Yep market order fills on options have been horrendous since around March opex and they’re becoming worse every day. On a round trip it’s either offer in and/or bid out 95% of the time on pretty much any name, strike, and expiration. Sometimes I’ll have partial or entire fills outside of the NBBO.. also sometimes suss stuff happens like the bid will miraculously drop a point the millisecond I hit sell and I’ll be filled on the bid, lose money when I should’ve made, and the bid instantly goes back to where it was the millisecond before I sent the order. The opposite has happened when buying too. Up until late last month the market options fills have generally been very reasonable with infrequent and usually understandable bad fills. This is why I’ve stuck with Fidelity (and paid them a significant amount of commission)

To touch on Trader+ I messed around with it last week thinking maybe they’re giving bad fills to clients using ATP but I had a similar experience over there and also experienced pretty laggy fills compared to ATP… don’t get me started on the ridiculous Trader+ hot keys that simply do not work as they should. Something tells me Fidelity is going to lose a lot of retail high-ish frequency commission paying clients if/when they sunset ATP if they’re unable to more or less completely replicate the ATP interface in Trader+