A foundational technical analysis framework that identifies market trends through three phases (primary, secondary, minor) and uses index confirmation to validate trend direction.
Dow Theory, developed by Charles Dow (co-founder of the Wall Street Journal and creator of the Dow Jones Industrial Average) in the late 1800s, is the foundation of modern technical analysis. Though originally formulated for US markets, its principles apply universally, including to Indian markets.
The theory identifies three types of market trends: primary trends (lasting months to years — equivalent to a Bull Market or Bear Market), secondary trends (lasting weeks to months — Correction within a primary trend), and minor trends (lasting days — daily fluctuations). The primary trend is the "tide," secondary trends are "waves," and minor trends are "ripples."
Six core tenets of Dow Theory: (1) The market discounts everything — prices reflect all known information. (2) Three types of trends exist as described above. (3) Primary trends have three phases — accumulation (smart money buying), public participation (broader market joining), and distribution (smart money selling). (4) Indices must confirm each other — in India, if the Nifty 50 makes a new high but Bank Nifty does not, the bullish signal is unconfirmed. (5) Volume must confirm the trend — rising volume in the direction of the trend validates it. (6) Trends persist until clear reversal signals appear.
Applying Dow Theory to Indian markets: if the Nifty 50 makes a sequence of higher highs and higher lows, the primary trend is bullish. A Correction (secondary trend) occurs when the Nifty pulls back to the previous swing low without breaking below it. The primary trend reverses only when the Nifty makes a lower low below the previous swing low, confirmed by Bank Nifty also making a lower low.
While Dow Theory is over a century old and predates modern indicators like RSI, MACD, and Bollinger Bands, its core principles remain relevant. The concepts of trend identification, confirmation, volume analysis, and trend persistence form the basis of most technical trading systems. Many Indian market analysts use Dow Theory's framework for their top-down market analysis before applying more specific indicators for entry and exit timing.