Futures can be bought and sold, and they are all fictitious (for speculators), that is to say, shorting is the truth. For example, the current soybean price is 3000 yuan, and I think it may fall in the later period. I sold five lots for 3000. Now if the price reaches 2800, I will make a profit of 200 * 5 * 10 =.

Holding a position is money, in fact, it is the money you open a position.

Hedge fund is a put option with certain price and timeliness after the fund manager buys a stock in the most basic hedging operation. The function of put option is that when the stock price falls below the option-limited price, the holder of seller option can sell his stock at the option-limited price, thus hedging the risk of stock decline. In another hedging operation, the fund manager first chooses a bullish industry and buys several high-quality stocks in that industry. At the same time,

This should be very clear.