Support & Resistance

Support and resistance are the most fundamental concepts in technical analysis. Every indicator, pattern, and strategy eventually ties back to these two ideas. Understand them well and you will have a framework for reading any chart.

• Support — a price level at which buying interest is strong enough to prevent the stock from falling further. It acts as a floor.
• Resistance — a price level at which selling pressure is strong enough to prevent the stock from rising further. It acts as a ceiling.

Think of support and resistance as supply and demand in action. At support, demand exceeds supply — more buyers than sellers — so the price bounces. At resistance, supply exceeds demand — more sellers than buyers — so the price stalls or turns down.

These levels are not random. They are price points where traders have strong memories. If SBIN bounced off Rs.550 three times in the past year, every trader watching SBIN remembers that level. When the price approaches Rs.550 again, buyers step in because they expect a bounce — and their collective action creates the bounce.

Resistance is a price level where a stock repeatedly struggles to move higher. Every time the price approaches this level, selling pressure increases and pushes it back down. The more times a resistance level has been tested and held, the stronger it becomes.

Real Example — RELIANCE (Reliance Industries)

Consider RELIANCE during mid-2023. The stock approached the Rs.2,600 level on multiple occasions:

• Attempt 1: RELIANCE rallied from Rs.2,350 to Rs.2,590, stalled, and fell back to Rs.2,440.
• Attempt 2: A few weeks later, the stock climbed to Rs.2,605, briefly crossed the line, but closed at Rs.2,585 and retreated to Rs.2,480.
• Attempt 3: Another rally took it to Rs.2,595. Sellers stepped in again and the stock pulled back to Rs.2,510.

Each failed attempt at Rs.2,600 reinforced the resistance level. Traders who bought near the previous peaks and were stuck at a loss became sellers when the price returned to their entry level (happy to break even), adding more supply at that zone. This is why resistance levels tend to strengthen with each test.

What Happens When Resistance Breaks?

When a stock finally closes decisively above a resistance level (not just an intraday spike), it is called a breakout. Breakouts often lead to sharp, fast moves because all the sellers at that level have been absorbed, and short-sellers scramble to cover their positions. When RELIANCE eventually broke above Rs.2,600 on strong volume, it moved quickly to Rs.2,750 as there was no overhead supply to stop it.

Support is the price floor where buying interest consistently emerges. Buyers remember that the stock bounced from this level before, and they place orders in anticipation of another bounce. This collective expectation becomes a self-fulfilling prophecy.

Real Example — HDFCBANK (HDFC Bank)

HDFCBANK found consistent buying support around the Rs.1,500 zone during a period of market volatility:

• Test 1: The stock fell from Rs.1,650 to Rs.1,505 and bounced back to Rs.1,580.
• Test 2: After a broader market correction, HDFCBANK slipped to Rs.1,498, closed at Rs.1,510, and recovered to Rs.1,600 over the next week.
• Test 3: A third decline brought it to Rs.1,508. Again, buyers stepped in and the stock reversed to Rs.1,570.

Each time the stock touched the Rs.1,500 zone, the bounce confirmed that this was a level where institutional and retail buyers had standing interest. The more times a support level holds, the more traders trust it — which paradoxically makes it both stronger and more dangerous when it eventually breaks.

What Happens When Support Breaks?

When a stock closes decisively below a support level, it is called a breakdown. All the buyers who were supporting the stock at that level are now sitting on losses, and many will sell to cut their losses. This selling accelerates the decline. A support break is often followed by a swift move to the next support level below.

Drawing accurate support and resistance levels is a skill that improves with practice. There is no single "correct" way, but the following guidelines will help you get started:

1. Identify at least 3 price action zones — Look for areas where the price has reversed direction at least three times. A level tested twice is tentative; three or more tests make it reliable. Open a daily chart of INFY and look back 12 months — you will likely spot 2-3 clear horizontal zones where the price has bounced or stalled repeatedly.
2. Use closing prices — While intraday highs and lows provide context, closing prices are more reliable for drawing S&R levels. An intraday spike through resistance that closes back below it is a failed test, not a breakout. The close represents where traders were willing to hold positions overnight — a much stronger signal of conviction.
3. Think in zones, not exact lines — If TATAMOTORS bounced at Rs.620, Rs.615, and Rs.622 on three separate occasions, the support zone is Rs.615-622, not a single line at Rs.620. Draw a narrow band rather than a razor-thin line.
4. Look back 6-12 months minimum — S&R levels from recent months are more relevant than those from years ago. However, very strong levels (like NIFTY 50 round numbers — 18,000, 20,000) can remain relevant for years. Start with a 6-month daily chart and extend if needed.
5. Mark round numbers — Stocks tend to find support and resistance at psychologically significant round numbers. Rs.500, Rs.1,000, Rs.2,000, Rs.5,000 — these levels attract orders because traders naturally set buy and sell targets at round figures. SBIN at Rs.600, ITC at Rs.500, and BAJFINANCE at Rs.7,000 are all examples of round-number S&R zones.

The Role Reversal Principle

When a stock breaks through a support level, that level often becomes resistance on any bounce. When it breaks through resistance, that level often becomes support on any pullback. This is one of the most useful and reliable principles in all of technical analysis.

For example, if WIPRO has strong resistance at Rs.460 and finally breaks above it to trade at Rs.480, the Rs.460 level now becomes support. On any pullback toward Rs.460, you can expect buying interest to emerge. This gives traders a low-risk entry point on the pullback.

At this point in the module, you have covered single-candle patterns, multi-candle patterns, and now support and resistance. It is time to bring these tools together into a practical checklist that you will use before every trade.

The idea is simple: the more items on the checklist that align in your favour, the higher the probability of the trade working out. No single signal is sufficient on its own — but when multiple signals agree, the conviction rises substantially.

The TA Checklist (So Far)

As an example, suppose you see a bullish engulfing on TATAMOTORS at Rs.620, and you know that Rs.615-622 is a zone that has provided support three times previously. The engulfing pattern is Item 1. The stock has been falling for six sessions (Item 2 confirmed). The stoploss at Day 2's low is Rs.612, right below the support zone (Item 3 confirmed). And Day 2's volume is 1.4x the 20-day average (Item 4 confirmed). All four items check out — this is a high-quality setup.