理论决定方法# Stock
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炒股要有系统，系统要有理论依据，理论体系最终决定抄作的体系和方法。大家讨论一
下可以提高理论水平，忽悠90后名校女生的时候，会显得比较高大上。
我先提两个：
1.）random walk
In short, random walk says that stocks take a random and unpredictable path.
The chance of a stock's future price going up is the same as it going down.
A follower of random walk believes it is impossible to outperform the
market without assuming additional risk.
2.) Mean Reversion
A theory suggesting that prices and returns eventually move back towards the
mean or average. This mean or average can be the historical average of the
price or return or another relevant average such as the growth in the
economy or the average return of an industry.
村长是做Mean Reversion的，我是做random walk的。
下可以提高理论水平，忽悠90后名校女生的时候，会显得比较高大上。
我先提两个：
1.）random walk
In short, random walk says that stocks take a random and unpredictable path.
The chance of a stock's future price going up is the same as it going down.
A follower of random walk believes it is impossible to outperform the
market without assuming additional risk.
2.) Mean Reversion
A theory suggesting that prices and returns eventually move back towards the
mean or average. This mean or average can be the historical average of the
price or return or another relevant average such as the growth in the
economy or the average return of an industry.
村长是做Mean Reversion的，我是做random walk的。
