That's right, the system is really different, in stock you can analyze it and make a decision also make a profit, although the profit is not much as you want, but you can still earn profit.
In gambling, you just play with your feeling, it's make a lose.
If you choose a right stocks then the profits also very high over the time but choosing right stock at right time is the most difficult part in stock markets. If any one planning for long tern then stock market is different from gambling but if one planning for day trading then gambling and day trading not much difference both need a luck and no calculations will work out.
LoL you're wrong to understand what i said. I means and what i'm understand about buying shares is this investment plan for long term and people who want to invest is need do a research first about the market, it's make a possibility to earn more profit if you can analyze the market(this doesn't have with gambling).
You said about trading a day, it's means forex isn't? Well if you can analyze the market for today, you can earn profit today, otherwise, if you just take a position without analyze, it's not different with you do a gamble.