20 Best Trading Indicators you NEED to know

LearnSep 14, 2025
Timothy Cahill
20 Best Trading Indicators you NEED to know

These 20 trading indicators help you measure trend, momentum, volume, and volatility so you can plan entries, exits, and risk with clear rules. You don’t need all of them—most traders do best by mastering 2–3 core indicators (plus a simple risk tool like ATR) and using them consistently.

Most traders overwhelm themselves trying to use every indicator available. That’s backwards. The best traders pick 2–3 primary indicators and know them cold. They understand when each signal matters and—more importantly—when to ignore them.

What is VWAP and how do traders use it intraday?

VWAP is the average price weighted by volume, showing where most shares traded during the session. Intraday traders use it as a “fair price” line for trend bias, entries, and mean reversion.

VWAP is the average price weighted by volume, showing where most shares traded throughout the session.

Institutions use VWAP as their execution benchmark—trades above VWAP are considered poor fills, below VWAP are good fills. This creates natural support in uptrends and resistance in downtrends. When price crosses VWAP with volume, algorithms pile in.

The standard VWAP resets daily, but anchored VWAP from significant highs/lows reveals hidden levels institutions defend. Price rejecting VWAP three times? That’s institutional order flow. First touch typically holds; third touch typically breaks.

Example: In an uptrend, price pulls back to VWAP, prints a higher low, then reclaims VWAP on rising volume—many traders treat that as a long trigger with a stop below the pullback low.

Advanced strategy: Trade VWAP bands (1 and 2 standard deviations). In trending markets, price walks the upper band. Mean reversion plays target moves from 2SD back to VWAP—an average 1.8% move in large caps.

VWAP chart showing price candles interacting with the VWAP line acting as support.

How do you use ATR to measure volatility and set stops?

ATR measures how much price typically moves. Traders use it to set stop losses and position size so risk stays consistent across calm and volatile stocks.

Average True Range (ATR) is a volatility indicator measuring the average price movement over a specified period, typically 14 bars.

ATR doesn’t predict direction—it tells you how far price typically moves. A stock with a $2 ATR moves $2 on average each day. Most profitable trading strategies use ATR for stop placement: 1.5x ATR below entry for longs gives your trade room to breathe without excessive risk.

  • Stop placement example: Entry $100, ATR $2 → 1.5x ATR stop = $3 → stop at $97.

  • Position sizing example: If you risk $300 per trade and ATR-based stop is $3, position size ≈ 100 shares ($300 ÷ $3).

Here’s the killer application: ATR-based position sizing. Divide your risk amount by the ATR to normalize positions across different volatility levels. Trading AAPL with 0.5 ATR? Take more shares. Trading TSLA with 15 ATR? Scale down. This single adjustment cuts drawdowns by 30% on average.

Warning: ATR spikes during earnings and news events. What looks like a safe 1x ATR stop becomes a guaranteed shakeout when volatility doubles overnight.

ATR chart showing shifts between high and low volatility.

How do traders use the Simple Moving Average (SMA) for trend and support?

SMA shows the average closing price over a set period. Traders use it to define trend direction and to find dynamic support and resistance.

The Simple Moving Average (SMA) is a technical indicator that calculates the arithmetic mean of closing prices over a specified number of periods.

SMAs reveal the underlying trend by smoothing price noise. The 50-day SMA defines intermediate trends; the 200-day marks major trends.

  • Trend filter: Price above 200 SMA = long bias; below 200 SMA = short/avoid longs.

  • Support/resistance: In an uptrend, pullbacks to the 50 SMA often act like support.

Most traders use SMAs wrong. They buy when price crosses above, sell when it crosses below. The higher-quality use is treating SMAs as dynamic support/resistance. Price bouncing off the 50 SMA in an uptrend is a common “gift entry.” Third touch often fails—plan accordingly.

Strategy tip: The 50/200 SMA golden cross signals potential trend changes. Watch for volume confirmation—crosses with above-average volume show institutional participation, while low-volume crosses often fail.

Chart with price candles and a 50-day simple moving average line.

How does EMA help you spot momentum shifts faster?

