A stock index is an index of stock prices. It is an indicative figure compiled by a stock exchange or financial services institution to show the movement of the stock market.
There is a popular saying in the stock market: "It's not how much you make in the stock market, but how long you live", and it is this saying that makes me have palpitations about long term investment.
Early options trading in the US began in 1872, founded by the then famous financier Russell, and at that time included call and put options, the market was always OTC and required trading through brokers.
A stock exchange is a legal person that provides premises and facilities for the centralized trading of securities, organizes and supervises the trading of securities, and exercises self-regulation.
Soros' theory of interactions only provides him with the direction of his investment objectives and the means to seize potential opportunities, not the precise orientation or the timing of important turns.
