What Trading Volume Really Tells You (Most Traders Miss This)

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Volume is the most misunderstood indicator in technical analysis. Most traders look at it as an afterthought — a bar chart at the bottom of the screen that confirms what price already showed. But volume is actually price's leading indicator. It tells you the conviction behind a move before price confirms it.

Volume Is Votes, Price Is the Result

Think of every day's trading as an election. Every share that changes hands is a vote — someone believed it was worth buying at that price, and someone believed it was worth selling. The volume tells you how many votes were cast.

A price move on high volume = many participants agree on the new price level. High conviction. Likely to continue or hold.

A price move on low volume = few participants behind the move. Low conviction. Likely to reverse or fade.

This single principle explains most of what you need to know about volume analysis.

The Four Volume Patterns That Matter

1. High Volume Breakout

Price breaks above a resistance zone on volume significantly above the 30-day average (we look for 120%+ of average). This is institutional money moving in — the breakout has conviction and is likely to follow through.

On the APH chart, the breakout from the $64–$67 consolidation zone in mid-2024 occurred on above-average volume. That high-volume breakout was the signal that the move was real — not a false breakout that would immediately reverse.

2. Low Volume Pullback

After a strong breakout or in an established uptrend, the stock pulls back on declining volume. This is healthy — sellers don't have conviction. The buyers are simply stepping aside temporarily. This is often the best entry point in a trending trade.

What you're seeing: the weak hands are shaking out, but the institutional buyers who drove the original move haven't sold. Low volume on the pullback means supply is limited.

3. High Volume Reversal Candle

A large red candle on the highest volume in weeks, after an extended uptrend. Institutional distribution — large holders selling into the strength. This is often the top of a move, or a major warning before the top.

4. Climactic Volume at Lows (Selling Climax)

After an extended downtrend, a massive volume spike with a large red candle, followed by an immediate recovery. This is the "blow-off bottom" — panic sellers capitulating all at once. When you see this pattern followed by a recovery candle on the next day, it often marks the final low.

This is one of TarsierAlpha's most important Oversold Bounce signals. When a quality large-cap stock shows a climactic volume spike at a support zone, that's the setup.

Volume and Options: What to Look For in the Chain

Beyond price chart volume, options traders should check options volume daily:

• Unusually high call volume on a specific strike: Someone is buying a lot of calls at an unusual strike. Could be speculative, could be informed. Worth noting.
• High put/call volume ratio: More puts being bought than calls suggests hedging or bearish positioning. A very high ratio can be a contrarian bullish signal (everyone is already hedged/bearish — who's left to sell?).
• Options volume exceeding open interest: When daily volume in an options contract exceeds the existing open interest, new positions are being opened aggressively. This often precedes significant moves.

Relative Volume: The Only Volume Metric That Matters

Raw volume numbers mean nothing without context. 5 million shares traded in PYPL means something different from 5 million shares in a small-cap.

Relative volume = today's volume compared to the average volume for that time of day.

A stock trading at 2.5x relative volume by noon means it has already traded 2.5 times its normal daily volume in half the time. Something is happening — find out what.

TarsierAlpha's scanner uses relative volume (requiring 120%+ of 30-day average) as a confirming signal in both Gap Fill and Oversold Bounce setups.