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Ask AI · How to Overcome Loss Aversion in Human Nature When Increasing Positions for Profit?

Summary of Today’s Market

On April 8th, A-shares experienced a strong rebound. The Shanghai Composite index closed up 2.69% at 3,995 points, the Shenzhen Component Index rose 4.79%, the ChiNext Index increased 5.91%, and the STAR Market 50 surged 6.18%. The total daily trading volume was 2.45 trillion yuan, over 50% higher than the previous trading day, with more than 5,100 stocks rising across the market.

At the sector level, the four major technology sectors—communications, electronics, media, and computers—each gained over 6%, with non-ferrous metals up nearly 6%; energy sectors like oil, petrochemicals, and coal declined against the trend. Hong Kong stocks also strengthened, with the Hang Seng Tech Index up 4.76%. The driving logic is clear: the ceasefire between the US and Iran eased inflation concerns; the release of the Zhipu GLM-5.1 enabled domestic large models to match international prices; combined with accelerated commercial use of CPO and other industry catalysts, leading to a full-scale explosion in tech growth.

In-Depth Commentary: Loss-Adding Is Escape, Profit-Adding Is Practice

In daily investment operations, there is a phenomenon that almost every market participant has been troubled by: why do we always sink deeper into losing stocks, while we can never hold onto or sell winning stocks early enough? Behind this lies a subtle psychological mechanism.

When a position shows floating losses, many investors’ first reaction is not to calmly reassess whether the logic has changed, but to subconsciously find reasons to add to the position to dilute the cost. On the surface, this is a reverse thinking of “buying more as it falls,” but deeper analysis reveals it is often just subconscious avoidance of pain.

Losses are painful because they directly negate our initial decisions. Admitting a loss and exiting means facing the fact “I was wrong,” which is a significant blow to anyone’s self-perception. Adding to the position to average down offers a detour—if you don’t sell, the loss is only on paper; if the stock rebounds, you can not only break even but also prove your original judgment was correct.

This psychological mechanism stems from humans’ innate “loss aversion” and “self-justification” tendencies. Behavioral finance research shows that when facing certain losses, people tend to exhibit risk-seeking behavior—they prefer to gamble rather than accept the established reality. Averaging down is a typical projection of this gambler’s mentality into investing.

More covertly, each addition silently serves as self-justification: I am not making a mistake; I am building a position. Once this narrative forms, investors fall into a vicious cycle of “buying more as it falls, falling more as they buy,” until their funds are exhausted or their mental defenses collapse.

But the market doesn’t care about your cost basis. Whether a stock is worth holding depends solely on its future cash flow discounting, unrelated to your initial purchase price. When fundamentals weaken and industry trends shift, continuing to add only sinks you deeper into the sunk cost fallacy. Sunk cost fallacy tells us rational decisions should only consider future benefits and costs; past losses should not influence current judgment.

However, knowing this is easier than doing it. Truly “forgetting the cost” in investing is rare. The only correct way to face pain is to admit mistakes, cut losses, and preserve capital for the next truly worthwhile opportunity.

Conversely, there is another less obvious psychological trap—the impulse to take profits too early. When a position is floating in profit, the desire to lock in gains is almost a physiological instinct. Psychological studies show that humans’ aversion to losses is about twice as strong as the joy of equivalent gains. This means that in a profit zone, investors are naturally inclined to exit early to avoid the risk of “the cooked duck flying away.” While this mindset may be acceptable in short-term trading, for investors with a medium- to long-term perspective, premature exit often leads to missing out on substantial gains.

Furthermore, the impulse to take profits is rooted in a deeper psychological need—to affirm oneself. Every time you sell a profitable stock, you are proving to yourself “I made money,” “my judgment was correct.” This immediate positive feedback is pleasurable but may come at the cost of larger gains. Those who dare to add to winning positions are essentially willing to delay gratification and endure short-term volatility for higher returns.

The real difference in investment returns lies precisely in overcoming this innate tendency. Proactively adding to profitable positions means you are willing to risk sacrificing current profits to explore the maximum potential of the investment. This is not blindly chasing highs but using larger positions to match a continuously validated logic and strengthening trend. Those who earn multiples or even tenfold returns on great stocks are never just relying on precise bottom-fishing; they dare to keep adding during upward moves, allowing profits to run freely. Their common trait: when the market proves their correctness, they do not rush to cash out but are willing to bet bigger.

Of course, adding to profits should only be done when the logic has not yet been fully realized. If a company’s growth potential has been fully priced in, or if the industry cycle has entered a downturn, continuing to add is no longer about exploring profit boundaries but driven by greed and risk-taking.

The key is whether the fundamentals can support higher valuations. This requires a clear understanding of industry trends, in-depth knowledge of a company’s competitive advantages, and rational valuation assessments. Distinguishing these boundaries is a true test of an investor’s cognitive level.

Investment Message

Investing is not about predicting tomorrow’s rise or fall but about finding businesses that stand the test of time, then quietly waiting for compound interest to work. Slow is fast, and less is more.

Note: The market is risky; invest cautiously. This article is based on publicly available information and does not constitute any investment advice.