How can I find ISIN numbers for stock options?
"Because an equity option can be constructed at essentially any price by two willing counterparties on an exchange, there are not enough ISINs to represent the entire (i.e. infinite) option chain for even a single stock on a single expiration date.  As a result, ISINs are not generated for each individual possible options contract.  Instead the ISIN is used only to refer to the ""underlying"" symbol, and a separate formula is used to refer to the specific option contract for that symbol: So that code you pasted is not an ISIN but rather the standard US equity option naming scheme that you need to provide in addition to the ISIN when talking to your broker. Note that ISINs and formulas for referring to option contracts in other countries can behave quite differently.  Also, there are many countries and markets that don't need ISINs because the products in question only exist on a single exchange.  In those cases the exchange is pretty much free to make up whatever ID scheme it wants. P.S. Now I'm curious how option chains are identified for strike prices above $99,999.  I looked up the only stock I can think of that trades above that price (BRK.A), but it doesn't seem to have an option chain (or at least Google doesn't show it) ..." Go to http://www.isincodes.net/, and enter your data. For example entering Alphabet gives you the ISIN US02079K1079 (for standard US shares). If you want to understand the number format (and build them yourself), check wikipedia: https://en.wikipedia.org/wiki/International_Securities_Identification_Number
A bullish (or 'long') call spread is actually two separate option trades.  The A/B notation is, respectively, the strike price of each trade. The first 'leg' of the strategy, corresponding to B, is the sale of a call option at a strike price of B (in this case $165).  The proceeds from this sale, after transaction costs, are generally used to offset the cost of the second 'leg'. The second 'leg' of the strategy, corresponding to A, is the purchase of a call option at a strike price of A (in this case $145). Now, the important part: the payoff.  You can visualize it as so. This is where it gets a teeny bit math-y.  Below, P is the profit of the strategy, K1 is the strike price of the long call, K2 is the strike price of the short call, T1 is the premium paid for the long call option at the time of purchase, T2 is the premium received for the short call at the time of sale, and S is the current price of the stock.  For simplicity's sake, we will assume that your position quantity is a single option contract and transaction costs are zero (which they are not). P = (T2 - max(0, S - K2)) + (max(0, S - K1) - T1) Concretely, let's plug in the strikes of the strategy Nathan proposes, and current prices (which I pulled from the screen).  You have: P = (1.85 - max(0, 142.50 - 165)) - (max(0, 142.50 - 145)) = -$7.80 If the stock goes to $150, the payoff is -$2.80, which isn't quite break even -- but it may have been at the time he was speaking on TV. If the stock goes to $165, the payoff is $12.20. Please do not neglect the cost of the trades!  Trading options can be pretty expensive depending on the broker.  Had I done this trade (quantity 1) at many popular brokers, I still would've been net negative PnL even if NFLX went to >= $165. "First, you mentioned your brother-in-law has ""$100,000 in stock options (fully vested)"". Do you mean his exercise cost would be $100,000, i.e. what he'd need to pay to buy the shares? If so, then what might be the estimated value of the shares acquired? Options having vested doesn't necessarily mean they possess value, merely that they may be exercised. Or did you mean the estimated intrinsic value of those options (estimated value less exercise cost) is $100,000? Speaking from my own experience, I'd like to address just the first part of your question: Have you treated this as you would a serious investment in any other company? That is, have you or your brother-in-law reviewed the company's financial statements for the last few years? Other than hearing from people with a vested interest (quite literally!) to pump up the stock with talk around the office, how do you know the company is: BTW, as an option holder only, your brother-in-law's rights to financial information may be limited. Will the company share these details anyway? Or, if he exercised at least one option to become a bona-fide shareholder, I believe he'd have rights to request the financial statements – but company bylaws vary, and different jurisdictions say different things about what can be restricted. Beyond the financial statements, here are some more things to consider: The worst-case risk you'd need to accept is zero liquidity and complete loss: If there's no eventual buy-out or IPO, the shares may (effectively) be worthless. Even if there is a private market, willing buyers may quickly dry up if company fortunes decline. Contrast this to public stock markets, where there's usually an opportunity to witness deterioration, exit at a loss, and