Technical
What is CCI (Commodity Channel Index)?
An unbounded oscillator measuring how far price has strayed from its own statistical average, typically over 20 days.
Formula
CCI = (Typical Price − SMA(TP, 20)) ÷ (0.015 × Mean Deviation), where TP = (High + Low + Close) ÷ 3
How to Interpret
Readings beyond +100/−100 mark unusually strong moves; a surge through +100 is often read as breakout confirmation rather than a fade signal. Zero-line crosses track shifts in the prevailing bias. The dual usage (breakout confirmation vs. overbought fade) means two traders can read the same print oppositely.
Typical Ranges
±100 marks the 'unusual move' boundary, but CCI is unbounded and can reach ±300 in strong moves — 'extreme' is always relative to the asset's own behavior. Despite the name, it is asset-agnostic.
Find Stocks Using This Signal
Screen US and Indian stocks by CCI in the Technical screener.