BYDDY vs. ARQQ

Last updated Jun 13, 2026

BYDDY (BYD Company Limited ADR) and ARQQ (Arqit Quantum Inc.) are both stocks. BYDDY operates in Auto Manufacturers (Consumer Cyclical), while ARQQ operates in Software - Infrastructure (Technology). Over the past 3 years, BYDDY returned 1.04%/yr vs -28.53%/yr for ARQQ. At a 0.16 correlation, their price movements are largely independent.

Performance

BYDDY vs. ARQQ - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in BYD Company Limited ADR (BYDDY) 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, BYDDY achieves a -8.48% return, which is significantly higher than ARQQ's -37.84% return.

BYDDY

• 1D: 0.66%
• 1M: -13.95%
• YTD: -8.48%
• 6M: -10.33%
• 1Y: -36.06%
• 3Y*: 1.04%
• 5Y*: 4.37%
• 10Y*: 20.45%

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)

BYDDY vs. ARQQ - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
BYDDY BYD Company Limited ADR	-8.48%	7.97%	24.81%	13.06%	-27.17%	2.90%
ARQQ Arqit Quantum Inc.	-37.84%	-43.67%	227.76%	-86.87%	-84.93%	158.92%

Correlation

The correlation between BYDDY and ARQQ is 0.17, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.17
Correlation (3Y) Calculated over the trailing 3-year period	0.16
Correlation (All Time) Calculated using the full available price history since Sep 7, 2021	0.16

Fundamentals

Market Cap BYDDY : $100.56B ARQQ : $225.50M
EPS BYDDY : CN¥3.03 ARQQ : -$4.72
PS Ratio BYDDY : 0.87 ARQQ : 151.77
PB Ratio BYDDY : 2.73 ARQQ : 7.91
Total Revenue (TTM) BYDDY : CN¥779.53B ARQQ : $1.43M
Gross Profit (TTM) BYDDY : CN¥132.63B ARQQ : -$307.00K
EBITDA (TTM) BYDDY : CN¥33.66B ARQQ : -$68.30M

Return for Risk

BYDDY vs. ARQQ — Risk / Return Rank

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

BYDDY

BYDDY Risk / Return Rank: 5
BYDDY Sharpe Ratio Rank: 6
BYDDY Sortino Ratio Rank: 7
BYDDY Omega Ratio Rank: 9
BYDDY Calmar Ratio Rank: 0
BYDDY Martin Ratio Rank: 5

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.

BYDDY vs. ARQQ - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for BYD Company Limited ADR (BYDDY) 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.

	BYDDY	ARQQ	Difference
Sharpe ratio: Return per unit of total volatility	-0.98	-0.47	-0.51
Sortino ratio: Return per unit of downside risk	-1.46	-0.20	-1.25
Omega ratio: Gain probability vs. loss probability	0.84	0.98	-0.14
Calmar ratio: Return relative to maximum drawdown	-1.03	-0.62	-0.41
Martin ratio: Return relative to average drawdown	-1.59	-0.91	-0.68

BYDDY vs. ARQQ - Sharpe Ratio Comparison

The current BYDDY Sharpe Ratio is -0.98, which is lower than the ARQQ Sharpe Ratio of -0.47. The chart below compares the historical Sharpe Ratios of BYDDY 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

BYDDY vs. ARQQ - Drawdown Comparison

The maximum BYDDY drawdown since its inception was -97.38%, roughly equal to the maximum ARQQ drawdown of -99.60%. Use the drawdown chart below to compare losses from any high point for BYDDY and ARQQ.

Drawdown Indicators

	BYDDY	ARQQ	Difference
Max Drawdown Largest peak-to-trough decline	-97.38%	-99.60%	+2.22%
Max Drawdown (1Y) Largest decline over 1 year	-35.21%	-79.78%	+44.57%
Max Drawdown (3Y) Largest decline over 3 years	-43.68%	-89.76%	+46.08%
Max Drawdown (5Y) Largest decline over 5 years	-48.16%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-58.18%	—	—
Current Drawdown Current decline from peak	-43.25%	-98.57%	+55.32%
Average Drawdown Average peak-to-trough decline	-63.73%	-88.78%	+25.05%
Ulcer Index Depth and duration of drawdowns from previous peaks	24.19%	53.78%	-29.59%

Volatility

BYDDY vs. ARQQ - Volatility Comparison

The current volatility for BYD Company Limited ADR (BYDDY) is 8.66%, while Arqit Quantum Inc. (ARQQ) has a volatility of 35.65%. This indicates that BYDDY 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

	BYDDY	ARQQ	Difference
Volatility (1M) Calculated over the trailing 1-month period	8.66%	35.65%	-26.99%
Volatility (6M) Calculated over the trailing 6-month period	28.41%	64.49%	-36.08%
Volatility (1Y) Calculated over the trailing 1-year period	37.02%	104.65%	-67.63%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	45.80%	134.12%	-88.32%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	47.24%	134.12%	-86.88%

Dividends

BYDDY vs. ARQQ - Dividend Comparison

BYDDY's dividend yield for the trailing twelve months is around 0.48%, while ARQQ has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016
ARQQ Arqit Quantum Inc.	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
BYDDY BYD Company Limited ADR	0.48%	1.45%	1.26%	0.60%	0.07%	0.07%	0.03%	0.47%	0.28%	0.52%	1.92%

Financials

Frequently Asked Questions

Can I hold both BYDDY and ARQQ in my portfolio?

BYDDY and ARQQ have a correlation of 0.17, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, BYDDY or ARQQ?

ARQQ has higher volatility (35.65%) compared to BYDDY (8.66%). In terms of maximum drawdown, BYDDY dropped -97.38% vs ARQQ's -99.60%.

Which has better risk-adjusted returns?

ARQQ currently has the higher Sharpe Ratio (-0.47 vs -0.98), 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.