# 4. Negative Delta Volume USDT Moving

#### What is a negative delta?

This is the difference between the volume of sales and purchases, in which sales prevail over purchases. That is, for a certain volume, there were more market sales than purchases.

{% hint style="info" %}
The negative value is filled in automatically, you do not need to specify the "-" sign
{% endhint %}

<table data-full-width="true"><thead><tr><th width="208.33333333333331">Parameter</th><th>Description</th><th>Example</th></tr></thead><tbody><tr><td>Negative Delta USDT Volume Greater than</td><td>Alert triggers when the negative delta volume in USDT exceeds a certain value.</td><td>Alert will trigger if the negative delta volume of BTCUSDT within a 1h timeframe exceeds -500K USDT.</td></tr><tr><td>Negative Delta USDT Volume Less than</td><td>Alert triggers when the negative delta volume in USDT drops below a certain value.</td><td>Alert will trigger if the negative delta volume of BTCUSDT within a 1h timeframe falls below -500K USDT.</td></tr><tr><td>Negative Delta USDT Volume Up On</td><td>Alert triggers when the negative delta volume in USDT increases on a certain amount.</td><td>Alert will trigger if the negative delta volume of BTCUSDT within a 1h timeframe increases on -200K USDT.</td></tr><tr><td>Negative Delta USDT Volume Up On %</td><td>Alert triggers when the negative delta volume in USDT increases on a certain percentage.</td><td>Alert will trigger if the negative delta volume of BTCUSDT within a 1h timeframe increases on 10%.</td></tr><tr><td>Negative Delta USDT Volume Down On</td><td>Alert triggers when the negative delta volume in USDT decreases on a certain amount.</td><td>Alert will trigger if the negative delta volume of BTCUSDT within a 1h timeframe decreases on -200K USDT.</td></tr><tr><td>Negative Delta USDT Volume Down On %</td><td>Alert triggers when the negative delta volume in USDT decreases on a certain percentage.</td><td>Alert will trigger if the negative delta volume of BTCUSDT within a 1h timeframe decreases on 10%.</td></tr></tbody></table>