The walls come and go. They don't effect the probability/price distributions, and contain about the same amount of information as noise. I have measured it. And that is about all the information I feel like feeding this market.
Its not easy to measure the information in a signal. I guess I have to sacrifice one of my own secrets to win this battle.
Quote
One of the key observations of inventory models is that the shape of the order book is predictive of impending changes in the market price. Figure 10.4 illustrates the phenomenon identified by Cao, Hansch, and Wang (2004). In panel (a), market price is “pushed” by a large concentration of conservative limit orders.
Cao, Hansch, and Wang (2004) find that the shape of the limit order book is actively exploited by market-making traders. Cao, Hansch, and Wang (2004) also find that the breadth and depth (also known as the length and height) of the limit order book predicts 30 percent of the impending price moves. Furthermore, the asymmetry in the order book generates additional information.
Cao, Hansch, and Wang (2004) find that the shape of the limit order book is actively exploited by market-making traders. Cao, Hansch, and Wang (2004) also find that the breadth and depth (also known as the length and height) of the limit order book predicts 30 percent of the impending price moves. Furthermore, the asymmetry in the order book generates additional information.
