Didn't get 3550. Honestly this is scary. Everything is tightening up. I'm playing small scalps with tight stop losses. Might go big long at 3500 but who knows.
Bitcoin can go either way at this point so it is very risky to trade on Bitmex now. Even if you trade, make sure that you do not use large leverage and try to play with stoploss so that in case of unexpected movement of bitcoin, you are not liquidated.