Fills
Using "SMART" order routing on IB.
Put in LMT @ the bid, 5 contracts, Jan 12 SLV.
For the C is was 4.65
For the P it was 4.40
C's got a partial fill (4 ctcs), CBOE, and then the last ctc 5 min later.
P's had the market move away, to 4.45/4.55, so I changed my bid to 4.50 and...