EMA reacts faster than SMA because it weights recent prices more. Traders use it for quicker momentum signals, especially on shorter timeframes.

The Exponential Moving Average (EMA) is a moving average that applies greater weight to recent prices, making it more responsive than simple moving averages.

EMAs catch trends earlier but generate more false signals. The 9 and 21 EMAs frame short-term momentum—when the 9 crosses above the 21, algorithms trigger buy programs. The 12/26 EMA combo powers the MACD, making these levels widely watched.

EMA ribbons (8, 13, 21, 34, 55) reveal trend strength through spacing. Expanding ribbons = accelerating trend. Contracting ribbons = momentum dying.

Warning: EMAs whipsaw in ranging markets. Switch to slower tools (like SMAs) when price lacks direction.

Chart showing price candles with EMA and SMA lines.

How do you use MACD crossovers, histogram, and zero-line signals?

MACD compares two EMAs to show momentum and trend changes. Traders use signal-line crossovers, histogram shifts, and zero-line crosses to time entries and confirm trend.

Moving Average Convergence Divergence (MACD) is a trend-following momentum indicator that shows the relationship between two exponential moving averages of prices.

The MACD line (12 EMA - 26 EMA) crossing above the signal line (9 EMA of MACD) generates buy signals. Histogram divergences can flag reversals before lines cross.

  • Zero-line cross: MACD above zero = bullish structure; below zero = bearish structure.

  • Practical filter: Use weekly MACD to filter daily signals (take daily longs when weekly MACD is rising).

Warning: MACD lags in strong trends and whipsaws in ranges. When histogram bars shrink near zero, expect compression and fewer clean signals.

Chart showing price candles with MACD lines and a histogram indicating momentum shifts.

How does RSI identify overbought/oversold and divergences?

RSI measures momentum on a 0–100 scale. Traders use it for overbought/oversold context and for divergence signals that often appear before reversals.

The Relative Strength Index (RSI) is a momentum oscillator that measures the speed and magnitude of price changes to evaluate overbought or oversold conditions.

RSI above 70 signals overbought; below 30 indicates oversold. In strong trends, RSI can stay extreme for long periods, so divergences matter more than the raw level.

  • Bearish divergence: Price makes higher highs while RSI makes lower highs.

  • Bullish divergence: Price makes lower lows while RSI makes higher lows.

  • Trend filter: RSI above 50 = bull mode; below 50 = bear mode.

RSI chart showing overbought, oversold levels and divergence between price and RSI.

How do Bollinger Bands measure volatility and spot breakouts?

Bollinger Bands expand and contract with volatility. Traders use squeezes to spot upcoming expansion and use band behavior to judge trend vs mean reversion.

Bollinger Bands are a volatility indicator consisting of a middle band (SMA) and two outer bands plotted at standard deviation levels above and below the middle band.

The squeeze—when bands narrow—often precedes a big move. Direction comes from the breakout and follow-through, not from the squeeze itself.

  • Trend behavior: Price can “walk” the upper band in uptrends and the lower band in downtrends.

  • Mean reversion: Outside-band moves that fail and snap back often revert toward the middle band.

Advanced strategy: Double Bollinger Bands (1 SD and 2 SD) create zones. Price between 1–2 SD upper bands = strong trend. Reversal from 2 SD with volume = mean reversion opportunity.

Chart showing price candles with Bollinger Bands highlighting exhaustion and outside-band moves.

How do Fibonacci retracements find support and resistance levels?

Fibonacci retracements mark common pullback levels inside a trend. Traders use them to plan entries, stops, and targets around likely support/resistance zones.

Fibonacci retracements are horizontal lines indicating potential support and resistance at key Fibonacci levels before price continues in the original direction.

Draw from swing low to high in uptrends, high to low in downtrends. The 38.2%, 50%, and 61.8% levels matter most.

Example: If a stock rallies from $100 to $120, the 50% retracement is $110. Traders often watch for a reaction there—especially if it lines up with a moving average or prior resistance.

Smart money watches Fibonacci confluences. When the 50% retracement aligns with a moving average and previous resistance, that’s a higher-quality decision zone.

