If you invest for short term, the risk is very high and profit depends on what your choice. With my experience I always tried to do short term investment. Some tries were great (With GRAN) and most of them were bad(with SFS etc) .
If you are willing to invest in short term try them out..
1. Analyse every day.
2. Keep eye on a share what you are willing to buy.
3. Watch it's movements everyday.
4. Prepare for tomorrow.
5. Buy in the morning the day you are trying to buy.
6. Now you have already watched how the share moves. So sell at the right time.
*** Buying an IPO and holding is very stronger than day trades and short term investments***