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Position Size Calculator in Excel
To manage the risk of ruin in trading position sizing should be managed to never lose more than 1% to 2% of total trading capital on any one trade. If a stock trader has a $100,000 account, they should position size and set stop losses to limit losses to no more than $1,000 in a trade. A stop loss level has to start at the price level that what signal a trade is wrong, and work back to position sizing. If the key price support level on your stock is $100 and you buy a stock at $105 you set your stop loss at $100, then you can trade 200 shares with a stop at the $100 price level. 200 X $105 = $21,000 position size for ... (full story)
