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Guy Gentile
Guy Gentile: The Official Record
Execution

How to Read a Stock Chart (Trader's Version)

Most chart education teaches you to name shapes. Naming shapes is not reading a chart. Reading a chart is figuring out where supply and demand actually sit, whether the last move had participation behind it, and where you would be proven wrong \u2014 which is the only part that determines your position size.

A chart is a record of transactions, nothing more. Every candle is a set of prices where somebody was willing to sell and somebody was willing to buy. When you read a chart you are trying to answer three questions: where did buyers or sellers show up in size, is the current move being paid for with real volume, and at what price does my read stop being true.

Everything else — indicator settings, pattern vocabulary, colored arrows — is decoration on those three questions. I traded through the era when retail got the same charting tools institutions had, and the tools did not make people money. Reading did.

This guide walks the four layers I look at, in the order I look at them.

Breakdown

The Four Layers of a Chart

Timeframe, price structure, volume, and the order book. Each layer either confirms the last one or kills the trade.

01

Timeframe: Context Before Entry

Start on the daily chart even if you are holding for ten minutes. The daily tells you the trend, the location of prior consolidation and gaps, the multi-month highs and lows, and whether today's range is normal or extreme for this name. Trading a five-minute chart without that context is trading blind inside somebody else's structure.

Then drop to the intraday timeframe your setup lives on — commonly 5-minute or 1-minute for momentum, 15-minute for range work. The rule is that the higher timeframe defines the bias and the lower timeframe defines the entry. When they disagree, you do not have a trade; you have a hope.

Track the opening range specifically. The first thirty minutes sets most of the day's reference levels, and a large share of intraday setups are simply a reaction to whether price accepts or rejects that range.

02

Price Structure: Levels, Not Shapes

Mark the levels that have transaction history behind them: yesterday's high and low, the premarket high and low, the opening range boundaries, the prior consolidation edges, obvious round numbers, and any gap edge. These are places where real orders sat, which is why price reacts to them.

Higher highs with higher lows is an uptrend and you are looking for pullback entries. Lower highs with lower lows is a downtrend and rallies are exits, not entries. Sideways is a range and you fade the edges toward the middle until one edge breaks with volume. Almost every profitable intraday framework is a variant of one of those three sentences.

The pattern names matter less than what a pattern implies about supply. A flag is just price holding a level while sellers finish delivering. A failed breakout matters because the traders who bought that break are now trapped and will supply into the retest. Ask what the shape means about who is stuck, not what it is called.

03

Volume: Whether Anyone Paid for the Move

Volume is confirmation, not signal. A break of a level on volume well above the session's average means real size participated and is likelier to hold. The same break on thin volume is a probe, and probes get reversed.

Two readings earn their keep. Relative volume — today's volume against the same name's normal volume at the same time of day — tells you whether this stock is actually in play or you are trading a dead tape. And volume-at-price, showing where the bulk of the session's shares changed hands, marks the levels the market itself is treating as fair value.

The classic tell: price makes a new high while volume contracts on each push. That is a move running out of buyers, and it is far more useful than any oscillator reading the same thing three bars later.

04

Level 2 and Time and Sales: The Live Layer

Level 2 shows resting bids and offers by price. Time and sales shows what actually executed and at what size. The chart is the past; these two are the present, and for a trader working a fast tape they are where the decision gets made.

What to watch: whether prints are hitting the bid or lifting the offer, whether large offers are being absorbed or are pushing price back, and whether the book thins out above a level — because thin books above mean a break can travel fast. What not to do is trust displayed size as intent. Orders are pulled, refreshed, and shown to influence you. Believe executions over displays.

Beyond that: know that your order routes somewhere, and that the venue affects your fill. That mechanic — market makers, internalizers, payment for order flow — is worth understanding on its own, because it explains fills that otherwise look unfair.

05

The Mistakes That Cost the Most

Stacking indicators that all measure momentum and calling three versions of the same input confirmation. Marking a level after entering to justify the trade. Zooming the chart until the move looks bigger than it is. Trading a name with no relative volume because a setup appeared on it.

The expensive one, though, is not defining invalidation before entry. If you cannot point to the price where your read is wrong, you cannot size the position, which means the market is choosing your risk for you. Every other chart-reading error is survivable. That one compounds.

FAQ

Chart Reading FAQ

Not advice

This guide is general information from two decades of operating and trading experience. It is not tax, legal, or investment advice, and it is not a recommendation to trade any security. Rules change and your situation is specific \u2014 confirm anything that affects your money with a qualified professional.

I'm not a lawyer.