It supersedes the $200,000 option on Deribit as the maximum one can wager.
Source: https://www.coindesk.com/traders-can-now-bet-on-bitcoin-300k-as-options-keep-pace-with-rising-price
Traders Can Now Bet on ‘Bitcoin $300K’ as Options Keep Pace With Rising Price
January 8, 2021
CoinDesk
