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ATR calculator

The average true range of any market from its bars, and the stop distances it suggests.

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The bars

Oldest first. Three numbers per bar, bars split by semicolons: 2358 2328.8 2333.5; 2334.5 2285.6 2301.4
14 is the usual setting.

The ATR

The 14-bar ATR is about 24.95, 1.08% of the last close of 2,308.10.

What it means
A usual bar covers about 24.95 from low to high, gaps included. A stop closer than that is inside ordinary noise.
Last bar
True range 10.20: narrower than average.

Stop distances in ATR from the last close: below it for a buy, above it for a sell.

DistanceIn priceBuy stopSell stop
1 ATR24.952,283.152,333.05
1.5 ATR37.432,270.672,345.53
2 ATR49.902,258.202,358.00
3 ATR74.852,233.252,382.95

Check a stop against this ATR

Education only, not investment advice. The answer comes from the numbers you typed in, not from your account or the market. Simulated results are hypothetical and have limits: real trading has slippage, gaps, changing results and emotions. Trading leveraged products can lose money quickly, including all of it. Risk warning

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Educational only, not financial advice; trading involves risk.

The size of a usual bar

The average true range measures how far a market travels in one bar, counting overnight gaps: each bar's range is stretched to the previous close when the price jumped. J. Welles Wilder's version averages the first 14 bars and then smooths each new one in, so it follows the market without jumping about.

Traders use it to set stops a fixed number of ATRs away, so a stop is wide in a wild market and tight in a calm one, and to size positions so each trade risks the same money. Test a stop with the stop noise check, and size the trade with the position size calculator.

Not advice. Arithmetic on the bars you type; tomorrow's range can be far larger than the average.

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