OPEN-SOURCE SCRIPT

Stock Position Sizer with Daily ATR

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The script is a stock position-sizing indicator based on ATR multiples. It calculates how many whole shares you can trade while risking a chosen percentage of your nominal equity.

With the defaults:

- Nominal equity: 90,000
- Risk: 0.5%
- Risk budget: 450
- ATR length: 20 days
- Stop distance: 2 × ATR

### Calculation

It retrieves the close and ATR from the last completed daily bar, regardless of the chart timeframe.

Risk budget = Nominal equity × Risk percentage
Stop distance = Daily ATR × ATR multiple
Shares = floor(Risk budget ÷ Stop distance)

For example, if ATR is 8.86:


Risk budget = 90,000 × 0.5% = 450
Stop distance = 8.86 × 2 = 17.72
Position size = floor(450 ÷ 17.72) = 25 shares

Long and short levels

Both directions use the same share quantity because their stop distances are symmetrical:

Long entry = Previous daily close
Long stop = Previous daily close − 2 ATR

Short entry = Previous daily close
Short stop = Previous daily close + 2 ATR

What it displays

The chart shows three horizontal levels:

- Blue: previous daily close and assumed entry
- Red: long stop
- Orange: short stop

The table shows:

- Stock currency
- Previous daily close
- Daily ATR
- Stop distance
- Risk budget
- Number of whole shares
- Long entry and stop
- Short entry and stop
- Position notional and actual risk after rounding

There is no currency conversion. A value of `90,000` means $90,000 on a USD stock, €90,000 on a EUR stock, and so forth.

Feragatname

Bilgiler ve yayınlar, TradingView tarafından sağlanan veya onaylanan finansal, yatırım, alım satım veya diğer türden tavsiye veya öneriler anlamına gelmez ve teşkil etmez. Kullanım Koşulları bölümünde daha fazlasını okuyun.