9999.HK vs. 0388.HK

Last updated Jun 5, 2026

9999.HK (NetEase Inc) and 0388.HK (Hong Kong Exchange and Clearing Ltd) are both stocks. 9999.HK operates in Electronic Gaming & Multimedia (Communication Services), while 0388.HK operates in Financial Data & Stock Exchanges (Financial Services). Over the past 5 years, 9999.HK returned 3.95%/yr vs -0.80%/yr for 0388.HK. A 0.52 correlation means they provide meaningful diversification when combined.

Performance

9999.HK vs. 0388.HK - Performance Comparison

The chart below illustrates the hypothetical performance of a HK$10,000 investment in NetEase Inc (9999.HK) and Hong Kong Exchange and Clearing Ltd (0388.HK). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, 9999.HK achieves a -8.68% return, which is significantly lower than 0388.HK's -0.10% return.

9999.HK

• 1D: -0.50%
• 1M: 6.90%
• YTD: -8.68%
• 6M: -10.11%
• 1Y: -1.80%
• 3Y*: 15.79%
• 5Y*: 3.95%
• 10Y*: —

0388.HK

• 1D: -2.10%
• 1M: -4.84%
• YTD: -0.10%
• 6M: -0.06%
• 1Y: 1.83%
• 3Y*: 12.92%
• 5Y*: -0.80%
• 10Y*: 10.45%

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

9999.HK vs. 0388.HK - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020
9999.HK NetEase Inc	-8.68%	59.11%	1.03%	25.01%	-25.97%	7.53%	14.11%
0388.HK Hong Kong Exchange and Clearing Ltd	-0.10%	42.10%	13.85%	-18.41%	-24.22%	9.26%	45.74%

Correlation

The correlation between 9999.HK and 0388.HK is 0.51, 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	0.51
Correlation (3Y) Calculated over the trailing 3-year period	0.53
Correlation (5Y) Calculated over the trailing 5-year period	0.53
Correlation (All Time) Calculated using the full available price history since Jun 12, 2020	0.52

The correlation between 9999.HK and 0388.HK has been stable across timeframes, ranging from 0.51 to 0.53 - a consistent structural relationship.

Return for Risk

9999.HK vs. 0388.HK — Risk / Return Rank

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

9999.HK

9999.HK Risk / Return Rank: 38
9999.HK Sharpe Ratio Rank: 40
9999.HK Sortino Ratio Rank: 35
9999.HK Omega Ratio Rank: 34
9999.HK Calmar Ratio Rank: 40
9999.HK Martin Ratio Rank: 40

0388.HK

0388.HK Risk / Return Rank: 42
0388.HK Sharpe Ratio Rank: 46
0388.HK Sortino Ratio Rank: 38
0388.HK Omega Ratio Rank: 37
0388.HK Calmar Ratio Rank: 45
0388.HK Martin Ratio Rank: 45

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.

9999.HK vs. 0388.HK - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for NetEase Inc (9999.HK) and Hong Kong Exchange and Clearing Ltd (0388.HK). 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.

	9999.HK	0388.HK	Difference
Sharpe ratio: Return per unit of total volatility	-0.03	0.11	-0.14
Sortino ratio: Return per unit of downside risk	0.20	0.33	-0.12
Omega ratio: Gain probability vs. loss probability	1.02	1.04	-0.01
Calmar ratio: Return relative to maximum drawdown	-0.03	0.16	-0.19
Martin ratio: Return relative to average drawdown	-0.06	0.32	-0.38
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

9999.HK vs. 0388.HK - Sharpe Ratio Comparison

The current 9999.HK Sharpe Ratio is -0.03, which is lower than the 0388.HK Sharpe Ratio of 0.11. The chart below compares the historical Sharpe Ratios of 9999.HK and 0388.HK, 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

	9999.HK	0388.HK	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.03	0.11	-0.14
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.09	-0.02	+0.11
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.35	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.20	0.54	-0.34

Drawdowns

9999.HK vs. 0388.HK - Drawdown Comparison

The maximum 9999.HK drawdown since its inception was -57.95%, smaller than the maximum 0388.HK drawdown of -79.34%. Use the drawdown chart below to compare losses from any high point for 9999.HK and 0388.HK.

Drawdown Indicators

	9999.HK	0388.HK	Difference
Max Drawdown Largest peak-to-trough decline	-57.95%	-79.34%	+21.39%
Max Drawdown (1Y) Largest decline over 1 year	-29.83%	-15.18%	-14.65%
Max Drawdown (3Y) Largest decline over 3 years	-33.15%	-32.06%	-1.09%
Max Drawdown (5Y) Largest decline over 5 years	-53.29%	-60.01%	+6.72%
Max Drawdown (10Y) Largest decline over 10 years	—	-61.53%	—
Current Drawdown Current decline from peak	-20.14%	-18.17%	-1.97%
Average Drawdown Average peak-to-trough decline	-21.15%	-27.98%	+6.83%
Ulcer Index Depth and duration of drawdowns from previous peaks	15.86%	7.53%	+8.33%

Volatility

9999.HK vs. 0388.HK - Volatility Comparison

NetEase Inc (9999.HK) has a higher volatility of 10.97% compared to Hong Kong Exchange and Clearing Ltd (0388.HK) at 5.03%. This indicates that 9999.HK's price experiences larger fluctuations and is considered to be riskier than 0388.HK based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	9999.HK	0388.HK	Difference
Volatility (1M) Calculated over the trailing 1-month period	10.97%	5.03%	+5.94%
Volatility (6M) Calculated over the trailing 6-month period	23.87%	14.58%	+9.29%
Volatility (1Y) Calculated over the trailing 1-year period	32.27%	22.57%	+9.70%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	47.10%	34.15%	+12.95%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	46.09%	30.56%	+15.53%

Dividends

9999.HK vs. 0388.HK - Dividend Comparison

9999.HK's dividend yield for the trailing twelve months is around 2.45%, less than 0388.HK's 3.12% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
0388.HK Hong Kong Exchange and Clearing Ltd	3.12%	2.67%	2.81%	3.06%	2.26%	2.01%	1.58%	2.68%	2.86%	1.91%	2.77%	2.63%
9999.HK NetEase Inc	2.45%	2.20%	2.76%	1.96%	2.08%	0.81%	0.52%	0.00%	0.00%	0.00%	0.00%	0.00%

Financials

Frequently Asked Questions

Can I hold both 9999.HK and 0388.HK in my portfolio?

9999.HK and 0388.HK have a correlation of 0.51, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.