 Hi Traders, let's go over the correlation tracker feature in Bookmap and how it works. So you'll find it first underneath the API button here. So let's click on that and open it up and you'll add the correlation tracker here. Once you've added it, select it here and then you'll have access to the different settings. So first thing is to set up the correlation that you want. So we're looking at the instrument here, the NQ, the Nasdaq E-mini, and I've selected to correlate that instrument with the S&P E-mini and you also have the scaling option here. You can change the scaling by a multitude. We'll just keep it at one and we'll select the line color here as teal and then let's close that. And once you've done that you'll see the correlated instrument here, the teal line projected onto the Nasdaq E-mini chart here. So this represents the S&P. Now how to use this? Let's take a look at the Nasdaq open here at 9.30 am Eastern time and we can see the correlation here between the two markets. This is where we start to see a discrepancy in price. You'll have to determine how you want to use this or trade this. If you want to, there are many different ways, you can trade the Nasdaq out right here, right from the chart in book map if you choose to do that or maybe you want to jump over and take the trade in the S&P if you see a discrepancy there or you can trade both. You can short the Nasdaq in specific areas and buy the S&P in other areas and look for a return to the mean. It's really up to you. In this instance we're looking at a price movement and discrepancy here in the Nasdaq E-mini and then to trade it in line with the way the S&P E-mini is behaving. So we see that discrepancy here. Look at the nice spike to the upside in the Nasdaq, a liquidity grab into some of these higher areas here and look at the S&P. It's going flat. It does not make that spike to the upside and break the structure here. It stays within its structure and actually continues to the downside. It's at this point here, you know there's a discrepancy so this allows many opportunities for entry. So you can enter short in some of these areas up here around this $54.26 and trade it back down to the bottom of the range if that's what you want to do or you can start to build a position adding into the discrepancy. We see another retest here around $54.25 and a quarter and so forth in all of these little areas here. That change does not or is not reflected in the S&P E-mini and finally the correlation or the markets come back into line here and you can see what occurs. Finally the Nasdaq E-mini catches up and makes this pretty dramatic move to the downside very, very quickly and the S&P has already shown its movement here to the downside before the Nasdaq has. So this is a great tool, I hope you guys find lots of uses for it.