Support and resistance

Where price tends to bounce or break — and how to draw them.

TL;DR

Support is where buyers tend to step in. Resistance is where sellers take over. The most-watched lines on any chart — and the most useful for defining entries, stops, and targets.

How levels form

Self-reinforcing. A price buyers defended once gets bought again because traders remember it. Algos place orders there. Stops cluster just beyond. The level becomes 'real' through participation.

Drawing them well

Zones, not exact prices. At least two prior touches. More touches = stronger. Round numbers ($100, $50K) carry psychological weight. Wicks count — price reached those highs/lows.

Polarity

Once broken, support often becomes resistance (and vice versa). The same level traps buyers who need to exit at break-even when price reclaims it — why retests are powerful setups.

Worked example

Bitcoin's $30K support

BTC tested $30K four times in 2023 and bounced. Then broke through to $25K in early 2024. By late 2024, rallies stalled exactly at $30K.

12023 tests #1-4Touched $30K, bounced each time
22024 breakFailed, dropped to $25K
3RecoveryRallied to $30K and stalled
4OutcomeFormer support → resistance (polarity flip)

Takeaway

Multi-touch levels are reliable until they break. Once broken, expect polarity flip on the next test.

Common mistakes

What to avoid

!Drawing 12 lines — pick 2–3 most-tested
!Single-touch levels — needs at least two
!Ignoring round numbers — psychological levels work even without prior touches
!Treating breaks as immediate trend change — often retest before continuation

Self-check

Test yourself

Q1What does 'polarity flip' mean?+

Broken support becomes resistance (or vice versa) on the next test.

Q2Why are levels with more touches stronger?+

More participants remember and trade them; orders cluster, making the level self-reinforcing.

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