Fibonacci retracement chart showing price reacting to key retracement levels.

How do pivot points set intraday support and resistance levels?

Pivot points calculate intraday support and resistance from the prior session’s high, low, and close. Day traders use them as pre-planned levels for targets and reversals.

Pivot Points are a technical indicator that calculates potential support and resistance levels based on the previous period's high, low, and closing prices.

The central pivot (P) acts as the day’s balance point. R1/S1 are common test levels. R2/S2 mark range extensions.

  • Volume read: Approaching R1 on declining volume often rejects; breaking R1 with a volume surge often targets R2.

  • Formula: P = (High + Low + Close)/3

Warning: During major news, pivot levels lose usefulness because volatility breaks “normal” range assumptions.

Chart showing price action with pivot point levels labeled.

How does On-Balance Volume (OBV) spot accumulation and distribution?

OBV tracks whether volume is flowing into up closes or down closes. Traders use it to confirm breakouts and to spot accumulation/distribution when price is flat.

On-Balance Volume (OBV) is a cumulative indicator adding volume on up days and subtracting volume on down days, revealing buying and selling pressure.

When OBV rises while price consolidates, accumulation is happening. The opposite—falling OBV during sideways price action—signals distribution.

The indicator works best on liquid stocks where volume is reliable. Thin names give false signals.

OBV chart showing price candles with volume line divergence marked at two points.

How does the Money Flow Index (MFI) track buying and selling pressure?

MFI is a volume-weighted momentum oscillator. Traders use it to judge whether buying pressure is real (with volume) or weak (without volume).

The Money Flow Index (MFI) is a momentum oscillator that incorporates both price and volume data to measure buying and selling pressure, oscillating between 0 and 100.

MFI acts like volume-weighted RSI. Divergences matter most: price making new highs while MFI trends lower often signals weakening demand.

  • Common levels: Above 80 = overbought pressure; below 20 = oversold pressure.

  • Cleaner entry: Wait for MFI to turn back up (cross above 20) instead of buying just because it hit an extreme.

Chart showing price candles with the Money Flow Index (MFI) indicator trending downward below key levels.

How do you use ADX to measure trend strength?

ADX measures trend strength, not direction. Traders use it to decide whether to use trend-following tools (high ADX) or mean reversion tools (low ADX).

Average Directional Index (ADX) is a trend strength indicator measuring how strongly price is trending, regardless of direction.

  • ADX > 25: trending conditions

  • ADX < 20: ranging conditions

Combine with +DI and -DI lines: when +DI crosses above -DI with ADX rising above 25, trend conditions are strengthening.

Most traders use ADX wrong by entering when it’s already high. Watch for ADX turning up from below 20—that’s often the start of a trend.

ADX indicator showing trend strength rising during an uptrend and weakening as ADX falls.

How does the Stochastic Oscillator signal overbought, oversold, and divergence?

Stochastic compares the close to the recent range to show momentum shifts. Traders use it to time reversals in ranges and to spot divergence near swing highs/lows.

The Stochastic Oscillator is a momentum indicator comparing closing prices to recent trading ranges, generating values between 0 and 100.

Readings above 80 signal overbought conditions; below 20 indicates oversold. Crossovers (%K over %D) work best when they happen at support/resistance.

Example: In a range, if Stochastic turns up from below 20 at a prior support level, traders often use that as a long trigger with a stop under support.

Stochastic Oscillator showing overbought and oversold swings under a price chart.

How does Williams %R spot overbought/oversold and failure swings?

Williams %R is a faster momentum oscillator that highlights exhaustion. Traders use it to time turns and to spot “failure swings” when momentum can’t reach prior extremes.

Williams %R is a momentum indicator showing overbought/oversold levels, moving between 0 and -100.

  • Overbought: above -20

  • Oversold: below -80

Failure swings matter: if %R can’t reach overbought during an uptrend push, momentum is weakening.

Williams %R indicator showing overbought and oversold zones beneath a price chart.

How does CCI identify trend continuation and early trend shifts?

