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How to Read RSI and MACD: Technical Analysis for Beginners

โฑ 10 min read ยท Last updated July 2026 ยท Try Fintiq Free

What is Technical Analysis?

Technical analysis is the study of a security's price and volume history to identify patterns, momentum, and probabilities about future price movements. It is not about predicting the future with certainty โ€” no method can do that โ€” but about identifying conditions where the probability of a particular outcome is meaningfully higher than average.

This guide focuses on two of the most widely used technical indicators in the world: RSI (Relative Strength Index) and MACD (Moving Average Convergence Divergence). Each chart below shows exactly how these indicators look on a real price series โ€” not abstract theory, but the actual signals you will see on screen.

Technical and fundamental analysis are complementary. Fundamental analysis tells you what to buy. Technical analysis tells you when to buy it.

RSI โ€” The Relative Strength Index

The Formula

RSI = 100 โˆ’ [100 รท (1 + RS)] Where: RS = Average Gain over N periods รท Average Loss over N periods Default period (N): 14 days Scale: 0 to 100 | Overbought: above 70 | Oversold: below 30

The formula calculates the ratio of average gains to average losses over the past 14 periods. If the stock has risen strongly and consistently, RS is high and RSI pushes toward 100. If it has fallen hard, RSI drops toward 0. The indicator always oscillates between 0 and 100.

Reading RSI: Overbought and Oversold

RSI above 70 โ€” Overbought: The stock has risen strongly relative to recent history. However โ€” and this is the most important thing to understand โ€” overbought does not mean "sell now." In a strong uptrend, RSI can stay above 70 for weeks or months. Overbought is a caution flag, not a sell signal.

RSI below 30 โ€” Oversold: The stock has fallen sharply. Again, oversold does not automatically mean "buy now." In a strong downtrend, RSI can remain below 30 as selling continues.

The chart below shows exactly this โ€” a stock in a clear uptrend where RSI stays elevated above 70 for an extended period. A trader who sold every time RSI crossed 70 would have missed the entire move.

Chart 1 โ€” RSI in a Strong Uptrend
Simulated stock price (top) with RSI (bottom). Note: RSI stays above 70 for weeks without the price reversing.
Stock Price
RSI
Overbought (70)
Oversold (30)

โš ๏ธ The shaded orange zone shows where RSI is above 70 (overbought). The price kept rising throughout. Selling at the first overbought signal would have meant missing a 28% gain.

UK Example โ€” Rolls-Royce Holdings (RR.) in 2023: After years of underperformance, Rolls-Royce RSI fell to the high 20s โ€” deeply oversold. For investors who also understood the fundamental turnaround underway, this technical signal confirmed the timing. In the year that followed, Rolls-Royce gained over 200%, becoming the best-performing FTSE 100 stock of 2023. The RSI did not cause the rally โ€” the business improvement did โ€” but it flagged the extreme selling pressure that marked the turning point.

RSI Divergence: The Most Powerful Signal

The most valuable RSI signal is not the absolute level, but divergence โ€” when price and RSI move in opposite directions. Divergence tells you that the momentum behind the current price move is weakening, even though price has not yet reversed.

Bullish Divergence: Price makes a new lower low, but RSI makes a higher low. Even though price fell further, the selling momentum behind that fall was weaker. The market is running out of sellers โ€” a potential reversal upward.

Bearish Divergence: Price makes a new higher high, but RSI makes a lower high. The buying momentum behind the new high was weaker than before. The market may be running out of buyers โ€” a potential reversal downward.

Chart 2 โ€” Bullish RSI Divergence
Price makes lower lows (falling). RSI makes higher lows (rising). This is bullish divergence โ€” a warning that the downtrend is losing momentum.
Stock Price (lower lows)
RSI (higher lows โ€” diverging)

โœ… The green arrows show where the divergence signal formed. Price eventually reversed and rallied strongly from the final low โ€” the RSI had been warning this was coming for several weeks.

MACD โ€” Moving Average Convergence Divergence

The Three Components

MACD Line = 12-period EMA โˆ’ 26-period EMA Signal Line = 9-period EMA of the MACD Line Histogram = MACD Line โˆ’ Signal Line Standard settings: 12, 26, 9

The MACD Line measures the gap between short-term and long-term momentum. Positive = short-term momentum stronger than long-term (bullish). Negative = long-term momentum dominates (bearish).

The Signal Line is a smoothed average of the MACD Line. When the MACD Line crosses above the Signal Line, it is a bullish signal. When it crosses below, it is bearish.

The Histogram shows the gap between MACD Line and Signal Line as bars. Growing bars = accelerating momentum. Shrinking bars = fading momentum โ€” often an early warning of an upcoming crossover.

