OPEN-SOURCE SCRIPT
Stock Position Sizer with Daily ATR
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.
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.
Skrip sumber terbuka
Dalam semangat TradingView sebenar, pencipta skrip ini telah menjadikannya sumber terbuka, jadi pedagang boleh menilai dan mengesahkan kefungsiannya. Terima kasih kepada penulis! Walaupuan anda boleh menggunakan secara percuma, ingat bahawa penerbitan semula kod ini tertakluk kepada Peraturan Dalaman.
Penafian
Maklumat dan penerbitan adalah tidak bertujuan, dan tidak membentuk, nasihat atau cadangan kewangan, pelaburan, dagangan atau jenis lain yang diberikan atau disahkan oleh TradingView. Baca lebih dalam Terma Penggunaan.
Skrip sumber terbuka
Dalam semangat TradingView sebenar, pencipta skrip ini telah menjadikannya sumber terbuka, jadi pedagang boleh menilai dan mengesahkan kefungsiannya. Terima kasih kepada penulis! Walaupuan anda boleh menggunakan secara percuma, ingat bahawa penerbitan semula kod ini tertakluk kepada Peraturan Dalaman.
Penafian
Maklumat dan penerbitan adalah tidak bertujuan, dan tidak membentuk, nasihat atau cadangan kewangan, pelaburan, dagangan atau jenis lain yang diberikan atau disahkan oleh TradingView. Baca lebih dalam Terma Penggunaan.