Brothers, when you see the position lists of major Wall Street banks, your first reaction is: the homework has been set out, can we just buy according to it? But the most worthwhile research for institutional holdings is often not the stock names, but the allocation logic behind these names. Although various institutions have repeatedly held positions such as NVIDIA, Microsoft, Apple, and Amazon, they all seem familiar. But familiarity does not mean it is cheap, and institutional holdings do not mean they have just bought, let alone directly stating that "it will rise again in the future". First, clarify what we are really looking at. If the data comes from 13F, it reflects partial securities holdings at the end of the quarter, not real-time accounts. The declaration of large financial groups may also consolidate their asset management business and customer accounts, and cannot be simply understood as "big banks taking their own money to make unified bets". It is also not a complete list of risks. You may see long positions in stocks, but you may not necessarily see corresponding short positions and other hedging arrangements. Only copying what was bought, without knowing why it was bought or how to control the risk, may result in bearing completely different fluctuations in the end. Secondly, an increase in the proportion of holdings does not necessarily mean actively increasing positions. For example, if a stock's quantity has not changed, but it has risen faster than other assets this quarter, its proportion will also increase. If you really want to see the actions of institutions, you need to compare the number of shares held, new additions, and liquidation situations, and then see if they have been adjusting for several consecutive quarters. What I would like to ask more about technology stocks is: Has revenue growth been converted into profits? When will the money invested in AI generate returns? How much good news has the current price already reflected in advance? The position ranking list will not directly tell you these questions. Another point is that buying multiple names does not necessarily mean risk diversification. If you already hold the S&P and Nasdaq, and have added several tech giants separately, you may just buy the same batch of companies repeatedly through different entry points. So my usage is to use institutional holdings as research clues. Discover companies worth paying attention to, and then review their financial reports, valuations, and business on your own, without temporarily increasing your position just because a major bank appears on the shareholder list. Long term fixed investment should be arranged according to one's own cash flow, and there should also be a limit on individual stock investment. The waiting time and drawdown that institutions can withstand may not necessarily be suitable for us. Other people's positions can be used as a reference, but one still needs to write down their own reasons for buying. Otherwise, when it falls, all you can rely on is one sentence: "They bought it too