My daughter is trying to develope an understanding of trading and the option world.  She has a small account and level 1 option trading, covered calls only.  I Have put together a TOS scan that I use for ideas for her.  I am looking for other scan criteria and a critique of this scan if anyone cares to chime in.
Currently I am using:  And these vary a bit as results dictate.
Stock Last $10-$22
Stock Volume > 400,000
Option Percent of Underlying 2%-5%
Days to OpEx 20-50
Open Interest: >100
Volume: >100
Earnings Does not have in 36 bars.
This piscked up some of the OMM trades which gives me hope.  She has some gold and oil so I passed these tickers by.  A couple that look interesting are $CY, $TCK,