RE tbev L2 info L2 shows much information but it cannot show when a MM collects all their Bids to 1 ASK of say 1 Billion shares for sale to try and move the share price one way or another. It very easily and more likely is a accumulation of ORDERS .
keeping it Real Also L2 is not reliable on some platforms as proven and is always behind in their bid and ask .Not real time .