Level 2: Reading the MarketInteractive
Support and Resistance
20 min readUpdated Mar 2026
Quick Check
The more times a support level is tested:
Round numbers (e.g., $100, $50) often act as:
The more times a support level is tested:
Round numbers (e.g., $100, $50) often act as:
Support and resistance are price levels where buying or selling pressure repeatedly causes reversals. Support acts as a floor where buyers step in; resistance acts as a ceiling where sellers emerge. These levels form because traders remember significant prices and act on them when price returns.
Markets have memory. When a stock reverses at a certain price, traders who bought, sold, or missed the move remember that level. When price returns, they act on those memories, creating buying or selling pressure that often causes the same reaction. This is and in action.
Zones, Not Lines
S&R are zones, not exact prices. Price might reverse at $99.50 or $100.75, not exactly $100.00. Think in terms of a $1-2 zone, especially on higher-priced stocks. Focus on the 3-5 most significant levels on your chart.
When breaks, it becomes (and vice versa).
Why it works: When support breaks, traders who bought there are underwater. When price rallies back to the broken level, they sell to break even, converting buying pressure into selling pressure.
Human nature creates real price barriers at clean numbers:
Real-World
Watch any stock approach $100 for the first time. It often stalls, pulls back, approaches again, sometimes multiple times. Amazon and Tesla both spent weeks testing major round numbers before breaking through.
The strongest S&R levels are where multiple factors converge at the same price: a horizontal level + a + a round number + a Fibonacci level all near $150 creates a much stronger zone than any single factor. This is .
False Breakouts
Price sometimes pokes above resistance briefly before reversing ("fakeout"). Wait for the candle to CLOSE beyond the level, not just wick through, and confirm with above-average volume.
Key Takeaways
Try This
Pick a watchlist stock and draw the 3 most obvious support and 3 resistance levels on the daily chart. Switch to weekly. Are those same levels visible? The weekly levels carry the most weight.
Set price alerts at key support and resistance levels with Swingfolio and never miss a setup.
Start Tracking FreeDisclaimer
This educational content is for informational purposes only and does not constitute financial advice. Past performance is not indicative of future results. Trading involves risk of loss. You should consult a qualified financial advisor before making investment decisions. Swingfolio is a trade journaling tool, not a financial advisory service.