I heard that day traders and scalpers are so effective that they significantly effect the market. Also the mechanics of trading is a little different. Those that are long term holders essentially ride everything out but other go with leverage and can gain or loose alot. In some way if I wanted to gamble significant amounts, like over 10k, I would do it with leveraged trading over normal gambling. Also I've seen youtube videos of gambling strategies used on trading, and it looks good.
That goes and effective for traders but gamblers don't do it the same as traders.
In gambling, there are the multipliers that can also be compared to leverage and I guess every single thing that traders and gamblers do have similarities in process and methods.