Small lots are usually a MM signal. If you believe.... I've seen many in my time.

MM SIGNALS
100 > I need shares
200 > I need shares badly but dont take it down to get em
300 > Take the price down to get shares....
400 > Trade it sideways based on Supply and Demand
500 > Gap one way or the other, usually to the direction
of the 500 trade. Sometimes -if in the middle -keep the price right where it is.

OG