9866.HK vs. NIO

Last updated Jun 5, 2026

9866.HK (NIO Inc) and NIO (NIO Inc.) are both stocks. Both operate in the Auto Manufacturers industry within the Consumer Cyclical sector. Over the past 3 years, 9866.HK returned -8.25%/yr vs -12.09%/yr for NIO. At a 0.26 correlation, their price movements are largely independent.

Performance

9866.HK vs. NIO - Performance Comparison

The chart below illustrates the hypothetical performance of a HK$10,000 investment in NIO Inc (9866.HK) and NIO Inc. (NIO). The values are adjusted to include any dividend payments, if applicable.

Different Trading Currencies

9866.HK is traded in HKD, while NIO is traded in USD. To make them comparable, the NIO values have been converted to HKD using the latest available exchange rates.

Returns By Period

In the year-to-date period, 9866.HK achieves a 11.62% return, which is significantly higher than NIO's 5.78% return.

9866.HK

• 1D: -3.67%
• 1M: -0.70%
• YTD: 11.62%
• 6M: 13.67%
• 1Y: 60.42%
• 3Y*: -8.25%
• 5Y*: —
• 10Y*: —

NIO

• 1D: -5.80%
• 1M: -9.17%
• YTD: 5.78%
• 6M: 7.03%
• 1Y: 47.84%
• 3Y*: -12.09%
• 5Y*: -33.60%
• 10Y*: —

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

9866.HK vs. NIO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022
9866.HK NIO Inc	11.62%	17.70%	-52.72%	-6.24%	-50.60%
NIO NIO Inc.	5.78%	17.20%	-52.18%	-6.99%	-45.23%

Correlation

The correlation between 9866.HK and NIO is 0.29, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.29
Correlation (3Y) Calculated over the trailing 3-year period	0.31
Correlation (All Time) Calculated using the full available price history since Mar 11, 2022	0.26

Return for Risk

9866.HK vs. NIO — Risk / Return Rank

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

9866.HK

9866.HK Risk / Return Rank: 70
9866.HK Sharpe Ratio Rank: 74
9866.HK Sortino Ratio Rank: 74
9866.HK Omega Ratio Rank: 68
9866.HK Calmar Ratio Rank: 70
9866.HK Martin Ratio Rank: 65

NIO

NIO Risk / Return Rank: 63
NIO Sharpe Ratio Rank: 66
NIO Sortino Ratio Rank: 66
NIO Omega Ratio Rank: 61
NIO Calmar Ratio Rank: 64
NIO Martin Ratio Rank: 60

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.

9866.HK vs. NIO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for NIO Inc (9866.HK) and NIO Inc. (NIO). 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.

	9866.HK	NIO	Difference
Sharpe ratio: Return per unit of total volatility	1.11	0.76	+0.35
Sortino ratio: Return per unit of downside risk	1.93	1.50	+0.43
Omega ratio: Gain probability vs. loss probability	1.21	1.17	+0.05
Calmar ratio: Return relative to maximum drawdown	1.57	1.10	+0.46
Martin ratio: Return relative to average drawdown	2.81	1.98	+0.83
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

9866.HK vs. NIO - Sharpe Ratio Comparison

The current 9866.HK Sharpe Ratio is 1.11, which is higher than the NIO Sharpe Ratio of 0.76. The chart below compares the historical Sharpe Ratios of 9866.HK and NIO, 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

	9866.HK	NIO	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.11	0.76	+0.35
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	-0.47	—
Sharpe Ratio (All Time) Calculated using the full available price history	-0.36	-0.03	-0.33

Drawdowns

9866.HK vs. NIO - Drawdown Comparison

The maximum 9866.HK drawdown since its inception was -87.34%, smaller than the maximum NIO drawdown of -94.99%. Use the drawdown chart below to compare losses from any high point for 9866.HK and NIO.

Drawdown Indicators

	9866.HK	NIO	Difference
Max Drawdown Largest peak-to-trough decline	-87.34%	-94.99%	+7.65%
Max Drawdown (1Y) Largest decline over 1 year	-41.83%	-43.51%	+1.68%
Max Drawdown (3Y) Largest decline over 3 years	-80.02%	-79.78%	-0.24%
Max Drawdown (5Y) Largest decline over 5 years	—	-94.09%	—
Current Drawdown Current decline from peak	-76.37%	-91.38%	+15.01%
Average Drawdown Average peak-to-trough decline	-65.59%	-67.82%	+2.23%
Ulcer Index Depth and duration of drawdowns from previous peaks	23.10%	24.23%	-1.13%

Volatility

9866.HK vs. NIO - Volatility Comparison

The current volatility for NIO Inc (9866.HK) is 17.10%, while NIO Inc. (NIO) has a volatility of 19.56%. This indicates that 9866.HK experiences smaller price fluctuations and is considered to be less risky than NIO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	9866.HK	NIO	Difference
Volatility (1M) Calculated over the trailing 1-month period	17.10%	19.56%	-2.46%
Volatility (6M) Calculated over the trailing 6-month period	37.71%	41.17%	-3.46%
Volatility (1Y) Calculated over the trailing 1-year period	58.86%	63.00%	-4.14%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	72.48%	71.65%	+0.83%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	72.48%	86.67%	-14.19%

Dividends

9866.HK vs. NIO - Dividend Comparison

Neither 9866.HK nor NIO has paid dividends to shareholders.

Tickers have no history of dividend payments

Financials

Frequently Asked Questions

Can I hold both 9866.HK and NIO in my portfolio?

9866.HK and NIO have a correlation of 0.29, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.