Supplement:
Short position: Although the stock price is relatively high at present, investors are not optimistic about the stock market prospect and expect the stock price to fall, so they sell the stock at a relatively high price and buy it when the stock falls to a certain price to obtain the difference income.
Open the warehouse, open the warehouse. There are usually two operating modes in trading, one is bullish (buyer) and the other is bearish (seller). Whether you are long or short, placing an order is called "opening a position". It can also be understood that in trading, whether buying or selling, all new positions are called opening positions.