Quote from jimmyneutron:
Microstructure... right. Like those nickel markets you're hitting? Are you really that delusional to believe you can make markets profitably with these penny markets? There are guys inside your market by a penny... probably 5,000 of them at IB alone. You're babysitting your tickers and too obtuse to realize you're in denial.
Here's an idea of the state of affairs:
GS Jan/Feb 200 spread, 260x280. Filled on 200 at 2.70. A $.20-wide time spread on a $200 stock. Can you say FAIRVAL?
*Fact: Your competition just increased by an order of magnitude. Not that it matters as you're not profitable and sell-side is DEAD.