Bitcoin Volatility Likely as Options Worth $4B Expire on Friday
ReadOn the other side of the transaction are dealers or market makers, who provide liquidity to an order book by creating buy and sell orders. Market makers earn money from the spread between the bid and ask price and trade the underlying asset to keep their net exposure market-neutral. Their hedging activity often breeds volatility, especially in the lead-up to major expiries, like the one due on Friday.

