Interesting. My TD Ameritrade trades seem to go through SBSH.
Earlier it was 1.405 bid, 1.41 ask. TDA's real-time quotes showed 1.41 x 1.41, L2 was correct, and streamer was something else. I looked at Fidelity's real-time quote, that was correct.
HDSN seems to be shorting at higher prices. I think someone there isn't going to see much of a performance bonus.