Market Structure

Bull Market

A sustained period where stock prices are rising or expected to rise, typically defined as a 20%+ gain from recent lows.

Explained Simply

A bull market is characterized by rising prices, investor optimism, and strong economic fundamentals. Bull markets are driven by expanding corporate earnings, low interest rates, technological innovation, or a combination of factors. They can last months to years — the 2009-2020 bull market ran for 11 years. During bull markets, momentum strategies tend to outperform, dip-buying works well, and most stocks rise (making stock selection less critical). The danger is complacency — bull markets create the illusion that making money is easy, leading traders to take excessive risk right before a reversal.

How Tradewink Uses Bull Market

Tradewink's MarketRegimeDetector uses HMM (Hidden Markov Model) analysis on SPY to identify the current market regime. In bull market regimes, the AI increases position sizes, favors momentum and breakout strategies, and sets wider trailing stops to let winners run. The system also monitors for regime transitions — early detection of a shift from bull to bear is critical for protecting profits.

Related Terms

Learn More

See Bull Market in action

Tradewink uses bull market as part of its AI trading signal pipeline. Start getting signals that use this concept to find real opportunities.