Empty means bearish, which means selling.
To do more is to buy a warehouse and prepare to earn a higher price difference.
Short selling is selling and opening positions, ready to earn a falling price difference.
Seeing more is optimistic about the stock market rise.
Being bearish means thinking that the stock will fall.
A bullish news means that the news will stimulate the stock to rise.
Bad news means that the news will stimulate the stock to fall.
In the futures and options markets, the concept of long and short is more complicated. Now the domestic market is relatively single. To make multiple stocks, it is usually to buy stocks in the secondary market, and short stocks can only be made by means of securities lending. In addition, there are stock index futures, which can be long or short against the broader market to control system risks.
In mature financial markets, long positions can include: buying spot, long futures, buying call options and selling put options.
In contrast, shorting can include: selling spot, shorting futures, selling call options and buying put options.
For individual investors, if they don't have enough study and understanding of finance, it is recommended not to use too many financial tools. If I haven't been exposed to the stock market before, I suggest starting with funds or simply buying and selling some stocks in the secondary market.
But please remember that investment is to preserve and increase value, not to make a fortune. Don't be greedy.
The above content is original. Please correct me if it is incomplete.