The death of Justice Ruth Bader Ginsburg and President Trump's vow to name her replacement to the Supreme Court before November's election are amplifying Wall Street's worries about major volatility and market losses ahead of and even after the election.

The big picture: The 2020 election is the most expensive event risk on record, per Bloomberg — with insurance bets on implied volatility six times their normal level, according to JPMorgan analysts. And it could take days or even weeks to count the record number of mail-in ballots and declare a winner.