Support and resistance are price levels where a market tends to stall or reverse. Support is a floor where buyers step in and stop the fall; resistance is a ceiling where sellers step in and cap the rise. Reading these levels is the foundation of technical analysis — they tell you where the important decisions happen.
Master support and resistance and most other chart concepts — breakouts, retests, reversals — suddenly make sense.
Why these levels matter
Support and resistance work because traders remember them. A price where buyers previously stepped in becomes a level where they’ll likely step in again — and everyone watching sees the same line. That shared attention makes the level self-reinforcing. Price approaching support or resistance is approaching a decision point: bounce, or break through.
The break-and-flip: support becomes resistance
Here’s the concept that unlocks everything: when price breaks through a level, that level often flips roles. Broken resistance becomes new support; broken support becomes new resistance. This is why traders wait for a break and then a retest of the flipped level — it’s one of the highest-probability entries in technical analysis.
| Level | What Happens | After a Break |
|---|---|---|
| Support | Buyers defend the floor | Becomes resistance |
| Resistance | Sellers defend the ceiling | Becomes support |
The MTC take: levels are where you make decisions, not predictions
Support and resistance aren’t magic lines that guarantee a bounce — they’re zones where the odds shift and you have to decide. That’s the whole point. Instead of predicting what price will do, you wait for it to reach a level, watch how it reacts, and let that reaction tell you whether to buy the bounce, sell the rejection, or trade the break. Levels give structure; the market’s reaction gives the signal.
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Frequently Asked Questions
What is support and resistance in trading?
Support is a price level where buying tends to halt a decline, acting as a floor. Resistance is a level where selling tends to cap a rise, acting as a ceiling. These levels mark where price has repeatedly reacted, making them key decision points for traders watching for bounces or breaks.
How do you identify support and resistance levels?
Look for price levels the market has touched and reversed from multiple times. Prior swing highs form resistance; prior swing lows form support. Round numbers and previous breakout points often act as levels too. The more times price has reacted at a level, the more significant that level becomes.
What happens when support becomes resistance?
When price breaks below a support level, that level often flips to become resistance — and broken resistance often becomes support. This role reversal happens because traders who watched the old level adjust their orders around it. Traders use this flip to enter on a retest of the broken level.
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