Stock prices are more complex than that. In general they don't follow normal distribution.

Then they have some sort of trend.

Then they might be autocorrelated.

Then sometimes they have some seasonality.

Also different time series are correlated between them to some degree..

The closest thing to this in finance would be technical analysis (different from quantitative analysis, which has more basis in reality). But as other posters pointed out, this stuff has a fair amount of selection bias clouding how useful it really is.

monitoring of manufacturing processes.