I don't always use "fill or kill". On the 27th I had a 100K limit order at 0.119 I think. The price did dip to that level, but I only got 150 shares. I guess it is possible that these small trades, especially buys could come about that way. Agree, not a great deal relative to the commission, but worth the risk for me to try to pick up a big piece on a dip.
Price movement today looks like the MMs have tested the low and aren't real excited about the number of shares that they were able to shake loose.
jc