# Double Delta The AlgoBox™ Delta Flagging Pro is a powerful tool for identifying institutional trading. It visually displays large-scale buying and selling activity.

An example of a Double Delta Flag, while price has been declining, indicating that a potential opportunity may be near.

Now known as "Ready DD" when a significant Double Delta Flag pattern appears, we "Ready Up" - prepare to assess the next trade opportunity.

This green Double Delta Flag is a bearish signal, as price drops shortly after the pattern appears.

{% hint style="info" %} [Click here to learn about the Delta Flagging Pro indicator](https://docs.algoboxpro.com/fundamentals/flowmaster-tm-delta-flagging-pro). {% endhint %}

Double Delta (green), followed by a double PRZ Cross reversal setup.

Muilti Confluence: Double Delta appears just before the Double Cross Reversal (DCR).

*** ## Ready DD The FlowMaster™ Delta Flagging Pro signals a Double Delta by displaying "Ready DD" text vertically on the chart.

In this example, a Double Delta is detected, displaying the "Ready DD" text on the chart, signaling a potential upward move.

This pattern was formerly known as a "Ready Up."

Here is another example where a Double Delta is detected, displaying the "Ready DD" text on the chart, indicating a potential downward move.

A triple Ready DD may indicate a potential trend reversal, alerting you to a change in market direction. This occurs when three or more Ready DD verticals are detected on the chart, indicating a possible reversal.

Here are three Double Delta Ready DD verticals are plotted on the chart, indicating a potential trend reversal that could lead to an upward move.

Another example where three Double Delta Ready DD verticals are plotted on the chart, indicating a potential trend reversal that could lead to a downward move.

*** ## Example: Double Delta/Ready DD Vertical Colored Bars Below is are example charts with the Delta Flagging Pro Double Delta verticals checked ON, showing colored vertical highlights as a default setting and default colors.

A Ready DD up, with its green colored vertical bar highlight.

{% hint style="info" %} The colors of the vertical bar highlights can be customized to your desires. {% endhint %}

A Ready DD down, with its red colored vertical bar highlight.

*** ## Video Tutorial: Double Delta {% embed url="" %} WATCH: This brief tutorial explains the Double Delta in detail. {% endembed %} {% embed url="" %} WATCH: Vinny E. Mini teaches the Delta Flagging traps strategy in this video tutorial. {% endembed %} *** Only available on AlgoBox™ for NinjaTrader 8. [Try AlgoBox™ for free today.](https://www.algoboxpro.com/start-trial) [**Disclaimer**](https://docs.algoboxpro.com/links/disclaimer)