How is money actually made from the buying or selling of options?
"Not all call options that have value at expiration, exercise by purchasing the security (or attempting to, with funds in your account).   On ETNs, they often (always?) settle in cash.  As an example of an option I'm currently looking at, AVSPY, it settles in cash (please confirm by reading the documentation on this set of options at http://www.nasdaqomxtrader.com/Micro.aspx?id=Alpha, but it is an example of this).  There's nothing it can settle into (as you can't purchase the AVSPY index, only options on it).  You may quickly look (wikipedia) at the difference between ""American Style"" options and ""European Style"" options, for more understanding here. Interestingly I just spoke to my broker about this subject for a trade execution.  Before I go into that, let me also quickly refer to Joe's answer:  what you buy, you can sell.  That's one of the jobs of a market maker, to provide liquidity in a market.  So, when you buy a stock, you can sell it.  When you buy an option, you can sell it.  That's at any time before expiration (although how close you do it before the closing bell on expiration Friday/Saturday is your discretion).  When a market maker lists an option price, they list a bid and an ask.  If you are willing to sell at the bid price, they need to purchase it (generally speaking).  That's why they put a spread between the bid and ask price, but that's another topic not related to your question -- just note the point of them buying at the bid price, and selling at the ask price -- that's what they're saying they'll do. Now, one major difference with options vs. stocks is that options are contracts. So, therefore, we can note just as easily that YOU can sell the option on something (particularly if you own either the underlying, or an option deeper in the money).  If you own the underlying instrument/stock, and you sell a CALL option on it, this is a strategy typically referred to as a covered call, considered a ""risk reduction"" strategy.  You forfeit (potential) gains on the upside, for money you receive in selling the option. The point of this discussion is, is simply: what one buys one can sell;  what one sells one can buy -- that's how a ""market"" is supposed to work.  And also, not to think that making money in options is buying first, then selling.  It may be selling, and either buying back or ideally that option expiring worthless. -- Now, a final example.  Let's say you buy a deep in the money call on a stock trading at $150, and you own the $100 calls.  At expiration, these have a value of $50.  But let's say, you don't have any money in your account, to take ownership of the underlying security (you have to come up with the additional $100 per share you are missing).  In that case, need to call  your broker and see how they handle it, and it will depend on the type of account you have (e.g. margin or not, IRA, etc).  Generally speaking though, the ""margin department"" makes these decisions, and they look through folks that have options on things that have value, and are expiring, and whether they have the funds in their account to absorb the security they are going to need to own.  Exchange-wise, options that have value at expiration, are exercised.  But what if the person who has the option, doesn't have the funds to own the whole stock? Well, ideally on Monday they'll buy all the shares with the options you have at the current price, and immediately liquidate the amount you can't afford to own, but they don't have to.  I'm mentioning this detail so that it helps you see what's going or needs to go on with exchanges and brokerages and individuals, so you have a broader picture." Today SPY (The S&P ETF) trades at $128. The option to buy at $140 (this is a Jan '13 call) trades for $5.  I buy the call, for $500 as they trade in 100 lots.  The S&P skyrockets to 1500 and SPY to $150. The call trades for $11, as it still has a month or two before expiring, so I sell it, and get $1100. The S&P rose 17%, but I doubled my money. If it 'only' rose 9%, to less than $140, I'd lose my investment. No, I don't need to buy the SPY I can sell the call any time before expiration. In fact, most options are not exercised, they are sold between purchase and expiration date.
