BTC dropped 10% so far on the news. I wonder if you sold Seg2X futures, what is their value now? Is it going to zero?
I believe the 2 futures X1 and X2 were backed by Bitcoins. So now the thing doesn't materialize everyone gets its BTC back (if you still have equal X1 and X2). But it might be more complicated than that (what if you sold for Fiat, or bought with Fiat ??).