preserve some capital. Of course, with great risk may come great reward. Do your own due diligence and convince yourself through a rigorous analysis — not hopes & dreams — that the investment might be worth the risk." What is a good resource to learn about options trading strategies? Options are a quite advanced investment form, and you'd do well to learn a lot about them before attempting to dive into this fairly illiquid market. Yale's online course in financial markets covers the Options Market and is a good starting point to make sure you've got all the basics. You may be familiar with most of it, but it's a decent refresher on lingo and Black-Scholes. How can I use options to establish some cash flow from long standing investments while minimizing capital gains expenses? This question seems designed to get people to talk about covered calls. Essentially, you sell call contracts: you let people buy things you already have at a price in the future, at their whim. They pay you for this option, though usually not much if the options aren't in the money. You can think of this as trading any return above the call option for a bit of extra cash.  I don't invest with taxable accounts, but there are significant tax consequences for options. Because they expire, there will be turnover in your portfolio, and up front income when you take the sell side. So if you trade in options with close expiration dates, you'll probably end up with a lot of short-term capital gains, which are treated as normal income. One strategy is to trade in broad-based stock index options, which have favorable tax treatments. Some people have abused this though to disguise normal income as capital gains, so it could go away. Obviously the easy approach is to just use a tax advantaged account for options trading. An ETF might also be able to handle the turnover on your behalf, for example VIX is a series of options on S&P500 options. A second strategy I've heard of is buying calls and puts at a given strike price. For example, if you bought Dec '13 calls and puts on SPX @ 115 today, it would cost you about $35 dollars. If the price moves more than 35 dollars away from 115 by DEC '13 (in either direction), you've made a profit. If you reflect on that for a bit, you'll see why VIX is considered a volatility index. I guess I should mention that shorting a stock and buying a put option at the market price are very similar, with the exception that your loss is limited to the price of the option.  Is there ever an instance where options investing is not speculative? The term 'speculative' is not well defined. For many people, the answer is no. It's very easy to just buy put options and wait for prices to fall, or call options and wait for prices to rise. Moreover, the second strategy above essentially gives you similar performance to a stock without paying full price. These all fall under the headline of increasing a risk portfolio rather than decreasing it, which I figure is a decent definition of speculation. On the other hand, there are ways to use options minimize risk rather than increase it. You can buy underwater options as portfolio insurance, if your portfolio drops below a certain amount, you still have the right to sell it at a higher one. And the Case-Schiller index is run in part, on the hopes that one day there might be a thriving market for real estate options (or futures). When you buy a home or lend money to someone to buy one, you could buy regional Case-Schiller options to protect you if the regional market tanks. But in all of these cases, it's required for someone else to take the opposite trade. Risk isn't reduced, it's traded around. So technically, there is a speculative element to these as well. I think the proper question here is whether speculation is present, but whether speculation can be put to good ends. Without speculators, the already very thin market for options would shrivel faster. "The change is generally known as the Options Symbology Initiative (or ""OSI"") and there is a highly comprehensive guide to what occurred here. The basic gist of what occurred was a shift FROM: A coded system in which a shorter (3   to 5 letter symbol) could be used, but   the symbols required a data source to   determine what they meant. MSQ AD   used to be a MSFT Jan 20 option, but   you had to look up MSQ in a table to   know that. TO: A system in which much longer symbols   are needed, but they contain all the   information required to identify a   unique option: DELL 4.000 C 5/16/2010   isn't easy to type, but once you know   how to read it, it's easy to see that   it's an option on DELL, expiring on May 16th 2010, is a call (rather   than a put,) and has a strike price   of 4. As to why they did it, there are a number of benefits, but most important reason is this one:  they were running out of symbols.  The number of permutations of 3-5 letter symbols had been exceeded by the number of options that had been listed, resulting in the need to ""recycle"" symbols.   