Is a 100% annualized return sustainable for retail investors?

In a statistical sense, a 100% annualized return for retail investors is almost unsustainable.

Such a return rate may exist in the short term (1-3 years), but if extended to a horizon of over 10 years, it is not just "god-like," but surpasses all ceilings in the history of human investment.

1. What does this return rate mean?

We can calculate with compound interest. If you have 100,000 yuan:

• Year 10: You would have approximately 100 million yuan.

• Year 20: You would have approximately 100 billion yuan.

• Year 30: Your wealth would exceed 100 trillion yuan (this already exceeds the current global annual GDP).

If such a return rate were sustainable, the richest person in the world should be this retail investor, not Warren Buffett (whose long-term annualized return is only about 20%).

2. Why is it unsustainable? (Core Limitations)

• Risk Premium and Leverage Trap:

Retail investors who achieve 100% returns usually adopt strategies with extremely high positions, high leverage, or extremely high volatility (such as full-position options, leveraged crypto trading, or even betting on a single meme stock).

• Mathematical models show: As long as this strategy is accompanied by huge drawdowns, even just one -50% loss requires a +100% gain to break even. In the pursuit of 100% returns, often just one "black swan" event can lead to a blow up.

• Capacity Constraints:

When you only have 100,000 yuan, such returns are feasible; when you have 10 million yuan, your buying and selling will start to affect the stock price, liquidity worsens, and slippage increases. This phenomenon is called "size is the enemy of returns."

• Mean Reversion:

Extremely high returns often come from specific market cycles (e.g., the 2020-2021 tech stock bull market or the 2025 AI wave). Once the market style shifts (from a bull market to a volatile or bear market), the original aggressive strategy will fail.

3. Survivorship Bias

The "annualized doubling" gurus you see on social media usually have two characteristics:

1. Survivor: Out of 1,000 aggressive traders, indeed one might survive by luck and guts and be seen by you; the remaining 999 have quietly disappeared (blown up).

2. Short Time Span: Most people boasting about 100% returns have a statistical period of only a few months or one or two years, lacking verification across bull and bear markets.

4. What is the "truly sustainable" top level?

• Warren Buffett: About 20% (sustained for over 50 years)

• James Simons (Medallion Fund): About 66% (pre-fee, known as the god of quant, with limited fund capacity)

• Top Retail Investors: Being able to maintain a 30% - 40% annualized return over 5-10 years is already in the top 0.1% globally.

💡 Moment of Awakening:

If someone around you claims they can consistently and stably double their money every year, they are either the next human miracle or want to earn your tuition fee

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