	-0.13	—
Sharpe Ratio (All Time) Calculated using the full available price history	-0.16	-0.12	-0.04

Drawdowns

RR vs. ACHR - Drawdown Comparison

The maximum RR drawdown since its inception was -96.67%, which is greater than ACHR's maximum drawdown of -90.49%. Use the drawdown chart below to compare losses from any high point for RR and ACHR.

Drawdown Indicators

	RR	ACHR	Difference
Max Drawdown Largest peak-to-trough decline	-96.67%	-90.49%	-6.18%
Max Drawdown (1Y) Largest decline over 1 year	-73.37%	-63.78%	-9.59%
Max Drawdown (3Y) Largest decline over 3 years	—	-63.78%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-84.00%	—
Current Drawdown Current decline from peak	-78.06%	-66.57%	-11.49%
Average Drawdown Average peak-to-trough decline	-74.83%	-62.50%	-12.33%
Ulcer Index Depth and duration of drawdowns from previous peaks	45.57%	40.38%	+5.19%

Volatility

RR vs. ACHR - Volatility Comparison

Richtech Robotics Inc. Class B Common Stock (RR) has a higher volatility of 31.92% compared to Archer Aviation Inc. (ACHR) at 19.42%. This indicates that RR's price experiences larger fluctuations and is considered to be riskier than ACHR based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	RR	ACHR	Difference
Volatility (1M) Calculated over the trailing 1-month period	31.92%	19.42%	+12.50%
Volatility (6M) Calculated over the trailing 6-month period	80.35%	43.60%	+36.75%
Volatility (1Y) Calculated over the trailing 1-year period	119.34%	71.28%	+48.06%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	164.25%	84.22%	+80.03%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	164.25%	82.17%	+82.08%

Dividends

RR vs. ACHR - Dividend Comparison

Neither RR nor ACHR has paid dividends to shareholders.

Tickers have no history of dividend payments

Financials

Frequently Asked Questions

Can I hold both RR and ACHR in my portfolio?

RR and ACHR have a correlation of 0.58, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, RR or ACHR?

RR has higher volatility (31.92%) compared to ACHR (19.42%). In terms of maximum drawdown, RR dropped -96.67% vs ACHR's -90.49%.

Which has better risk-adjusted returns?

RR currently has the higher Sharpe Ratio (0.03 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.