Traders provide liquidity in pre and post session by allowing traders and investors the opportunity to terminate or initiate positions without having to wait for the regular session. There is a price to be paid for doing this but it often out ways the disadvantages.
?.....by definition, half of the volume "provides" liquidity and the other half of the volume "removes" liquidity.
depends. if i think i'm one of the first on news, i take. if i think i'm NOT one of the first, i wait, then offer. i don't trade much in pm after hours, more in am.
>> do most traders who trade in the after hours take or provide liquity? << 1 buyer - 1 seller so isn't it a wash?