
Obrigado Nuno!
Fórum dedicado à discussão sobre os Mercados Financeiros - Bolsas de Valores
http://teste.caldeiraodebolsa.jornaldenegocios.pt/
http://teste.caldeiraodebolsa.jornaldenegocios.pt/viewtopic.php?f=3&t=64990
Jesse James Escreveu:Obrigado aos dois.
Os negocios a decorrer devem ser ser quantificados ao preço em que entrámos ou à cotação actual?
Alguem aqui no forum, utiliza sistemas distintos, nomeadamente aqueles que levam em conta a probabilidade, baseada nos trades passados?
1. Calculate 2 percent (...;0,5%;1%;1,5%;...) of your trading capital: your Capital at Risk
2. Deduct brokerage on the buy and sell to arrive at your Maximum Permissible Risk
3. Calculate your Risk per Share:
Deduct your stop-loss from the buy price and add a provision for slippage (not all stops are executed at the actual limit). For a short trade, the procedure is reversed: deduct the buy price from the stop-loss before adding slippage.
4. The Maximum Number of Shares is then calculated by dividing your Maximum Permissible Risk by the Risk per Share.
Imagine that your total share trading capital is $20,000 and your brokerage costs are fixed at $50 per trade.
1. Your Capital at Risk is: $20,000 * 2 percent = $400 per trade.
2. Deduct brokerage, on the buy and sell, and your Maximum Permissible Risk is: $400 - (2 * $50) = $300.
3. Calculate your Risk per Share:
If a stock is priced at $10.00 and you want to place a stop-loss at $9.50, then your risk is 50 cents per share.
Add slippage of say 25 cents and your Risk per Share increases to 75 cents per share.
4. The Maximum Number of Shares that you can buy is therefore:
$300 / $0.75 = 400 shares (at a cost of $4000)