How to Calculate Profit and Loss for trading position?
"Month to date For the month to date (MTD), the price on Feb 28th is $4.58 and the price on March 16th is $4.61 so the return is which can be written more simply as The position is 1000 shares valued at $4580 on Feb 28th, so the profit on the month to date is Calendar year to date For the calendar year to date (YTD), the price on Dec 31st is $4.60 and the price on Feb 28th is $4.58 so the return to Feb 28th is The return from Feb 28th to March 16th is 0.655022 % so the year to date return is or more directly So the 2011 YTD profit on 1000 shares valued at $4600 on Dec 31st is Year to date starting Dec 10th For the year to date starting Dec 10th, the starting value is and the value on Dec 31st is 1000 * $4.60 = $4600 so the return is $4600 / $4510 - 1 = 0.0199557 = 1.99557 % The year to date profit is therefore Note - YTD is often understood to mean calendar year to date.  To cover all the bases state both, ie ""calendar YTD (2011)"" and ""YTD starting Dec 10th 2010"". Edit further to comment For the calendar year to date, with 200 shares sold on Jan 10th with the share price at $4.58, the return from Dec 31st to Jan 10th is The return from Jan 10th to Feb 28th is The return from Feb 28th to March 16th is The profit on 1000 shares from Dec 31st to Jan 10th is $4600 * -0.00434783 = -$20 The profit on 800 shares from Jan 10th to Feb 28th is zero. The profit on 800 shares from Feb 28th to March 16th is So the year to date profit is $4."
Don't know the name but it means you're long with conviction :P  Unlimited gains, maximum loss of 95$  + (8-6) = 97$.  Basically You are long @ 107  - -2 from 105 to 95.  You would have to be ULTRA bullish to initiate this strategy. "The margin money you put up to fund a short position ($6000 in the example given) is simply a ""good faith"" deposit that is required by the broker in order to show that you are acting in good faith and fully intend to meet any potential losses that may occur.  This margin is normally called initial margin.  It is not an accounting item, meaning it is not debited from you cash account.  Rather, the broker simply segregates these funds so that you may not use them to fund other trading.  When you settle your position these funds are released from segregation.   In addition, there is a second type of margin, called variation margin, which must be maintained while holding a short position.  The variation margin is simply the running profit or loss being incurred on the short position.  In you example, if you sold 200 shares at $20 and the price went to $21, then your variation margin would be a debit of $200, while if the price went to $19, the variation margin would be a credit of $200.   The variation margin will be netted with the initial margin to give the total margin requirement ($6000 in this example).  Margin requirements are computed at the close of business on each trading day.  If you are showing a loss of $200 on the variation margin, then you will be required to put up an additional $200 of margin money in order to maintain the $6000 margin requirement - ($6000 - $200 = $5800, so you must add $200 to maintain $6000).  If you are showing a profit of $200, then $200 will be released from segregation - ($6000 + $200 = $6200, so $200 will be release from segregation leaving $6000 as required). When you settle your short position by buying back the shares, the margin monies will be release from segregation and the ledger postings to you cash account will be made according to whether you have made a profit or a loss.  So if you made a loss of $200 on the trade, then your account will be debited for $200 plus any applicable commissions.  If you made a profit of $200 on the trade then your account will be credited with $200 and debited with any applicable commissions." You need to use one of each, so a single order wouldn't cover this:  The stop-loss order could be placed to handle triggering a sell market order if the stock trades at $95 or lower.  If you want, you could use a stop-limit order if you have an exit price in mind should the stock price drop to $95 though that requires setting a price for the stop to execute and then another price for the sell order to execute. The limit sell order could be placed to handle triggering a sell if the stock rises above $105. On the bright side, once either is done the other could be canceled as it isn't applicable anymore. Not directly an answer to your question, but somewhat related: There are derivatives (whose English name I sadly don't know) that allow to profit from breaking through an upper or alternatively a lower barrier. If the trade range does not hit either barrier you lose. This kind of derivative is useful if you expect a strong movement in either direction, which typically occurs at high volume. "Treat each position or partial position as a separate LOT. Each time you open a position, a new lot of shares is created. If you sell the whole position, then the lot is closed. Done. But if you sell a partial quantity, you need to create a new lot. Split the original lot into two. The quantities in each are the amount sold, and the amount remaining. If you were to then buy a few more shares, create a third lot. If you then sell the entire position, you'll be closing out all the remaining lots. This allows you to track each buy/sell pairing. For each lot, simply calculate return based on cost and proceeds. You can't derive an annualized number for ALL the lots as a group, because there's no common timeframe that they share. If you wish to calculate your return over time on the whole series of trades, consider using TWIRR. It treats these positions, plus the cash they represent, as a whole portfolio. See my post in this thread: How can I calculate a ""running"" return using XIRR in a spreadsheet?" You would appear to be a swing trader, like myself. I have been trading futures and futures options for 29 years, and have both made and lost a lot of money in that time. My trades last hours, to days, to at most a few weeks. From my experience, the most important skills are: 1) Money management - keeping trade size small in relation to total capital. I typically risk 2-3% of my capital on a trade, so a loss is fairly immaterial. 