Lessons · Markets · Beginner
Support and resistance basics
Support and resistance are zones where buying or selling pressure has repeatedly shown up - useful context, not magic lines.
7 min read
What you will learn
- Define support and resistance in plain terms
- Use zones instead of exact pennies
- Avoid treating lines as guarantees
Key terms
- Support
- A price area where buying interest has historically slowed a decline.
- Resistance
- A price area where selling interest has historically slowed a rally.
- Breakout / breakdown
- A decisive move through a level, ideally with follow-through.
1. Why levels form
Traders remember prior highs and lows. Orders cluster there. That memory can pause or reverse price - until new information overwhelms it.
2. Zones, not razor lines
Treat levels as areas. Exact pennies rarely matter on delayed charts; the region where price repeatedly reacted does.
3. False breaks
Price can spike through a level and reverse. Wait for follow-through before treating a move as decisive.
Prior high as resistance
A stock rallies to $100, stalls, and falls. Weeks later it returns to $98-$102. That zone is resistance until buyers push and hold above it.
Common mistakes
- Drawing too many lines until the chart is noise
- Ignoring fundamentals when a level finally breaks on real news
- Sizing huge on the first tick through a level
Try this on StockWatch
- Mark prior swing highs/lows on a quote chart
- Note how price behaved into known catalyst dates
- Compare a clean trend name vs a choppy range name