As a trader in the stock market, I think the best investment channel of 500,000 principal is the stock market. The stock market has a low threshold, as long as you have certain securities knowledge, understand market risks and open an account, you can trade; The stock market has strong profitability. Many people say that the stock market loses money and does not make money. It is true that the stock market is a minority, but if you say that everyone loses money in the stock market, then I object. Personally, my profit in 17 is about 45%. If it weren't for the black week in February, my profit would reach 60%. If there is a bull market, doubling it is nothing. Therefore, the stock market can make money if it works well, and its profitability is still very strong.