# Depth Chart 1. This graph plots the requests to buy (known as bids) and the requests to sell (known as asks) on a chart. Because you can put a Limit Order on your buy or sell [[Transaction(s)|transaction]], the Depth Chart shows the crossover point at which the market is most likely to accept a transaction in a timely fashion. It also shows if there are any significant Buy Walls or Sell Walls in play.