The thinkorswim platform, developed by TD Ameritrade, is a robust trading tool that caters to both beginner and experienced traders. One of its standout features is the thinkorswim scanner, a powerful screening tool that allows users to filter stocks based on a wide array of criteria. But what about the premarket? Let's delve into how the thinkorswim scanner can be utilized to analyze and make informed decisions during the premarket hours.

Before we dive into the specifics, it's crucial to understand what the premarket is. The premarket, also known as the pre-market session, is the period before the regular market hours when trading can occur. It typically runs from 4:00 AM to 9:30 AM ET. During this time, traders can gauge market sentiment and make strategic moves based on overnight news and events.

Understanding the thinkorswim Scanner in Premarket
The thinkorswim scanner is a versatile tool that can be a trader's best friend during the premarket hours. It provides real-time data and allows users to filter stocks based on various parameters, helping them make informed decisions even before the market opens.

To access the scanner during the premarket, simply log into your thinkorswim account and navigate to the 'Scan' tab. Here, you'll find a plethora of predefined scans or the option to create your own.
Predefined Scans in Premarket

The thinkorswim platform offers a variety of predefined scans that can be particularly useful in the premarket. These scans are designed by TD Ameritrade's trading desk and can provide valuable insights. Some popular premarket scans include 'Most Active Premarket', 'Biggest Movers', and 'Gainers & Losers'.
For instance, the 'Most Active Premarket' scan lists stocks that are seeing the highest volume of trading during the premarket hours. This can indicate significant interest in these stocks and could signal potential trends once the market opens.
Creating Custom Scans for Premarket

While the predefined scans are useful, the real power of the thinkorswim scanner lies in its ability to create custom scans. This allows traders to filter stocks based on criteria that are most relevant to their trading strategy.
To create a custom scan, click on the 'Create a Scan' button on the 'Scan' tab. You can then add various conditions such as price, volume, performance, fundamentals, and more. This can help you identify stocks that align with your trading strategy even during the premarket hours.
Using the thinkorswim Scanner to Analyze Premarket Gaps

One of the key aspects of premarket trading is understanding and analyzing gaps. A gap occurs when a stock opens at a price significantly different from its previous day's close. The thinkorswim scanner can help traders identify and analyze these gaps.
To do this, you can create a custom scan with conditions like 'Gap Up' or 'Gap Down'. This can help you identify stocks that are gapping up or down in the premarket. Understanding these gaps can provide valuable insights into the stock's potential movement once the market opens.




















Analyzing Volume and Interest with the thinkorswim Scanner
Another crucial aspect of premarket trading is understanding the volume and interest in a particular stock. High volume during the premarket can indicate significant interest in a stock and could signal potential trends.
The thinkorswim scanner allows you to filter stocks based on volume. You can set conditions like 'Average Volume' or 'Volume in Last 5 Minutes' to identify stocks that are seeing high trading activity during the premarket.
In the dynamic world of trading, the thinkorswim scanner's ability to provide real-time, customizable data makes it an invaluable tool, especially during the premarket hours. Whether you're a seasoned trader or just starting out, understanding how to use the thinkorswim scanner can significantly enhance your trading strategy. So, why not give it a try and see how it can transform your premarket trading experience?