How to use the star institutions in the most effective way possible with the data provided by Moomoo

if you click on the vanguard group in AMC list you will see the current percent holdings of vanguard group. From here if you scroll a bit left you will see the prior proportion and the current proportion of the stock in this fund. We can see that the fund increased the number of stocks in thoer portfolio, example $Apple (AAPL.US)$ and $Microsoft (MSFT.US)$. From here we can assume the fund is securing shares of these companies, that indicates they will most probably go up in price, because of shortage of stocks in market. since vanguard fund's 0.14% change is equal to $5 billion(calculated by multiplying it with vanguard market cap) in stocks of Apple. which can make a huge impact in the stock supply. which in turn increases the demand and price of the stock.
Similarly we can look at the top 5 (top 10 for more precision in your results) to have their positional changes on a particular stock. If we multiply these changes of the particular stock with the fund's marketcap we will get a final result.
Important: some increases their positions and some decreases their positions, Hence we add the increasing positions and subtract the decreasing positional changes.
Finally, it will be a good idea to also look at the market cap of the stock for example microsoft has a market cap of 1.6T and thus having a change of 5 billion can have a normal impact on the stock. However, stocks with smaller marketcap but the positional changes in billions can have a very high impact of stock prices.
Or if you dont want to work too hard. In the hot AMC page, if you scroll a bit low you will see the hot stocks and their positional changes in the amc. Here you can directly choose to pick the stocks to buy or stock in the market.
Happy trading