"Seems like you are concerned with something called assignment risk. It's an inherent risk of selling options: you are giving somebody the right, but not the obligation, to sell to you 100 shares of GOOGL. Option buyers pay a premium to have that right - the extrinsic value. When they exercise the option, the option immediately disappears. Together with it, all the extrinsic value disappears. So, the lower the extrinsic value, the higher the assignment risk. Usually, option contracts that are very close to expiration (let's say, around 2 to 3 weeks to expiration or less) have significantly lower extrinsic value than longer option contracts. Also, generally speaking, the deeper ITM an option contract is, the lower extrinsic value it will have. So, to reduce assignment risk, I usually close out my option positions 1-2 weeks before expiration, especially the contracts that are deep in the money. edit: to make sure this is clear, based on a comment I've just seen on your question. To ""close out an options position"", you just have to create the ""opposite"" trade. So, if you sell a Put, you close that by buying back that exact same put. Just like stock: if you buy stock, you have a position; you close that position by selling the exact same stock, in the exact same amount. That's a very common thing to do with options. A post in Tradeking's forums, very old post, but with an interesting piece of data from the OCC, states that 35% of the options expire worthless, and 48% are bought or sold before expiration to close the position - only 17% of the contracts are actually exercised! (http://community.tradeking.com/members/optionsguy/blogs/11260-what-percentage-of-options-get-exercised) A few other things to keep in mind: certain stocks have ""mini options contracts"", that would correspond to a lot of 10 shares of stock. These contracts are usually not very liquid, though, so you might not get great prices when opening/closing positions you said in a comment, ""I cannot use this strategy to buy stocks like GOOGL""; if the reason is because 100*GOOGL is too much to fit in your buying power, that's a pretty big risk - the assignment could result in a margin call! if margin call is not really your concern, but your concern is more like the risk of holding 100 shares of GOOGL, you can help manage that by buying some lower strike Puts (that have smaller absolute delta than your Put), or selling some calls against your short put. Both strategies, while very different, will effectively reduce your delta exposure. You'd get 100 deltas from the 100 shares of GOOGL, but you'd get some negative deltas by holding the lower strike Put, or by writing the higher strike Call. So as the stock moves around, your account value would move less than the exposure equivalent to 100 shares of stock." "This is the sad state of US stock markets and Regulation T. Yes, while options have cleared & settled for t+1 (trade +1 day) for years and now actually clear ""instantly"" on some exchanges, stocks still clear & settle in t+3.  There really is no excuse for it. If you are in a margin account, regulations permit the trading of unsettled funds without affecting margin requirements, so your funds in effect are available immediately after trading but aren't considered margin loans.  Some strict brokers will even restrict the amount of uncleared margin funds you can trade with (Scottrade used to be hyper safe and was the only online discount broker that did this years ago); others will allow you to withdraw a large percentage of your funds immediately (I think E*Trade lets you withdraw up to 90% of unsettled funds immediately). If you are in a cash account, you are authorized to buy with unsettled funds, but you can't sell purchases made on unsettled funds until such funds clear, or you'll be barred for 90 days from trading as your letter threatened; besides, most brokers don't allow this.  You certainly aren't allowed to withdraw unsettled funds (by your broker) in such an account as it would technically constitute a loan for which you aren't even liable since you've agreed to no loan contract, a margin agreement.  I can't be sure if that actually violates Reg T, but when I am, I'll edit. While it is true that all marketable options are cleared through one central entity, the Options Clearing Corporation, with stocks, clearing & settling still occurs between brokers, netting their transactions between each other electronically. All financial products could clear & settle immediately imo, and I'd rather not start a firestorm by giving my opinion why not. Don't even get me started on the bond market... As to the actual process, it's called ""clearing & settling"". The general process (which can generally be applied to all financial instruments from cash deposits to derivatives trading) is: The reason why all of the old financial companies were grouped on Wall St. is because they'd have runners physically carting all of the certificates from building to building.  Then, they discovered netting so slowed down the process to balance the accounts and only cart the net amounts of certificates they owed each other.  This is how we get the term ""bankers hours"" where financial firms would close to the public early to account for the days trading.  