Will $Tesla (TSLA.US)$ be up or down tomorrow?

$Grab Holdings (GRAB.US)$ 
potential for short squeeze?

1. Weekly review
Last week, I bought $Moderna (MRNA.US)$ and $BioNTech (BNTX.US)$ again. Especially BioNTech, it almost fell back to the starting point in mid-July, just for the news of "special medicine".
If you still remember the knowledge of biology courses, you should know that in regard to infectious diseases, prevention is the first, followed by treatment. Vaccine is the most important preventive method. Even if the effect of the specific medicine increases to 70%, the vaccine cannot be stopped.
Of course, will the prices return to previous high? It depends on the demand for vaccines next year, there is no clear news or calculation. In Q4, there will be relevant information in the company's financial report, let's take a look.
If everyone finds that the demand for vaccines next year has not weakened too much, it is certain that the two stocks will return to their upward trend.
$Dow Jones Industrial Average (.DJI.US)$ $Nasdaq Composite Index (.IXIC.US)$ $S&P 500 Index (.SPX.US)$
2. The basic factors of investment
(1) Source of funds
Different sources of funds determine the mentality. If your mentality is worse, the probability of loss will increase sharply. Don't affect your own life with the money used to invest in the stock market.
(2) Amount of funds
Investors have huge differences in the amount of funds, and the impact on the subsequent operation tactics is obvious. At the same time, different levels of funds have different tests of mentality and psychological endurance.
(3) Available period of funds
Set a certain restriction for yourself. After the limit of time, you can be more awake, and not indulge in the sea of stocks, forgetting that money has many other uses.
To sum up, fund is the most important factor that determines the length of our game in the stock market. Everyone should take a good inventory of funds from multiple dimensions, and take this matter seriously.