In the financial market, the size of funds is proportional to the difficulty of operations. Large funds often face the dilemma of being unable to build a position all at once, which may require multiple transactions at various price levels. This approach not only increases the transaction cost but may also expose one's intentions, attracting the attention of market makers and the follow of other investors.

In contrast, retail investors seem to have more flexibility. Theoretically, they only need to buy and sell at the right time. However, in reality, very few people can consistently follow this simple principle. The reason often lies in the greed and fear inherent in human nature.

The buying points in the market usually appear during a downward trend, but fear often hinders investors from entering the market in a timely manner. Conversely, selling points often form during an upward trend, while greed makes it difficult for people to let go. Investors dominated by these two emotions find it hard to achieve long-term success in the market.

It is worth noting that when judging the quality of stocks in the market, one should pay more attention to their position rather than other factors. Stocks at buy points can be considered good stocks, while those at sell points may be bad stocks. Other classification methods may mislead investment decisions.

Every investor should take responsibility for their own investments. There are no absolutely reliable sources of advice in the market; the only trustworthy source is the voice and rhythm of the market itself. To capture these signals, investors need to listen carefully and have a heart that can overcome greed and fear.

The signals of the market are always reflected in the present. No matter how successful an investor has been in the past, if at any moment they are blinded by greed or fear and ignore the voice of the market, they may face serious consequences.

Overall, in the financial markets, small retail investors and large funds each have their advantages. The key is whether one can always maintain rationality, listen to the voice of the market, and make the right decisions at the appropriate time.