If you guys know where one could secure those types of put options, please fill me in. The only avenue atm for me seems to be a spread bet on margin... Which I'm not that keen on as "market irrational for longer than solvent" and so forth.

If I was a betting man I’d say the 21st January - because I can’t help but think BTC’s inflated price is predicated on the uncertainties in our political situation.

I don’t mean that in a “collapse of western civilisation”-sense - I mean it more that Biden may normalise relations with countries where Bitcoin is used for-real because of sanctions or concerns over economic disenfranchisement: if people (and oligarchs) in Russia, Iran and Venezuela can participate in the normative financial systems (SWIFT, Visa, Mastercard, etc) then BTC has far less real utility and thus less value.

Heck, I think if more US states and other countries legalise drugs that would also deal a blow (no pun intended) to BTC’s price.