1816.HK vs. ^GSPC

Last updated Jun 5, 2026

1816.HK (CGN Power) is a stock, while ^GSPC (S&P 500 Index) is an index. Over the past 10 years, 1816.HK returned 7.60%/yr vs 13.75%/yr for ^GSPC. At a 0.06 correlation, their price movements are largely independent.

Performance

1816.HK vs. ^GSPC - Performance Comparison

The chart below illustrates the hypothetical performance of a HK$10,000 investment in CGN Power (1816.HK) and S&P 500 Index (^GSPC). The values are adjusted to include any dividend payments, if applicable.

Different Trading Currencies

1816.HK is traded in HKD, while ^GSPC is traded in USD. To make them comparable, the ^GSPC values have been converted to HKD using the latest available exchange rates.

Returns By Period

The year-to-date returns for both stocks are quite close, with 1816.HK having a 11.55% return and ^GSPC slightly lower at 11.50%. Over the past 10 years, 1816.HK has underperformed ^GSPC with an annualized return of 7.60%, while ^GSPC has yielded a comparatively higher 13.75% annualized return.

1816.HK

• 1D: 0.63%
• 1M: -6.88%
• YTD: 11.55%
• 6M: 6.12%
• 1Y: 26.19%
• 3Y*: 21.77%
• 5Y*: 17.70%
• 10Y*: 7.60%

^GSPC

• 1D: 0.36%
• 1M: 4.44%
• YTD: 11.50%
• 6M: 11.32%
• 1Y: 26.80%
• 3Y*: 21.04%
• 5Y*: 12.61%
• 10Y*: 13.75%

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

1816.HK vs. ^GSPC - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
1816.HK CGN Power	11.55%	7.04%	44.53%	15.25%	-17.57%	49.92%	-15.94%	16.35%	-8.90%	2.08%
^GSPC S&P 500 Index	11.50%	16.61%	22.67%	24.22%	-19.31%	27.58%	15.74%	28.20%	-6.03%	20.34%

Correlation

The correlation between 1816.HK and ^GSPC is -0.11, meaning they tend to move in opposite directions. This is especially valuable for risk management - when one declines, the other has historically tended to hold steady or rise.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	-0.11
Correlation (3Y) Calculated over the trailing 3-year period	-0.03
Correlation (5Y) Calculated over the trailing 5-year period	0.01
Correlation (10Y) Calculated over the trailing 10-year period	0.03
Correlation (All Time) Calculated using the full available price history since Dec 11, 2014	0.06

The correlation between 1816.HK and ^GSPC shifts across timeframes, from -0.11 (1 year) to 0.06 (all time), reflecting how their relationship changes across market environments.

Return for Risk

1816.HK vs. ^GSPC — Risk / Return Rank

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

1816.HK

1816.HK Risk / Return Rank: 69
1816.HK Sharpe Ratio Rank: 72
1816.HK Sortino Ratio Rank: 69
1816.HK Omega Ratio Rank: 64
1816.HK Calmar Ratio Rank: 70
1816.HK Martin Ratio Rank: 72

^GSPC

^GSPC Risk / Return Rank: 80
^GSPC Sharpe Ratio Rank: 79
^GSPC Sortino Ratio Rank: 79
^GSPC Omega Ratio Rank: 79
^GSPC Calmar Ratio Rank: 76
^GSPC Martin Ratio Rank: 86

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.

1816.HK vs. ^GSPC - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for CGN Power (1816.HK) and S&P 500 Index (^GSPC). 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.

	1816.HK	^GSPC	Difference
Sharpe ratio: Return per unit of total volatility	1.04	2.27	-1.23
Sortino ratio: Return per unit of downside risk	1.69	3.11	-1.42
Omega ratio: Gain probability vs. loss probability	1.19	1.41	-0.22
Calmar ratio: Return relative to maximum drawdown	1.61	3.07	-1.46
Martin ratio: Return relative to average drawdown	4.12	14.25	-10.13
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

1816.HK vs. ^GSPC - Sharpe Ratio Comparison

The current 1816.HK Sharpe Ratio is 1.04, which is lower than the ^GSPC Sharpe Ratio of 2.27. The chart below compares the historical Sharpe Ratios of 1816.HK and ^GSPC, 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

	1816.HK	^GSPC	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.04	2.27	-1.23
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.60	0.75	-0.15
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.29	0.76	-0.47
Sharpe Ratio (All Time) Calculated using the full available price history	0.12	0.45	-0.33

Drawdowns

1816.HK vs. ^GSPC - Drawdown Comparison

The maximum 1816.HK drawdown since its inception was -68.29%, which is greater than ^GSPC's maximum drawdown of -56.80%. Use the drawdown chart below to compare losses from any high point for 1816.HK and ^GSPC.

Drawdown Indicators

	1816.HK	^GSPC	Difference
Max Drawdown Largest peak-to-trough decline	-68.29%	-56.80%	-11.49%
Max Drawdown (1Y) Largest decline over 1 year	-16.74%	-8.77%	-7.97%
Max Drawdown (3Y) Largest decline over 3 years	-35.46%	-18.97%	-16.49%
Max Drawdown (5Y) Largest decline over 5 years	-35.46%	-24.92%	-10.54%
Max Drawdown (10Y) Largest decline over 10 years	-35.46%	-34.06%	-1.40%
Current Drawdown Current decline from peak	-12.61%	-0.39%	-12.22%
Average Drawdown Average peak-to-trough decline	-46.89%	-9.28%	-37.61%
Ulcer Index Depth and duration of drawdowns from previous peaks	6.46%	1.89%	+4.57%

Volatility

1816.HK vs. ^GSPC - Volatility Comparison

CGN Power (1816.HK) has a higher volatility of 7.03% compared to S&P 500 Index (^GSPC) at 2.88%. This indicates that 1816.HK's price experiences larger fluctuations and is considered to be riskier than ^GSPC based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	1816.HK	^GSPC	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.03%	2.88%	+4.15%
Volatility (6M) Calculated over the trailing 6-month period	19.43%	8.99%	+10.44%
Volatility (1Y) Calculated over the trailing 1-year period	25.97%	11.88%	+14.09%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	30.17%	16.88%	+13.29%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	26.77%	18.03%	+8.74%

Frequently Asked Questions

Can I hold both 1816.HK and ^GSPC in my portfolio?

1816.HK and ^GSPC have a correlation of -0.11, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.