What Rolling ATM means

ATM means at-the-money. A Rolling ATM chart is designed to keep the displayed option-premium series focused around the market's near-the-money area as the underlying moves. OptionTerminal applies a consistent internal process to maintain that rolling view across the selected expiry and interval.

Why traders use a rolling view

A fixed chart follows one contract selection, while a rolling chart adapts over time. This can make it easier to study how the near-the-money premium area behaves across a session without manually choosing a new pair whenever the underlying moves materially.

What Combined mode represents

Combined mode displays the selected call and put premiums together as one candlestick series. The chart is intended to show premium expansion, contraction, trend, and intraday range for the active rolling selection.

Rolling versus fixed charts

Rolling and fixed charts can have different shapes even when they use the same market and expiry. A fixed chart remains tied to the user's chosen contracts, whereas a rolling chart follows the selected rolling mode according to OptionTerminal's internal rules.

How to read the chart

Use the candle trend, VWAP, moving averages, recent-low distance, Price Range, and Custom Range tools to study the premium series. Move the crosshair across the chart to inspect the contracts represented by a particular candle where that information is available.

Important limitations

Contract activity, provider coverage, expiry, and market conditions affect the available history. Different platforms can also use different data sources and rolling methods, so their charts may not match exactly. OptionTerminal does not publish its detailed selection thresholds, transition rules, or continuity implementation.