2) Risk management - limit your loss on every trade, either by using stop orders, options, or a combination of these 2. 3) Emotional discipline - be prepared to exit a position, or reverse from long to short, or short to long,  on a moment's notice. The market doesn't care where you entered, or whether you make or lose money. Don't let your hunches or the news influence your decisions, but follow the market. 4) Methodology discipline - test your analysis / trade entry method to ensure that it is objective, and has a reasonably good probability of success, then stick with it. Variation will inevitably lead to indecision or emotional reactions. 5) Flexibility - consider trading anything which can make you a profit, but ensure that there is a lot of liquidity. I trade 30 different futures markets, as well as various option writing strategies in these markets.  Feel free to reach out if you want to discuss further. I have about 500 (yes, 500) trading e-books as well, on every trading subject you can think of. "The blue line is illustrating the net profit or loss the investor will realise according to how the price of the underlying asset settles at expiry. The x-axis represents the underlying asset price.  The y-axis represents the profit or loss. In the first case, the investor has a ""naked put write"" position, having sold a put option.  The strike price of the put is marked as ""A"" on the x-axis.  The maximum profit possible is equal to the total premium received when the option contract was sold.  This is represented by that portion of the blue line that is horizontal and extending from the point above that point marked ""A"" on the x-axis.  This corresponds to the case that the price of the underlying asset settles at or above the strike price on the day of expiry.  If the underlying asset settles at a price less than the strike price on the day of expiry, then the option with be ""in the money"".  Therefore the net settlement value will move from a profit to a loss, depending on how far in the money the option is upon expiry.  This is represented by the diagonal line moving from above the ""A"" point on the x-axis and moving from a profit to a loss on the y-axis.  The diagonal line crosses the x-axis at the point where the underlying asset price is equal to ""A"" minus the original premium rate at which the option was written - i.e., net profit = zero.  In the second case, the investor has sold a put option with a strike price of ""B"" and purchase a put option with a strike price ""A"", where A is less than B.  Here, the reasoning is similar to the first example, however since a put option has been purchase this will limit the potential losses should the underlying asset move down strongly in value. The horizontal line above the x-axis marks the maximum profit while the horizontal line below the x-axis marks the maximum loss. Note that the horizontal line above the x-axis is closer to the x-axis that is the horizontal line below the x-axis.  This is because the maximum profit is equal to the premium received for selling the put option minus the premium payed for buying the put option at a lower strike price.  Losses are limited since any loss in excess of the strike price ""A"" plus the premium payed for the put purchased at a strike price of ""A"" is covered by the profit made on the purchased put option at a strike price of ""A""." "The two dimensions are to open the trade (creating a position) and to buy or sell (becoming long or short the option). If you already own an option, you bought it to open and then you would sell it to close. If you don't own an option, you can either buy it to open, or sell it (short it) to open. If you are already short an option, you can buy it back to close. If you sell to open covered, the point is you're creating a ""covered call"" which means you own the stock, and then sell a call. Since you own the stock, the covered call has a lot of the risk of loss removed, though it also subtracts much of the reward possible from your stock." If you had a trading system, and by trading system I mean the criteria setup that you will take a trade on, then once a setup comes up at what price will you open the trade and at what price you will close the trade. As an example, if you want to buy once price breaks through resistance at $10.00 you might place your buy order at $10.05. So once you have a written trading system you could do backtesting on this system to get a percentage of win trades to loosing trades, your average win size to average lose size, then from this you could work out your expectancy for each trade that you follow your trading system on. yes, you are double counting. Your profit is between ($7.25 and $8) OR ($7.75 and $8.50). in other words, you bought the stock at $7.75 and sold at $8.00 and made $0.50 on top. Profit =  $8.00-$7.75+$0.50 (of course all this assumes that the stock is at or above $8.00 when the option expires. If it's below, then your profit = market price - $7.75 + $0.50 by the way the statement  won't call me away until the stock reaches $8.50 is wrong. They already paid $0.50 for the right to buy the stock at $8.00. If the stock is $8.01 on the day of expiration your options will be executed(automatically i believe). Your three options are: Options 2 and 3 are obviously identical (other than transaction costs), so if you want to keep the stock, go for option 1, otherwise, go for option 3 since you have the same effect as option 2 with no transaction costs.  