If multiple varieties are made at the same time, then10 million yuan is the upper limit of short-term speculation. Generally, individuals can make two or three varieties at the same time. If you do too much, it will be difficult for you to do both, and your thinking will be confused.
I have been in contact with the number one speculators in China. When he trades, he only makes one variety. At most, the capital is only four or five million, and the monthly profit is1800,000.
If you have a lot of money (tens of millions, hundreds of millions ...), it is impossible to speculate in the short term, because your big order will affect the drastic changes in prices, and you can't enter the market in the short term.