Change from Premarket Open Stock Screener
Track movement from the premarket open in ChartsWatcher. Filter dollar or percentage change and compare early-session direction with overnight gaps.
Understand the metric
What is Change from premarket open?
This filter measures the difference between the current price and today’s premarket opening price. It is available in dollar and percentage form. Using the premarket open as the anchor separates movement after the early session begins from a price gap already present at that first reference, giving another perspective alongside change from the previous close.
An illustrative example
Change from premarket open in practice
Suppose yesterday’s close was $15, today’s premarket open was $16 and the current price is $16.80. Change from premarket open is $0.80, or 5%. Change from the previous close would show $1.80, or 12%, because it includes the initial difference.
Make it part of your workflow
A more deliberate stock screen.
Use ChartsWatcher to compare a stock’s early-session progression with its overall overnight move. Combine change from premarket open with premarket volume, then inspect news timing and the chart to see how activity developed after the early session’s first price reference.
ChartsWatcher lets you combine this filter with other criteria in a toplist and rank the results by the columns you care about. Keep the shortlist beside charts, stock news, and watchlists in your own layout.
Explore the screener / toplistBefore you build
A little more detail.
How do I add Change from premarket open in ChartsWatcher?
Open or create a toplist and add Change from premarket open to its filter configuration. Choose the available options and the bounds that fit your screen. Combine it with other metrics to narrow the results. Filters can also refine which stocks qualify for an alert.
What should I check when interpreting this filter?
The first premarket reference may occur in thin trading. Movement from that anchor does not by itself show whether participation increased across the session.
From an idea to your own scan.
Use Change from premarket open with the other conditions that define your setup. Keep matching stocks, charts, and news together, with a configuration you can refine as you go.