EDIT NASD has halted trading in options.
I thought something was weird, IWM dropped to 105.05 but the 105 put hadn't budged. Now it is bid 0.71 Vs 0.70, which has got to be wrong
Other funny things, the NFLX 310 put list 1.50 B as volume, which I assume means billion. The 170 SPY call is listed 1.25 x 0.75,again not right.