If you only learn one concept in technical analysis, make it support and resistance. These price levels — where the market has historically shown a tendency to reverse — are the backbone of almost every TA strategy. Here's how to identify them accurately and trade around them.
Why support and resistance work
Support and resistance work because of collective human memory. Every trader who bought at €50 and watched it fall to €40 is waiting for price to return to €50 so they can break even. Every trader who sold at €50 and watched it rise is kicking themselves. When price returns to €50, both groups act — creating a self-fulfilling prophecy that the level will hold.
Institutions (banks, hedge funds) also place large orders at round numbers and previous highs/lows, reinforcing these levels further.
How to draw support and resistance correctly
The most important rule: support and resistance are zones, not exact lines. Price doesn't respect €50.00 to the cent — it respects the zone around €49.50–€50.50. Draw your levels through the bodies of candles, not the wicks. Wicks show emotional spikes that are usually fleeting.
Look for: previous highs and lows (swing highs and swing lows), round numbers (€50, €100, €200), areas of congestion (where price traded sideways for an extended period), and the 50% and 61.8% Fibonacci retracement levels (where price often pauses during retracements).
The role reversal principle
One of the most powerful TA concepts: when a support level is broken (price closes convincingly below it), that former support becomes the new resistance. And vice versa — broken resistance becomes new support.
Why? The traders who were buying at the support level are now trapped in losing positions. When price rises back to that level, they sell to exit at breakeven, creating selling pressure at the former support. This 'role reversal' creates high-probability trading setups.
Trading support and resistance
There are two primary ways to trade these levels: (1) Bounce trades: Enter when price touches a support/resistance level and shows signs of reversing (a rejection candle, RSI divergence). Place your stop just beyond the level. Target the next opposing level. (2) Breakout trades: Enter when price breaks convincingly through a level with strong volume. Place your stop just inside the broken level. Use the 'measured move' concept — project the prior range as the target.
The highest-probability setups occur when multiple factors align at the same level: a previous swing high/low, a round number, a Fibonacci level, and a moving average all at the same price.