How to read a candle, and why only closed ones count

Caliente Signals · Updated

A candle packs a stretch of time into four prices: where it opened, the highest and lowest it traded, and where it closed.

An up candle and a down candle, with open, high, low and close labelledHighCloseOpenLowclose above openOpenCloseclose below open
The body runs between the open and the close. The wicks reach out to the highest and lowest prices traded. Which end of the body is the open flips with the direction.

Everything Caliente computes comes from the close. When a condition says price, it means the closing price of that candle.

Rules are checked on finished candles

A candle that is still forming has no close yet, so any indicator built on it is still moving. Once the candle closes, those numbers are fixed and they stay fixed.

That is what the engine waits for. Backtests and live alerts both read only finished candles, which is what no-repaint means in practice: a signal that fired is a permanent fact about that candle, and nothing later can move it.

What four prices can and cannot tell you

A candle is a summary, and every summary trades detail for readability. The four prices give you the range but not the sequence inside it. A one-hour candle that traded 2% below your entry and 4% above it does not record which of those happened first.

That is a normal property of the format rather than a flaw, and it has a visible consequence in the app: it is why a stop takes priority over a take-profit when a single candle reaches both levels. If you want finer resolution, a shorter timeframe gives you more candles and a narrower range inside each.

Read next

Write the rule. We'll watch for it.

Unlimited backtests on the free plan, and no card to start.

Caliente Signals is an alert tool, not an investment advisor. Nothing on this page is financial advice, and past performance is not indicative of future results.