Change from Open Stock Screener
Separate intraday movement from overnight gaps with ChartsWatcher. Screen dollar or percentage change from the open and combine it with volume.
Understand the metric
What is Change from open?
Change from open compares the current stock price with today’s opening price, expressed in dollars or percent. It helps describe what happened after the opening reference instead of combining that move with the overnight gap. ChartsWatcher documents an important premarket exception: before today’s regular open, yesterday’s opening price is used as the reference.
An illustrative example
Change from open in practice
If yesterday’s close was $20, today’s open was $22 and the current price is $21, change from open is −$1, or about −4.55%. The stock remains above yesterday’s close, but this filter reveals that it has declined from the opening price.
Make it part of your workflow
A more deliberate stock screen.
Place change from open beside change from close in a ChartsWatcher toplist to compare the session’s direction with the broader daily move. Pair it with minutes in market to focus an investigation on the opening period or a later portion of the session.
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 open in ChartsWatcher?
Open or create a toplist and add Change from 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?
During premarket this filter uses yesterday’s open. Interpret its reference before comparing it with a dedicated premarket-open or previous-close measurement.
From an idea to your own scan.
Use Change from 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.