How to tell if an option is expensive
An option, by definition, is a guess about the future value of the stock. If you guess too aggressively, you lose the purchase price of the option; if you guess too conservatively, you may not take the option or may not gain as much as you might have. You need to figure out what you expect to happen, and how confident you are about it, against the cost of taking the option -- and be reasonably confident that the change in the stock's value will be at least large enough to cover the cost of buying into the game. Opinion: Unless you're comfortable with expectation values and bell curves around them, it's significantly easier to lose money on options than to profit on them. And I'm not convinced that even statisticians can really do this well. I've always been told that the best use for options is hedging an investment you've already made; treating them as your primary bet is gambling, not investment. One way is to compare the implied volatility with the realised volatility over a period similar to the time left to expiry. However there are plenty of reasons why the implied may be higher than the historical, for example because the market volatility has increased overall or because the underlying company is going to report their results before the option expires.
Yes When exercising a stock option you will be buying the stock at the strike price so you will be putting up your money, if you lose that money you can declare it as a loss like any other transaction. So if the stock is worth $1 and you have 10 options with a strike at $0.50 you will spend $500 when you exercise your options. If you hold those shares and the company is then worth $0 you lost $500. I have not verified my answer so this is solely from my understanding of accounting and finance. Please verify with your accountant to be sure. I'm not positive my answer is complete, but from information on my broker's website, the following fees apply to a US option trade (which I assume you're concerned with given fee in dollars and the mention of the Options Clearing Corporation): They have more detail for other countries -- see https://www.interactivebrokers.co.uk/en/index.php?f=commission&p=options1 for North America.  Use the sub-menu near the top of the page to pick Europe or Asia. The brokerage-charged commission for this broker is as low as $0.25 per contract with a $1.00 minimum.  Though I've been charged less than $1 to STO an options position, as well as less than $1 to BTC an options position, so not sure about that minimum. Regarding what I read as your overall underlying question (why are option fees so high), in my research this broker has one of the cheapest commission rates on options I've ever seen.  When I participate in certain discussions, I'm routinely told that these fees are unbelievable and that $5.95, $7.95, or even $9.95 are considered low fees.   I've heard this so much, and discussed commissions with enough people who've refused to switch brokers, that I conclude there just isn't enough competition to drive prices lower.  If most people won't switch brokers to go from $9.95 to $1 per trade, there simply isn't a reason to lower rates. Yes, past option prices are available for many options, but as far as I know not for free.  You can get them from, for example, OptionMetrics.  Probably there are other providers as well, which may be cheaper for an individual or small institution. OptionMetrics data comes from the National Best Bid and Offer.  Probably there are some over-the-counter options that are not included here, but for someone asking this question, OptionMetrics will most likely have the option you are interested in. Power Options is one such example of what you seek, not cheap, but one good trade will recover a year's fee.  There's a lot you can do with the stock price alone as most options pricing will follow Black Scholes.  Keep in mind, this is a niche, these questions, while interesting to me, generate little response here. "P/E is a useful tool for evaluating the price of a company, but only in comparison to companies in similar industries, especially for industries with well-defined cash flows.  For example, if you compared Consolidated Edison (NYSE:ED) to Hawaiian Electric (NYSE:HE), you'll notice that HE has a significantly higher PE. All things being equal, that means that HE may be overpriced in comparison to ED. As an investor, you need to investigate further to determine whether that is true. HE is unique in that it is a utility that also operates a bank, so you need to take that into account. You need to think about what your goal is when you say that you are a ""conservative"" investor and look at the big picture, not a magic number. If conservative to you means capital preservation, you need to ensure that you are in investments that are diversified and appropriate. Given the interest rate situation in 2011, that means your bonds holding need to be in short-duration, high-quality securities. Equities should be weighted towards large cap, with smaller holdings of international or commodity-associated funds. Consider a target-date or blended fund like one of the Vanguard ""Life Strategy"" funds." From what I see, it is more like .70 per contract, with a $1 minimum (for options that trade over a dime.)   IB does not provide any help, at all, so you have to know what you are doing.  I use tradeking, which charges about $6 for a contract, but you can call them for help if needed. There looks to be other fees for IB, like when you cancel an order, but that can be offset by other trades. It is one of the reason the Motley Fool Stock Adviser service has recommended IB for an investment. I can often get the option at [a] price [between bid and ask] The keyword you use here is quite relevant: often. More realistically, it's going to be sometimes. And that's just how supply and demand should work.  The ask is where you know you can buy right away. If you don't wanna buy at ask, you can try and put a higer bid but you can only hope someone will take it before the price moves. If prices are moving up fast, you will have missed a chance if you gambled mid-spread. Having said that, the larger the spread is, the more you should work with limits mid-spread. You don't want to just take ask or bid with illiquid options. Make a calculation of the true value of the option (i.e. using the Black Scholes Model), then set your bid around there. Of course, if not only the option but also the underlying is illiquid, this all gets even more difficult. ode2k noted the liquidity can very wildly especially 9 months out and there will be little volume even in the largest stocks.  Victor noted standard measures of liquidity don't always apply cleanly to options as they are priced using a hybrid of model and market inputs.  So your question is generally very hard to answer on SE, but you can get an answer yourself without too much trouble. The best way to get a feel for slippage in your case is to just get quotes.  