PDYN vs. RR

Last updated Jun 4, 2026

PDYN (Palladyne AI Corp) and RR (Richtech Robotics Inc. Class B Common Stock) are both stocks. PDYN operates in Software - Infrastructure (Technology), while RR operates in Specialty Industrial Machinery (Industrials). Over the past year, PDYN returned 7.87% vs 16.67% for RR. At a 0.34 correlation, their price movements are largely independent.

Performance

PDYN vs. RR - Performance Comparison

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

Returns By Period

In the year-to-date period, PDYN achieves a 83.33% return, which is significantly higher than RR's -16.56% return.

PDYN

• 1D: -9.19%
• 1M: 19.79%
• YTD: 83.33%
• 6M: 34.19%
• 1Y: 7.87%
• 3Y*: 54.52%
• 5Y*: —
• 10Y*: —

RR

• 1D: -9.87%
• 1M: 10.00%
• YTD: -16.56%
• 6M: -36.14%
• 1Y: 16.67%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

PDYN vs. RR - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
PDYN Palladyne AI Corp	83.33%	-65.28%	1,601.10%	4.60%
RR Richtech Robotics Inc. Class B Common Stock	-16.56%	19.63%	-54.62%	13.33%

Correlation

The correlation between PDYN and RR is 0.59, 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	0.60
Correlation (All Time) Calculated using the full available price history since Nov 20, 2023	0.34

Over the past year, PDYN and RR have become more correlated (0.59) than their long-term average of 0.34, meaning their price movements have been converging.

Fundamentals

Market Cap PDYN : $352.00M RR : $524.42M
EPS PDYN : -$0.61 RR : -$0.11
PS Ratio PDYN : 45.72 RR : 79.10
PB Ratio PDYN : 5.03 RR : 1.94
Total Revenue (TTM) PDYN : $7.07M RR : $5.05M
Gross Profit (TTM) PDYN : $2.26M RR : $3.29M
EBITDA (TTM) PDYN : -$32.20M RR : -$12.64M

Return for Risk

PDYN vs. RR — Risk / Return Rank

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

PDYN

PDYN Risk / Return Rank: 47
PDYN Sharpe Ratio Rank: 44
PDYN Sortino Ratio Rank: 54
PDYN Omega Ratio Rank: 50
PDYN Calmar Ratio Rank: 43
PDYN Martin Ratio Rank: 42

RR

RR Risk / Return Rank: 49
RR Sharpe Ratio Rank: 45
RR Sortino Ratio Rank: 58
RR Omega Ratio Rank: 53
RR Calmar Ratio Rank: 46
RR Martin Ratio Rank: 44

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.

PDYN vs. RR - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Palladyne AI Corp (PDYN) and Richtech Robotics Inc. Class B Common Stock (RR). 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.

	PDYN	RR	Difference
Sharpe ratio: Return per unit of total volatility	0.07	0.14	-0.07
Sortino ratio: Return per unit of downside risk	1.00	1.23	-0.23
Omega ratio: Gain probability vs. loss probability	1.11	1.13	-0.02
Calmar ratio: Return relative to maximum drawdown	0.12	0.23	-0.11
Martin ratio: Return relative to average drawdown	0.18	0.37	-0.19
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

PDYN vs. RR - Sharpe Ratio Comparison

The current PDYN Sharpe Ratio is 0.07, which is lower than the RR Sharpe Ratio of 0.14. The chart below compares the historical Sharpe Ratios of PDYN and RR, 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

	PDYN	RR	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.07	0.14	-0.07
Sharpe Ratio (All Time) Calculated using the full available price history	-0.24	-0.14	-0.10

Drawdowns

PDYN vs. RR - Drawdown Comparison

The maximum PDYN drawdown since its inception was -99.23%, roughly equal to the maximum RR drawdown of -96.67%. Use the drawdown chart below to compare losses from any high point for PDYN and RR.

Drawdown Indicators

	PDYN	RR	Difference
Max Drawdown Largest peak-to-trough decline	-99.23%	-96.67%	-2.56%
Max Drawdown (1Y) Largest decline over 1 year	-67.27%	-73.37%	+6.10%
Max Drawdown (3Y) Largest decline over 3 years	-84.00%	—	—
Current Drawdown Current decline from peak	-86.96%	-75.72%	-11.24%
Average Drawdown Average peak-to-trough decline	-82.00%	-74.82%	-7.18%
Ulcer Index Depth and duration of drawdowns from previous peaks	42.89%	45.14%	-2.25%

Volatility

PDYN vs. RR - Volatility Comparison

The current volatility for Palladyne AI Corp (PDYN) is 27.11%, while Richtech Robotics Inc. Class B Common Stock (RR) has a volatility of 32.25%. This indicates that PDYN experiences smaller price fluctuations and is considered to be less risky than RR based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	PDYN	RR	Difference
Volatility (1M) Calculated over the trailing 1-month period	27.11%	32.25%	-5.14%
Volatility (6M) Calculated over the trailing 6-month period	74.67%	81.97%	-7.30%
Volatility (1Y) Calculated over the trailing 1-year period	105.75%	118.67%	-12.92%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	141.30%	164.45%	-23.15%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	141.30%	164.45%	-23.15%

Dividends

PDYN vs. RR - Dividend Comparison

Neither PDYN nor RR has paid dividends to shareholders.

Tickers have no history of dividend payments

Financials

Frequently Asked Questions

Can I hold both PDYN and RR in my portfolio?

PDYN and RR 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, PDYN or RR?

RR has higher volatility (32.25%) compared to PDYN (27.11%). In terms of maximum drawdown, PDYN dropped -99.23% vs RR's -96.67%.

Which has better risk-adjusted returns?

RR currently has the higher Sharpe Ratio (0.14 vs 0.07), 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.