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Quote from johncool:
The trade size is 100, and it were all filled at ISLAND.
I'm looking at T&S and something doesn't seem right about your triggers
at 945:52 the bid/ask was 71.21 at 71.23
at 9:47:01 the bid/ask was 71.32 at 71.33
and at 9:51 the bid/ask was 71.41 at 71.42
All the fills are within the NBBO at the time. I think you are thus setting up your stop orders incorrectly.

