1.     What is a Pre/Post-Market Screener?
This function allows you to quickly obtain any market mover before/ after trading hours.
The most typical cause for large stock movement before or after trading hours are earning report. Many companies release their earnings before or after trading hours which would cause a difference in their value.
2.     How to locate the function?
App version:
“Market” tab -->“Pre/Post-Market” icon --> Select “Pre-Market” or “Post-Market”.
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Too many of us are looking for clever investment strategies when the most direct route is right under our nose. Paying attention to the fundamentals is basic to outperforming the market, yet often overlooked.
Fundamentals include the basic qualitative and quantitative information that contributes to the financial or economic well-being and the subsequent financial valuation of a security. Analysts and investors examine these fundamentals to develop an estimate as to whether the underlying asset is considered a worthwhile investment, and if there is fair valuation in the market. 
Moomoo offers comprehensive, accurate and timely fundamentals data to carry out your own research in confidence...

Chart analysis is a technical trading method employed to evaluate investments and identify trading opportunities by analyzing statistical trends gathered from trading activity, such as price movement and volume. It helps guide traders to what is most likely to happen given past information.
Analyzing stock charts can be complicated, especially for beginners. Ever since prices first began to be charted, investors have been devising strategies for interpreting their movements. To forecast the future price movements, you have to correctly identify overall trends, support lines, resistance lines, etc. However, there is only one fundamental principle for all technicians: "WHAT is more important than WHY." To make this easier now, we offer a tailored tool — Similar Charts for all beginners. 
How to find Similar Charts on Moomoo?
1. iOS & Android: 
Tap setting button on top right corner of a chart, then tap on 'Similar Charts'....