This meant that a current option symbol would be the same as an old one, in some cases on a different stock, which was wreaking havoc on historical data." "Their algorithm may be different (and proprietary), but how I would to it is to assume that daily changes in the stock are distributed normally (meaning the probability distribution is a ""bell curve"" - the green area in your chart).  I would then calculate the average and standard deviation (volatility) of historical returns to determine the center and width of the bell curve (calibrating it to expected returns and implied volaility based on option prices), then use standard formulas for lognormal distributions to calculate the probability of the price exceeding the strike price. So there are many assumptions involved, and in the end it's just a probability, so there's no way to know if it's right or wrong - either the stock will cross the strike or it won't." Yahoo Finance's Historical Prices section allows you to look up  daily historical quotes for any given stock symbol, you don't have to hit a library for this information. Your can choose a desired time frame for your query, and the dataset will include High/Low/Close/Volume numbers. You can then download a CSV version of this report and perform additional analysis in a spreadsheet of your choice. Below is Twitter report from IPO through yesterday: http://finance.yahoo.com/q/hp?s=TWTR&a=10&b=7&c=2013&d=08&e=23&f=2014&g=d "You can always ask. The answer is likely to be ""no"" -- the company is probably not set up to be able to tweak that number  on a case by case basis. I'm not sure whether there are regulations which might kick in, as well; these plans are regulated to prevent abuse and that tends to make doing anything unusual difficult. Find another tax-deferred/tax-advantaged investment and route the money there?" "There are a few different ""kinds"" of implied volatility. They are all based on the IVs obtained from the option pricing model you use. (1) Basically, given a few different values (current stock price, time until expiration, right of option, exercise style, strike of the option, interest rates, dividends, etc), you can obtain the IV for a given option price. If you look at the bid of an option, you can calculate the IV for that bid. If you look at the ask, there's a different IV for the ask. You can then look at the mid price, then you have a different IV, and so on and so on. And that's for each strike, in each expiration cycle! So you have a ton of different IVs. (2) In many option trading platforms, you'll see another kind of IV: the IV for each specific expiration cycle. That's calculated based on some of the IVs I mentioned on topic (1). Some kind of aggregation (more on this later). (3) Finally, people often talk about ""the IV of stock XYZ"". That's, again, an aggregation calculated from many of the IVs mentioned on topic (1). Now, your question seems to be: which IVs, from which options, from which months, with which weight, are part of the expiration cycle IV or for the IV of the stock itself? It really depends on the trading platform you are talking about. But very frequently, people will use a calculation similar to how the CBOE calculates the VIX. Basically, the VIX is just like the IV described on topic (3) above, but specifically for SPX, the S&P 500 index. The very detailed procedure and formulas to calculate the VIX (ie, IV of SPX) is described here: http://cfe.cboe.com/education/vixprimer/about.aspx If you apply the same (or a similar) methodology to other stocks, you'll get what you could call ""the IV of stock XYZ""." You won't be able to know the trading activity in a timely, actionable method in most cases. The exception is if the investor (individual, fund, holding company, non-profit foundation, etc) is a large shareholder of a specific company and therefore required to file their intentions to buy or sell with the SEC. The threshold for this is usually if they own 5% or greater of the outstanding shares. You can, however, get a sense of the holdings for some of the entities you mention with some sleuthing. Publicly-Traded Holding Companies Since you mention Warren Buffett, Berkshire Hathaway is an example of this. Publicly traded companies (that are traded on a US-based exchange) have to file numerous reports with the SEC. Of these, you should review their Annual Report and monitor all filings on the SEC's website. Here's the link to the Berkshire Hathaway profile. Private Foundations Harvard and Yale have private, non-profit foundations. The first place to look would be at the Form 990 filings each is required to file with the IRS. Two sources for these filings are GuideStar.org and the FoundationCenter.org. Keep in mind that if the private foundation is a large enough shareholder in a specific company, they, too, will be required to file their intentions to buy or sell shares in that company. Private Individuals Unless the individual publicly releases their current holdings, the only insight you may get is what they say publicly or have to disclose — again, if they are a major shareholder. "1. Most of the information you want can be found in the annual report of the company. Go to their official website, look for shareholders information and then download the annual report. This will answer: ""number of issued stock, voting rights, if there is more than one kind of stock, etc. In summary all the legal and formal details of a given stock. 