Chart 3 โ€” MACD Components Explained
Stock price (top panel). MACD Line, Signal Line, and Histogram (bottom panel). A bullish crossover occurs at day 22.
Price
MACD Line
Signal Line
Histogram (positive)
Histogram (negative)

๐Ÿ“Œ Watch the histogram bars shrink toward zero before the crossover happens โ€” this is the earliest warning of the momentum shift, often 2โ€“3 days before the MACD line actually crosses the signal line.

Key MACD Signals

Bullish Crossover: MACD Line crosses above the Signal Line. Short-term momentum is strengthening. BUY SIGNAL

Bearish Crossover: MACD Line crosses below the Signal Line. Selling pressure is strengthening. SELL SIGNAL

Zero Line Cross: When MACD crosses above zero, the 12-period EMA has crossed above the 26-period EMA โ€” the short-term trend is now above the long-term trend. A bullish structural signal.

Histogram shrinking: Even before a crossover, watch the histogram bars getting shorter. This is your earliest warning. EARLY WARNING

Combining RSI and MACD: The Confluence Method

Using RSI and MACD together dramatically improves signal quality. The principle is confluence: when two independent indicators point to the same conclusion simultaneously, the probability of a genuine signal increases substantially. One indicator alone can produce false signals. Two indicators agreeing filters most of them out.

High-Probability Bullish Setup

Chart 4 โ€” RSI + MACD Confluence Signal
A real-world scenario: both RSI divergence and MACD bullish crossover appear at the same support level. This is the highest-quality setup.
Price
RSI
MACD Line
MACD Signal

โœ… At day 18, both signals fired simultaneously: RSI showed bullish divergence AND MACD produced a bullish crossover. Price rallied 22% from that point. Neither signal alone would have been as convincing.

When Signals Conflict โ€” Wait

If RSI is oversold (suggesting a potential buy) but MACD is in a strong downtrend with no sign of a crossover โ€” the signals conflict. The right response is to wait. Acting on conflicting signals is one of the most reliable ways to take unnecessary losses. Patience until confluence emerges is what separates consistent technical traders from impulsive ones.

The 200-Day Moving Average: Your Third Check

Add a third dimension to make RSI and MACD signals far more reliable: the direction of the long-term trend, measured by the 200-day moving average (200-DMA).

The three-layer framework: RSI confirming momentum + MACD showing directional signal + 200-DMA confirming the long-term trend. All three pointing in the same direction = highest-probability setup. This is the foundation of professional technical analysis โ€” not chart-gazing, but systematic signal confirmation.

How Fintiq's Technical Analysis Tab Works

Fintiq's Technical tab applies this entire framework automatically to any stock across global markets. Enter any ticker โ€” BP, Lloyds, Apple, NVIDIA โ€” and the platform instantly displays:

You do not calculate any of this manually. The platform does the computation instantly, so you focus on interpreting signals rather than arithmetic.

Common Mistakes to Avoid

  1. Treating RSI above 70 as an automatic sell signal. As Chart 1 shows, RSI can stay overbought for weeks in a strong uptrend. Selling every time RSI hits 70 is a reliable way to miss large gains.
  2. Ignoring the trend direction. Taking bullish RSI signals when the stock is in a clear downtrend (below its 200-DMA) is fighting the dominant force in the market. Always establish trend direction first.
  3. Acting on MACD crossovers in sideways markets. MACD performs best in trending markets. In sideways conditions, it generates frequent crossovers in both directions โ€” producing many small losses (the "whipsaw" problem).
  4. Acting on a single signal in isolation. One indicator saying "buy" is a hint. Two independent indicators both saying "buy" at the same time is a signal. Wait for confluence.
  5. Using technical analysis in isolation from fundamentals. A technically perfect bullish setup in a company with deteriorating fundamentals will often fail. Technical signals work best when the underlying business is sound.
  6. Treating indicators as certainties. No indicator is right 100% of the time. The goal is to find setups where the probability of success is above average โ€” not to find a rule that always works.

What to Do Now

Open Fintiq and navigate to the Technical Analysis tab. Pick three or four stocks you already know โ€” companies in the news or in your portfolio. For each one, ask yourself: Is RSI confirming or diverging from the price trend? Is the MACD histogram growing or shrinking? Is the stock above or below its 200-day moving average?

You do not need to trade based on this โ€” just practice reading the charts. After two weeks of daily observation, the patterns in Charts 1โ€“4 above will start jumping out at you on real data. That's when technical analysis becomes genuinely useful as a timing tool on top of your fundamental research.

Apply this on real stocks now

Fintiq's Technical Analysis tab calculates RSI, MACD, Bollinger Bands and Moving Averages automatically for any global stock. Free to use.

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