1.1.1 Predicting Financial Market Movements

1.1.1 预测金融市场走势

We’ve all heard legends of stock traders making millions of dollars by buying and selling the right stocks at the right time. Based on the movies I’ve seen, I always picture a trader as a middle-aged man in a suit yelling at his broker over a cell phone while driving around in a sports car. Maybe this stereotype was spot-on at one point, but the situation is different today.

我们都听说过股票交易员的创奇故事：正确的时间，买入卖出正确的股票，狂赚数百万美元。根据所看电影，总把他们想象成西装革履的的中年男子，一边开着跑车，一边用手机对着经纪人大喊大叫。也许这种刻板印象在某一时期没错，但如今情况已经不同了。

Holed up in back offices of skyscrapers all over Manhattan are thousands of people called quants. Quants, otherwise known as quantitative analysts, design mathematical algorithms to automatically trade stocks and earn a profit. They don’t wear suits

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