Quote from total_keops:
2 cents per share per day, 250 days per year on a 40$ average stock makes a 12.5% annual return without compounding.
Indeed that is a nice return if it was guaranteed, but it's not. Also, i can't say for certain, but i doubt the avergae stock price is $40. I have about 200 stocks on my opening spreadsheets and the avergage is closer to $20-$25 now.
If you are willing to trade the size (Lescor does for one), then a person can make a decent living just trading openings. But the average person doesn't trade that size off the open, especially in this market, and isn't willing to trade the fill properly to see the return.
For what it's worth, i've traded the open for some time up until the new year. The returns just weren't there anymore to justify the risk i was taking. For me, this strategy simply is not AS profitable as it was. What that is attributed to - who knows.