Most systems should let you get a quote for both buying and selling options at the same time.  This will give you a feeling for how much you are paying in spread.  Do the same for near dated options to get a feeling for spread size when you end up selling. You should factor in some widening of spreads at bad times, but this should get you a feeling for the scale of the slippage problem. You're realizing the perils of using a DCF analysis.  At best, you can use them to get a range of possible values and use them as a heuristic, but you'll probably find it difficult to generate a realistic estimate that is significantly different than where the price is already. Sounds to me like you're describing just how it should work.  Ask is at 30, Bid is at 20; you offer a new bid at 25.  Either: Depending on liquidity, one or the other may be more likely. This Investorplace article on the subject describes what you're seeing, and recommends the strategy you're describing precisely. Instead of a market order, take advantage of the fact that the options world truly is a marketplace — one where you can possibly get a better price just by asking. How does that work? If you use a limit order (instead of a market order) when opening a position, you can tell your broker how much you are willing to pay to enter a trade. For example, if you enter a limit price of $1.15, you can see whether the market-maker will bite. You will be surprised at how many times you will get your price (i.e., $1.15) instead of the ask price of $1.30. If your order at $1.15 is not filled after a few minutes, you can modify your order and pay the ask price by entering a market order or limit order at the ask price (that is, you can tell your broker to pay no more than $1.30). "You can interpret prices in any way you wish, but the commonly quoted ""price"" is the last price traded. If your broker routes those orders, unlikely because they will be considered ""unfair"" and will probably be busted by the exchange, the only way to drive the price to the heights & lows in your example is to have an overwhelming amount of quantity relative to the order book. Your orders will hit the opposing limit orders until your quantity is exhausted, starting from the best price to the worst price. This is the functional equivalent to a market order." The answer is actually very simple: the cost of data. Seriously. Call the CBOE tomorrow and ask yourself. They have two big programs:  1) the penny pilot program, where options trade at penny increments instead of 5 cent increments. This is only extended to a select few symbols because of the amount of data this can generate is too much for the data vendors. Data vendors store and sell historical data. The exchanges themselves often have a big data vending business too. 2) the weekly options program, where only select symbols get these chains because of the amount of data they will generate. Liquidity and demand are factors in determining if the CBOE will consider enabling those series on new issues. (although they have to give the list of which symbols are on these programs to the SEC) "Often you are right, and the current information is ""priced in"", but I would say in times of market boom like this that the market can definitely overprice. Price is driven by trades/last trade. Someone may be willing to pay X, and do so, making the price now X, but that does not mean it is worth X. You could very well be paying a premium for it's perceived desirability. This is why investors/analysts spend time and energy on valuations, they want to compare the markets current price to what the price theoretically should/would be if it were purely driven by the data, in effect trying to remove sentiment from the equation to gain a more realistic idea of what a company is worth.  Side note adding on that, don't mistake this as saying one should pay a lot of attention to analysts or their price targets, though analysts do have insightful things to say." So, child, your goal is to make money? This is usually achieved by selling goods (say, lemonade) at a price that exceeds their cost (say, sugar, water and, well, lemons). Options, at first, are very much same in that you can buy the right to engage in a specific future trade. You make money in this situation if the eventual returns from the scheduled trade cover the cost of purchasing the option. Otherwise you can simply opt out of the trade -- you purchased the right to trade, after all, not any type of obligation. Makes sense? Good. Because what follows is what makes options a little different. That is, if you sell that same right to engage in a specific trade the situation is seemingly reversed: you lock in your return at the outset, but the costs aren't fully realized until the trade is either consumed or declined by the owner of the option. And keep in mind that it is always the owner of the option who is in the driver's seat; they may sell the option, hold on to it and do nothing, or use it to engage in the anticipated trade. And that's really all there's to it. "I look for buying a call option only at the money, but first understand the background above: Let's suppose X stock is being traded by $10.00 and it's January The call option is being traded by $0.20 with strike $11.00 for February. (I always look for 2% prize or more) I buy 100 stocks by $10.00 each and sell the option, earning $0.20 for each X stock. I will have to deliver my stocks by $11.00 (strike value agreed). No problem for me here, I took the prize plus the gain of $1.00. (continuing from item 3) I still can sell the option for the next month with strike equal or higher than that I bought. For instance, I can sell a call option of strike $10.00 and it might be worth to deliver stocks by $10.00 and take the prize. (continuing from item 3) Probably, it won't be possible to sell a call option with strike at the price that I paid for the stock, but that's not a problem. At the end of the option life (in February), the strike was $11.00 but the stock's price is $8.00. I got the $0.20 as prize and my stocks are free for trade again. I'll sell the call option for March with strike $9.00 (taking around 2% of prize). Well, I don't want to sell my stocks by $9.00 and make loss, right? But I'm selling the call option anyway. Then I wait till the price of the stock gets near the strike value (almost ATM) and I ""re-buy"" the option sold (Example: [StockX]C9 where C means month = March) and sell again the call option with higher strike to April (Example [StockX]D10, where D means month = April) PS.: At item 9 there should be no loss between the action of ""re-buy"" and sell to roll-out to the next month. When re-buying it with the stock's price near the strike, option value for March (C9) will be lower than when selling it to April (D10). This isn't any rule to be followed, this is just a conservative (I think they call it hedge) way to handle options and stocks. Few free to make money according to your goals and your style. The perfect rule is the one that meet your expectation, don't take the generalized rules too serious."