Market makers provide a ‘two-way quote’ to the market, which means they are willing to both buy and sell a security at a competitive price in all market conditions.
A market maker must commit to continuously quoting prices at which it will buy (or bid for) and sell (or ask for) securities. Market makers must also quote the volume in which they're willing to trade along with the frequency of time they will quote at the best bid and best offer prices. Market makers must stick to these parameters at all times and during all market outlooks. When markets become erratic or volatile, market makers must remain disciplined in order to continue facilitating smooth transactions.
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