CCI measures how far price is from its statistical average. Traders use it to spot momentum expansion (trend continuation) and early shifts around the zero line.

The Commodity Channel Index (CCI) is an oscillator measuring price deviation from its statistical average, identifying cyclical trends.

  • Trend continuation: breaks above +100 or below -100

  • Trend shift: zero-line crosses with follow-through

Because CCI isn’t bounded, extreme readings can signal strength, not automatic reversal.

Candlestick chart showing a bullish engulfing pattern where a large green candle fully engulfs a smaller red candle, signaling a reversal from downtrend to uptrend.

How does Parabolic SAR signal trend reversals and trailing stops?

Parabolic SAR prints dots above or below price to trail trends. Traders use it as a trailing stop and as a simple trend state tool.

Parabolic SAR is a trend-following indicator placing dots above or below price to signal potential reversals.

Dots below price = uptrend; dots above = downtrend. When dots flip sides, SAR signals a reversal and also suggests where a trailing stop would have been.

Warning: Parabolic SAR whipsaws in consolidation. Use a filter like ADX (trend strength) to avoid range conditions.

Parabolic SAR dots above price indicating downtrend and below price indicating uptrend.

How does the Ichimoku Cloud identify trend and support/resistance?

Ichimoku Cloud packages trend, momentum, and support/resistance into one view. Traders use the cloud to define bullish/bearish bias and to spot higher-quality trend setups.

The Ichimoku Cloud is an indicator showing support/resistance, momentum, and trend direction through five calculated lines forming a "cloud."

Price above the cloud = bullish; below = bearish; inside = neutral. The cloud (Kumo) projects forward, giving future support/resistance zones.

Warning: Ichimoku is unreliable in chop. It performs best when a market is clearly trending.

Ichimoku Cloud chart showing cloud zones, conversion line, base line, and trend signals.

What is a Weighted Moving Average (WMA) and when is it better?

WMA weights recent prices more than older prices (in a simple linear way). Traders use it when they want a faster line than SMA without the EMA’s aggressive weighting.

The Weighted Moving Average (WMA) is a moving average that assigns linearly decreasing weights to older price data, with the most recent prices receiving the highest weight.

WMAs split the difference between EMAs and SMAs—more responsive than simple, less jumpy than exponential.

Example: On a 1-minute chart, some scalpers use a 10/20 WMA cross with volume confirmation to time quick momentum shifts.

Price chart with WMA and SMA lines.

How does the Hull Moving Average (HMA) reduce lag?

HMA is designed to be smooth but react faster than most moving averages. Traders use it to spot trend changes earlier while avoiding some MA noise.

The Hull Moving Average (HMA) is a moving average designed to reduce lag while maintaining smooth curves, using weighted calculations and square root periods.

HMA is useful for trend exhaustion: when HMA flattens after a steep run, the trend is losing momentum.

Price chart with Hull Moving Average line.

What is SMMA and how does it smooth trend noise?

SMMA is a very smooth moving average that reduces whipsaws. Traders use it to stay aligned with longer trend direction and to avoid overreacting to short-term noise.

The Smoothed Moving Average (SMMA) is a moving average that applies equal weight to all historical data while giving slightly more emphasis to recent prices, creating ultra-smooth trend lines.

SMMA acts like a long-period EMA, giving you trend direction without the whipsaws. This creates smooth lines that can act as major support/resistance zones.

Chart showing price candles with a smooth black Smoothed Moving Average (SMMA) line tracking the trend.

How do you turn indicator signals into repeatable improvements over time?

Indicators only help if you track which signals work for you and which ones don’t. Turn indicators into a repeatable process by journaling the exact setup, then reviewing results by setup type.

  • Log the setup: indicator(s), settings, timeframe, market condition, and entry reason.

  • Review in batches: win rate, average R multiple, drawdown, and expectancy by setup.

  • Fix process errors: late entries, oversized positions vs ATR, ignoring trend filters like ADX.

Tools such as a trading journal tracker and performance analytics dashboard can help by organizing trades, tagging indicator-based setups, and surfacing statistics that guide more disciplined decision-making.

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