2. After reading the annual report, check on investors websites to see if you can find analyst reports written on this company. You can sometimes find them in some free newsletters. These reports will complete the information you have found in the annual report like ""if the dividends are always paid, etc.""" The closest I can think of from the back of my head is http://finviz.com/map.ashx, which display a nice map and allows for different intervals. It has different scopes (S&P500, ETFs, World), but does not allow for specific date ranges, though. "Just as a matter of research, apparently there is a way to find high option volumes such as a site here: https://www.barchart.com/options/volume-leaders/stocks However, that information is going to be heavily skewed by ""underlying security that moved a lot more than expected and probably got a lot of positions filled incidentally today"", but I think it is a good place to start building up a list of securities with a lot of option interest. There is also a tab there for ETFs. This will not tell you exactly that a particular stock always has high option volume, but most of the ones that show up there repeatedly and across multiple strike prices will meet your criteria." "As JoeTaxpayer says, there's a lot you can do with just the stock price. Exploring that a bit: Stock prices are a combination of market sentiment and company fundamentals. Options are just a layer on top of that. As such, options are mostly formulaic, which is why you have a hard time finding historical option data -- it's just not that ""interesting"", technically. ""Mostly"" because there are known issues with the assumptions the Black-Scholes formula makes. It's pretty good, and importantly, the market relies on it to determine fair option pricing. Option prices are determined by: Relationship of stock price to strike. Both distance and ""moneyness"". Time to expiration. Dividends. Since dividend payments reduce the intrinsic value of a company, the prospect of dividend payments during the life of a call option depresses the price of the option, as all else equal, without the payments, the stock would be more likely to end up in the money. Reverse the logic for puts. Volatility. Interest rates. But this effect is so tiny, it's safe to ignore. #4, Volatility, is the biggie. Everything else is known. That's why option trading is often considered ""volatility trading"". There are many ways to skin this cat, but the result is that by using quoted historical values for the stock price, and the dividend payments, and if you like, interest rates, you can very closely determine what the price of the option would have been. ""Very closely"" depending on your volatility assumption. You could calculate then-historical volatility for each time period, by figuring the average price swing (in either direction) for say the past year (year before the date in question, so you'd do this each day, walking forward). Read up on it, and try various volatility approaches, and see if your results are within a reasonable range. Re the Black-Scholes formula,  There's a free spreadsheet downloadable from http://optiontradingtips.com. You might find it useful to grab the concept for coding it up yourself. It's VBA, but you can certainly use that info to translate in your language of choice. Or, if you prefer to read Perl, CPAN has a good module, with full source, of course. I find this approach easier than reading a calculus formula, but I'm a better developer than math-geek :)" James Roth provides a partial solution good for stock picking but let's speed up process a bit, already calculated historical standard deviations: Ibbotson, very good collection of research papers here, examples below Books This is exactly how I started, starting a simulation account on the CBOE website just to see what situation was profitable because it was all greek to me. Actually after learning the greeks, I realize that site was worse and eventually read some books and got better tools. The screenshot you have is telling you the strikes, but unfortunately they are showing you the technical name of the contract on the exchanges. For example, just like you type in AAPL to buy shares of AAPL stock, you can type in VIX1616K16E to get that one particular contract, expiration and strike. So lets break it down just by inferring, because this is what I just did with that picture: You know the current price of VIX, $17.06 Calls expiring November 16th, 2016:  What is changing? SYMBOL / YEAR / EXPIRATION DAY / STRIKE / OPTION-STYLE (?) So knowing that in the money options will be more expensive, and near the money options will be slightly cheaper, and out the money will be even cheaper, you can see what is going on, per expiration.