This question sounds almost embarrassingly simple — until you realise that most people who confidently use both terms in the same sentence couldn't give you a crisp definition of either. And that matters, because misreading which environment you're operating in is a bit like dressing for summer in Melbourne. You're probably wrong, and you'll pay for it.

Here's the direct answer: a bull market is a sustained rise in asset prices — traditionally defined as a 20% gain from a recent low — while a bear market is a sustained fall of 20% or more from a recent peak. The 20% threshold is arbitrary, yes, but it's the benchmark financial markets have broadly agreed on. Think of it as the trading equivalent of the official definition of a recession — imperfect, but universally understood.

CONCEPTA bull market = prices up 20%+ from a recent low, sustained over time — not just a good week.
WARNINGCalling every dip a bear market is as dangerous as calling every rally a bull — context and duration matter enormously.
KEY IDEABull and bear markets describe sentiment and trend together — price alone doesn't tell the whole story.

The animal names have a satisfying logic once you know them. A bull thrusts its horns upward — prices rising. A bear swipes its paws downward — prices falling. What the metaphor also captures is temperament. Bull markets feel optimistic, sometimes euphoric. Bear markets carry fear, caution, and a general sense that everything is quietly on fire. Both states tend to feed themselves through human behaviour far longer than logic would suggest they should.

Bull & Bear Market CycleBull +20%Bear -20%Time →LowHigh

What trips traders up is duration and context. A single bad month isn't a bear market — it's a correction, or possibly just Tuesday. Similarly, a hot three-week rally after a crash is a bear market rally, not a new bull. Traders use the broader trend, volume, and macro backdrop to distinguish between a genuine regime shift and noise. For deeper reading on how these cycles are formally defined, Investopedia's bull market explainer is thorough, and their companion piece on the bear market definition covers the nuance well. The Wikipedia entry on market trends also gives useful historical context on how these classifications evolved.

Your practical takeaway: before placing any trade, ask yourself honestly — which environment are you actually operating in right now? Your strategy should match the regime, not your mood.

Knowing the difference between a bull and bear market won't make you money — but not knowing will almost certainly cost you some.

This content is for educational purposes only and does not constitute financial product advice. Past performance is not indicative of future results. Profit Logic Ltd (ACN 688 669 936) accepts no responsibility for errors or omissions in this content or anywhere on this website. Always seek advice from a licensed financial adviser before making investment decisions.