HSBC once reported that millionaires in Hong Kong take an average of about 8 years to become worth HK$10 million.

Of course, this is a result of favorable market cycles—returns are easier to amplify when the economy is on an upswing.
Suppose a person worth HK$10 million invests it all in the S&P 500. Based on an annualized return of 15% during an upswing, they could theoretically grow their wealth to HK$100 million in about 16 years.
In an ideal scenario, if they benefited from economic upswings every step of the way, going from HK$1 million to HK$100 million might theoretically take just 26 years.

Let’s look at the actual performance of the most recent U.S. stock market upswing (2016‑2026):
• S&P 500: about 4.2x (annualized ≈15%)
• Nasdaq: about 7x (annualized ≈22%)
• Microsoft: about 10x
• Apple: about 12x
• Nvidia: about 70x

⚠️Past performance is not indicative of future results. Markets go up and down. The figures above are for historical reference only and do not constitute investment advice.