The loss will likely also offset some of the other short term gains you mentioned. "I would suggest you forget everything you learned in economics. The only applicable knowledge is Accounting 101.  Step 1: An accrual basis financial statement. There is no step 2 if you don't do this. Most small business do everything cash basis. Simpler, cheaper but useless for analysis. You would get better answers from the local fortune teller than a cash basis statement.   Make one change from the general rules. If you have debt or are paying interest for inventory include that in your cost of sales. This is actually proper but the rule is little known and often ignored. Interest on debt up to the amount of inventory is a cost of inventory.  Step 2: Gross profit. If you seem to be working hard and still losing money it may be because you are selling products for less than they cost you. In this case the more you sell the more you lose. So suggestions like advertising or doing anything to increase sales are actually destructive.  Step 3 Price products at the level necessary to turn a profit at current sales and overhead. 'When we have enough sales we will make a profit"" is the philosophy of a start up business. It is toxic for a going concern.  Step 4 If sales are unsustainable at the price that produces a profit have the courage to sell or close the business. I have seen people waste their lives on futile endeavors just because they can't make that tough decision.  Finally Step 0: Ignore all other suggestions but this. They are well meaning but ill informed. To reiterate, growing sales while losing money on every transaction is a huge mistake. Trends, books, charts and graphs, analytics and market research are the tools of con-men and fortune tellers. Business is arithmetic and nothing more or less.  FYI if I don't get at least one upvote, this is the last time I am giving my valuable professional advice away for free on reddit. Folks will have to rely on the suggestions of their fellow college kids." Here is the technical guidance from the accounting standard FRS 23 (IAS 21) 'The Effects of Changes in Foreign Exchange Rates' which states: Exchange differences arising on the settlement of monetary items or on translating monetary items at rates   different from those at which they were translated on initial recognition during the period or in previous   financial statements shall be recognised in profit or loss in the period in which they arise. An example:  You agree to sell a product for $100 to a customer at a certain date. You would record the sale of this product on that date at $100, converted at the current FX rate (lets say £1:$1 for ease) in your profit loss account as £100. The customer then pays you several $100 days later, at which point the FX rate has fallen to £0.5:$1 and you only receive £50. You would then have a realised loss of £50 due to exchange differences, and this is charged to your profit and loss account as a cost. Due to double entry bookkeeping the profit/loss on the FX difference is needed to balance the journals of the transaction. I think there is a little confusion as to what constitutes a (realised) profit/loss on exchange difference. In the example in your question, you are not making any loss when you convert the bitcoins to dollars, as there is no difference in the exchange rate between the point you convert them. Therefore you have not made either a profit or a loss.  In terms of how this effects your tax position; you only pay tax on your profit and loss account. The example I give above is an instance where an exchange difference is recorded to the P&L. In your example, the value of your cash held is reflected in your balance sheet, as an asset, whatever its value is at the balance sheet date. Unfortunately, the value of the asset can rise/fall, but the only time where you will record a profit/loss on this (and therefore have an impact on tax) is if you sell the asset. If you take the profit or loss next year, it counts on next year's taxes.  There's no profit or loss until that happens. So far the answer is: observe the general direction of the market, using special tools if needed or you have them available (.e.g. Bollinger bands to help you understand the current trend) at the right time per above, do the roll with stop loss in place (meaning roll at a pre-determined max loss), and also a trailing stop loss if the roll works in your favor, to capture the profits on the roll. This trade was a learning experience.  I sold the option at $20 thinking I'd get back in later in the day with the further out option at a good price, as the market goes back and forth.  The underlying went up and never came back.  I finally gritted my teeth and bought the new option at 23.10 (when it would have cost me about 20.20 before), i.e. a miss/loss of $3 on $20. The underlying continued to rise, from that point (hasn't been back), and now the option price is $29. Of course one needs to make sure the Implied Volatility of the option being left and the option going to is good/fair, and if not, either roll further out in time, nearer in time, our up / down the strike prices, to find the right target option.  After doing that, one might do the strategy above, i.e. any good trade mgmt type strategy:  seek to make a good decision, acknowledge when you were wrong (with stop loss), and act. Or, if you're right, cash in smartly (i.e. trailing stops).