EMA Crossovers

Useful for identifying and receiving alerts about uptrends and downtrends.

This script uses two Exponential Moving Averages (EMAs) to find price uptrends and downtrends. An Exponential Moving Average (EMA) is a type of moving average that places a greater weight and significance on the most recent data points. The script produces uptrend and downtrend signals based on crossovers and divergences between the two EMAs, the user will be able to spot a trend change (when the EMAs crossover) and to determine the strength of the current trend (when the EMAs diverge). It is also posible to get alerts for uptrends and downtrends on the web and mobile app with sound and pop-ups as well as via email. The optimal time to enter and exit the market can be concluded from this trend changes.

The user can set their own EMAs, by default they are set to 21 and 55 periods for medium and long term respectively. When the medium term EMA crosses below the long term EMA the asset is in a downtrend and the price will decline, and when the medium term EMA crosses above the long term EMA the asset is in an uptrend and price will increase.

This scripts plots the following indicators and signals on the chart to help the user to identify trends:

1.- Medium and long term EMAs as lines overlaid on the price chart.
2.- Up green triangles above bars when the price is on an uptrend and down red triangles below bars when the price is on a downtrend.
3.- Arrows with text to indicate the start of an uptrend or downtrend.

The user can enable and disable the indicators and signals as well as set colors and shapes to their liking.

This script also lets the user create alerts for uptrends and downtrends. To create a new alert using this script follow this instructions:

1.- Once you added this script to your chart, go to the alerts panel (right on web or bottom tool bar on the mobile app) and add a new alert (alarm clock icon with a plus sign).
2.- A modal window will open. On the “Condition” dropdown menu select “EMA Crossovers”.
3.- On the next dropdown menu (right below the “Condition” one) you can select from two types of alerts “Uptrend started” and “Downtrend started”.
4.- Lastly you can set all the normal alert options and create the alert.


本着真正的TradingView精神,该脚本的作者将其开源发布,以便交易者可以理解和验证它。为作者喝彩!您可以免费使用它,但在出版物中重复使用此代码受网站规则的约束。 您可以收藏它以在图表上使用。