[AZ-AlphaXi]

Snap bid vs. COB bid

my understanding is that snap bids are those bids given and accepted between the time that bid matching is complete and before formal bids are distributed. So, unless the new member says "I got a snap bid" no one other than she and those participating in bid matching would know it was anything other than a snap bid. COB bid are any other bids given and received after formal bids are distributed.

So COB bids can be given the same day as formal bids, they are just given after.