While this is all really done instantly behind your back at your broker, they've conveniently kept the short hours." "The answer to the question, can I exercise the option right away? depends on the exercise style of the particular option contract you are talking about. If it's an American-style exercise, you can exercise at any moment until the expiration date. If it's an European-style exercise, you can only exercise at the expiration date. According to the CME Group website on the FOPs on Gold futures, it's an American-style exercise (always make sure to double check this - especially in the Options on Futures world, there are quite a few that are European style): http://www.cmegroup.com/trading/metals/precious/gold_contractSpecs_options.html?optionProductId=192#optionProductId=192 So, if you wanted to, the answer is: yes, you can exercise those contracts before expiration. But a very important question you should ask is: should you? Option prices are composed of 2 parts: intrinsic value, and extrinsic value. Intrinsic value is defined as by how much the option is in the money. That is, for Calls, it's how much the strike is below the current underlying price; and for Puts, it's how much the strike is above the current underlying price. Extrinsic value is whatever amount you have to add to the intrinsic value, to get the actual price the option is trading at the market. Note that there's no negative intrinsic value. It's either a positive number, or 0. When the intrinsic value is 0, all the value of the option is extrinsic value. The reason why options have extrinsic value is because they give the buyer a right, and the seller, an obligation. Ie, the seller is assuming risk. Traders are only willing to assume obligations/risks, and give others a right, if they get paid for that. The amount they get paid for that is the extrinsic value. In the scenario you described, underlying price is 1347, call strike is 1350. Whatever amount you have paid for that option is extrinsic value (because the strike of the call is above the underlying price, so intrinsic = 0, intrinsic + extrinsic = value of the option, by definition). Now, in your scenario, gold prices went up to 1355. Now your call option is ""in the money"", that is, the strike of your call option is below the gold price. That necessarily means that your call option has intrinsic value. You can easily calculate how much: it has exactly $5 intrinsic value (1355 - 1350, undelrying price - strike). But that contract still has some ""risk"" associated to it for the seller: so it necessarily still have some extrinsic value as well. So, the option that you bought for, let's say, $2.30, could now be worth something like $6.90 ($5 + a hypothetical $1.90 in extrinsic value). In your question, you mentioned exercising the option and then making a profit there. Well, if you do that, you exercise your options, get some gold futures immediately paying $1350 for them (your strike), and then you can sell them in the market for $1355. So, you make $5 there (multiplied by the contract multiplier). BUT your profit is not $5. Here's why: remember that you had to buy that option? You paid some money for that. In this hypothetical example, you payed $2.30 to buy the option. So you actually made only $5 - $2.30 = $2.70 profit! On the other hand, you could just have sold the option: you'd then make money by selling something that you bought for $2.30 that's now worth $6.90. This will give you a higher profit! In this case, if those numbers were real, you'd make $6.90 - $2.30 = $4.60 profit, waaaay more than $2.70 profit! Here's the interesting part: did you notice exactly how much more profit you'd have by selling the option back to the market, instead of exercising it and selling the gold contracts? Exactly $1.90. Do you remember this number? That's the extrinsic value, and it's not a coincidence. By exercising an option, you immediately give up all the extrinsic value it has. You are going to convert all the extrinsic value into $0. So that's why it's not optimal to exercise the contract. Also, many brokers usually charge you much more commissions and fees to exercise an option than to buy/sell options, so there's that as well! Always remember: when you exercise an option contract, you immediately give up all the extrinsic value it has. So it's never optimal to do an early exercise of option contracts and individual, retail investors. (institutional investors doing HFT might be able to spot price discrepancies and make money doing arbitrage; but retail investors don't have the low commissions and the technology required to make money out of that!) Might also be interesting to think about the other side of this: have you noticed how, in the example above, the option started with $2.30 of extrinsic value, and then it had less, $1.90 only? That's really how options work: as the market changes, extrinsic value changes, and as time goes by, extrinsic value usually decreases. Other factors might increase it (like, more fear in the market usually bring the option prices up), but the passage of time alone will decrease it. So options that you buy will naturally decrease some value over time. The closer you are to expiration, the faster it's going to lose value, which kind of makes intuitive sense. For instance, compare an option with 90 days to expiration (DTE) to another with 10 DTE. One day later, the first option still has 89 DTE (almost the same as 90 DTE), but the other has 9 DTE - it relatively much closer to the expiration than the day before. So it will decay faster. Option buyers can protect their investment from time decay by buying longer dated options, which decay slower! edit: just thought about adding one final thought here. Probabilities. The strategy that you describe in your question is basically going long an OTM call. This is an extremely bullish position, with low probability of making money. Basically, for you to make money, you need two things: you need to be right on direction, and you need to be right on time. In this example, you need the underlying to go up - by a considerable amount! And you need this to happen quickly, before the passage of time will remove too much of the extrinsic value of your call (and, obviously, before the call expires). Benefit of the strategy is, in the highly unlikely event of an extreme, unanticipated move of the underlying to the upside, you can make a lot of money. So, it's a low probability, limited risk, unlimited profit, extremely bullish strategy." "Your question indicates that you might have a little confusion about put options and/or leveraging.  There's no sense I'm aware of in which purchasing a put levers a position.  Purchasing a put will cost you money up front.  Leveraging typically means entering a transaction that gives you extra money now that you can use to buy other things.  If you meant to sell a put, that will make money up front but there is no possibility of making money later.  Best case scenario the put is not exercised.  The other use of the term ""leverage"" refers to purchasing an asset that, proportionally, goes up faster than the value of the underlying.  For example, a call option. If you purchase a put, you are buying downside protection, which is kind of the opposite of leverage.  Notice that for an American put you will most likely be better off selling the put when the price of the underlying falls than exercising it.  That way you make the money you would have made by exercising plus whatever optional value the put still contains.  That is true unless the time value of money is greater than the optional (insurance) value.  Since the time value of money is currently exceptionally low, this is unlikely.  Anyway, if you sell the option instead of exercising, you don't need to own any shares at all.  Even if you do exercise, you can just buy them on the market and sell right away so I wouldn't worry about what you happen to be holding. The rules for what you can trade with a cash instead of a margin account vary by broker, I think.  You can usually buy puts and calls in a cash account, but more advanced strategies, such as writing options, are prohibited.  Ask your broker or check their help pages to see what you have available to you." Think of options as insurance. An insurance company makes money by selling the policies at a rate slightly higher than the average payout.  Most options expire worthless. This is because most options are purchased by hedge funds. To 'hedge' means taking out insurance in case your position goes against you. So the sellers of options obtain a price that covers their (averaged) losses plus provides them with a profit for their trouble.  An option has an amount that it declines in value each day (called theta). At the expiration date the option is worth zero (if it is out-of-the-money). So it is option writers that, typically, make money in the options market (as they are the sellers of insurance). If they didn't make money selling options they would not sell them.  For example, the February call option on SPY strike 200 traded at 8.81 on 12/30. Since then it has crumbled in value to 0.14. The option writer currently stands to make a huge profit.  So, just as with insurance, you (generally) never make money by buying insurance. But the sellers of insurance tend to make money as do the writers of options.  Edit: Theta @ Investopedia 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). Thanks. Just to clarify I am looking for a more value-neutral answer in terms of things like Sharpe ratios. I think it's an oversimplification to say that on average you lose money because of put options - even if they expire uselessly 90% of the time, they still have some expected payoff that kicks in 10% of the time, and if the price is less than the expected payoff you will earn money in the long term by investing in put options (I am sure you know this as a PhD student I just wanted to get it out there.)I guess more formally my question would be are there studies on whether options prices correspond well to the diversification benefits they offer from an MPT point of view. Try wallstreetsurvivor.com It gives you $100k of pretend money when you sign up, using which you can take various courses on the website. It will teach you how to buy/sell stocks and build your portfolio. I am not sure if they do have Options Trading specifically, but their course line up is great!