That assumes the counterpart is liquid.

Fourth law of thermodynamics: liquidity will be provided by the central bank.

If you know the timing, CFDs it is.

You need to know with ridiculous precision, though. And the triggering event for the collapse usually isn’t predictable. For instance, if we’re seeing the beginning of the end now, we’ll, no-one could have really predicted the current sequence of events, unless they knew about Huang’s misconduct _and_ when it would be leaked.