to maximize

...

...

People considered the stock market a gambling den because many do not know how to properly trade or invest in stocks. The majority were misled to believe that this or that stock would definitely soar up in price. The words came from online influencers who they chose to believe because they did not know nor have the time to learn how to do fundamental analysis or technical analysis. Then when time came, they could only watch their money value plunged down with the stocks. 

If that was not gambling, then what is? 

Zhang Mei Xing took up business and finance in her college days, plus she had memories of her previous life so she did not have to face the same problem. But pretended she did not know which companies would do well in eight years' time and blindly bought stocks. The funds came from her savings account.