PLTR vs. ARQQ

Last updated Jun 13, 2026

PLTR (Palantir Technologies Inc.) and ARQQ (Arqit Quantum Inc.) are both stocks. Both operate in the Software - Infrastructure industry within the Technology sector. Over the past 3 years, PLTR returned 99.99%/yr vs -28.53%/yr for ARQQ. At a 0.30 correlation, their price movements are largely independent.

Performance

PLTR vs. ARQQ - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Palantir Technologies Inc. (PLTR) and Arqit Quantum Inc. (ARQQ). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, PLTR achieves a -27.99% return, which is significantly higher than ARQQ's -37.84% return.

PLTR

• 1D: -2.36%
• 1M: -1.58%
• YTD: -27.99%
• 6M: -30.28%
• 1Y: -5.33%
• 3Y*: 99.99%
• 5Y*: 39.00%
• 10Y*: —

ARQQ

• 1D: -0.66%
• 1M: -1.66%
• YTD: -37.84%
• 6M: -52.03%
• 1Y: -49.10%
• 3Y*: -28.53%
• 5Y*: —
• 10Y*: —

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

PLTR vs. ARQQ - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
PLTR Palantir Technologies Inc.	-27.99%	135.03%	340.48%	167.45%	-64.74%	-31.64%
ARQQ Arqit Quantum Inc.	-37.84%	-43.67%	227.76%	-86.87%	-84.93%	158.92%

Correlation

The correlation between PLTR and ARQQ is 0.45, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.45
Correlation (3Y) Calculated over the trailing 3-year period	0.34
Correlation (All Time) Calculated using the full available price history since Sep 7, 2021	0.30

The correlation between PLTR and ARQQ shifts across timeframes, from 0.30 (all time) to 0.45 (1 year), reflecting how their relationship changes across market environments.

Fundamentals

Market Cap PLTR : $329.05B ARQQ : $225.50M
EPS PLTR : $0.89 ARQQ : -$4.72
PS Ratio PLTR : 62.90 ARQQ : 151.77
PB Ratio PLTR : 38.94 ARQQ : 7.91
Total Revenue (TTM) PLTR : $5.22B ARQQ : $1.43M
Gross Profit (TTM) PLTR : $4.39B ARQQ : -$307.00K
EBITDA (TTM) PLTR : $2.01B ARQQ : -$68.30M

Return for Risk

PLTR vs. ARQQ — Risk / Return Rank

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

PLTR

PLTR Risk / Return Rank: 38
PLTR Sharpe Ratio Rank: 39
PLTR Sortino Ratio Rank: 37
PLTR Omega Ratio Rank: 36
PLTR Calmar Ratio Rank: 39
PLTR Martin Ratio Rank: 39

ARQQ

ARQQ Risk / Return Rank: 24
ARQQ Sharpe Ratio Rank: 22
ARQQ Sortino Ratio Rank: 27
ARQQ Omega Ratio Rank: 28
ARQQ Calmar Ratio Rank: 21
ARQQ Martin Ratio Rank: 25

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.

PLTR vs. ARQQ - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Palantir Technologies Inc. (PLTR) and Arqit Quantum Inc. (ARQQ). 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.

	PLTR	ARQQ	Difference
Sharpe ratio: Return per unit of total volatility	-0.11	-0.47	+0.37
Sortino ratio: Return per unit of downside risk	0.20	-0.20	+0.41
Omega ratio: Gain probability vs. loss probability	1.03	0.98	+0.05
Calmar ratio: Return relative to maximum drawdown	-0.14	-0.62	+0.48
Martin ratio: Return relative to average drawdown	-0.25	-0.91	+0.66

PLTR vs. ARQQ - Sharpe Ratio Comparison

The current PLTR Sharpe Ratio is -0.11, which is higher than the ARQQ Sharpe Ratio of -0.47. The chart below compares the historical Sharpe Ratios of PLTR and ARQQ, 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

PLTR vs. ARQQ - Drawdown Comparison

The maximum PLTR drawdown since its inception was -84.62%, smaller than the maximum ARQQ drawdown of -99.60%. Use the drawdown chart below to compare losses from any high point for PLTR and ARQQ.

Drawdown Indicators

	PLTR	ARQQ	Difference
Max Drawdown Largest peak-to-trough decline	-84.62%	-99.60%	+14.98%
Max Drawdown (1Y) Largest decline over 1 year	-38.22%	-79.78%	+41.56%
Max Drawdown (3Y) Largest decline over 3 years	-40.61%	-89.76%	+49.15%
Max Drawdown (5Y) Largest decline over 5 years	-79.14%	—	—
Current Drawdown Current decline from peak	-38.22%	-98.57%	+60.35%
Average Drawdown Average peak-to-trough decline	-40.27%	-88.78%	+48.51%
Ulcer Index Depth and duration of drawdowns from previous peaks	21.23%	53.78%	-32.55%

Volatility

PLTR vs. ARQQ - Volatility Comparison

The current volatility for Palantir Technologies Inc. (PLTR) is 17.16%, while Arqit Quantum Inc. (ARQQ) has a volatility of 35.65%. This indicates that PLTR experiences smaller price fluctuations and is considered to be less risky than ARQQ based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	PLTR	ARQQ	Difference
Volatility (1M) Calculated over the trailing 1-month period	17.16%	35.65%	-18.49%
Volatility (6M) Calculated over the trailing 6-month period	38.32%	64.49%	-26.17%
Volatility (1Y) Calculated over the trailing 1-year period	50.83%	104.65%	-53.82%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	65.44%	134.12%	-68.68%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	69.75%	134.12%	-64.37%

Dividends

PLTR vs. ARQQ - Dividend Comparison

Neither PLTR nor ARQQ has paid dividends to shareholders.

Tickers have no history of dividend payments

Financials

Frequently Asked Questions

Can I hold both PLTR and ARQQ in my portfolio?

PLTR and ARQQ have a correlation of 0.45, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, PLTR or ARQQ?

ARQQ has higher volatility (35.65%) compared to PLTR (17.16%). In terms of maximum drawdown, PLTR dropped -84.62% vs ARQQ's -99.60%.

Which has better risk-adjusted returns?

PLTR currently has the higher Sharpe Ratio (-0.11 vs -0.47), 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.