Big loss - not unexpected

Updated
As I said yesterday, I was expecting this sharp pullback and to give back most of my gains which happened. Work was really busy and I had no time to manage positions today. But maybe that's just an excuse and I don't take this seriously enough. During the first hour I was actually up 1.5%, then later it reversed down to a -7% portfolio loss for the day. Market is yet to close, I'll wait for before the close but I'm thinking of reducing my exposure by half.
Comment
in the beginning I meant to say down $330 (not %)
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