Why are options created?
The main reason is that you move from the linear payoff structure to a non-linear one. This is called convexity in finance. With options you can design a payoff structure in almost any way to want it to be. For example you can say that you only want the upside but not the downside, so you buy a call option. It is obvious that this comes at a price, the option premium. Or equivalently you buy the underlying and for risk management reasons buy a put option on top of it as an insurance. The price of the put could be seen as the insurance premium. You can of course combine options in more complicated ways so that you e.g. profit as long as the underlying moves strongly enough in either direction. This is called a straddle. Do you need to buy car insurance?  If you do, you are buying to open a put option. "At my soon to be legendary Stock Options Cafe, I recently wrote an article ""Betting On Apple at 9 to 2.""  It described a trade in which a 35% move in a stock over a fixed time (2 years) would result in a 354% gain in one's bet. In this case, the options serve to create remarkable leverage for speculators. In general, option help provide liquidity and extend the nature of the risk/reward curve.  There are option trades that range from conservative (e.g. a 'covered call') to wildly speculative, as the one I described above." "In general economic theory, there are always two markets created based on a need for a good; a spot market (where people who need something now can go outbid other people who need the same thing), and a futures market (where people who know they will need something later can agree to buy it for a pre-approved price, even if the good in question doesn't exist yet, like a grain crop). Options exist as a natural extension of the futures market. In a traditional future, you're obligated, by buying the contract, to execute it, for good or ill. If it turns out that you could have gotten a lower price when buying, or a higher price when selling, that's tough; you gave up the ability to say no in return for knowing, a month or three months or even a year in advance, the price you'll get to buy or sell this good that you know you need. Futures thus give both sides the ability to plan based on a known price, but that's their only risk-reduction mechanism. Enter the option. You're the Coors Brewing Company, and you want to buy 50 tons of barley grain for delivery in December in order to brew up for the Super Bowl and other assorted sports parties. A co-op bellies up to close the deal. But, since you're Coors, you compete on price with Budweiser and Miller, and if you end up paying more than the grain's really worth, perhaps because of a mild wet fall and a bumper crop that the almanac predicts, then you're going to have a real bad time of it in January. You ask for the right to say ""no"" when the contract falls due, if the price you negotiate now is too high based on the spot price. The co-op now has a choice; for such a large shipment, if Coors decided to leave them holding the bag on the contract and instead bought it from them anyway on a depressed spot market, they could lose big if they were counting on getting the contract price and bought equipment or facilities on credit against it. To mitigate those losses, the co-op asks for an option price; basically, this is ""insurance"" on the contract, and the co-op will, in return for this fee (exactly how and when it's paid is also negotiable), agree to eat any future realized losses if Coors were to back out of the contract.  Like any insurance premium, the option price is nominally based on an outwardly simple formula: the probability of Coors ""exercising"" their option, times the losses the co-op would incur if that happened. Long-term, if these two figures are accurate, the co-op will break even by offering this price and Coors either taking the contract or exercising the option. However, coming up with accurate predictions of these two figures, such that the co-op (or anyone offering such a position) would indeed break even at least, is the stuff that keeps actuaries in business (and awake at night)."
Uber has to be first to create a self driving taxi fleet and maybe even keep the option of a human driver for the prices they *actually* want to charge(for profitability). I'm sure there will be pushback from Luddites and people who (understandably imo) don't trust a computer with their lives. There are some excellent responses to this question at the time of this post. I have had the greatest success writing 1-month options. The 2 main reasons are as follows: With little time to expiration as stated in the question the implied volatility of the option is dictating the premium. Looking for the highest premiums is a mistake because you are taking a conservative strategy and re-creating it into a high-risk strategy. My sweet spot is a 2-4% monthly return for my initial profit and then mastering management techniques to protect that return and even enhancing it. "There are two reasons why most options aren't exercised.  The first is obvious, and the second, less so. The obvious: An option that's practically worthless doesn't get exercised. Options that reach expiry and remain unexercised are almost always worthless bets that simply didn't pay off. This includes calls with strikes above the current underlying price, and puts with strikes below it. A heck of a lot of options. If an option with value was somehow left to expire, it was probably a mistake, or else the transaction costs outweighed the value remaining; not quite worthless, but not ""worth it"" either. The less obvious: An option with value can be cancelled any time before expiration. A trader that buys an option may at some point show a gain sooner than anticipated, or a loss in excess of his tolerance. If a gain, he may want to sell before expiry to realize the gain sooner. Similarly, if a loss, he may want to take the loss sooner. In both cases, his capital is freed up and he can take another position. And — this is the key part — the other end matched up with that option sale is often a buyer that had created (written) exactly such an option contract in the first place – the option writer – and who is looking to get out of his position. Option writers are the traders responsible, in the first place, for creating options and increasing the ""open interest.""  Anybody with the right kind and level of options trading account can do this. A trader that writes an option does so by instructing his broker to ""sell to open"" a new instance of the option. The trader then has a short position (negative quantity) in that option, and all the while may be subject to the obligations that match the option's exercise rights. The only way for the option writer to get out of that short position and its obligations are these: Not by choice:  To get assigned. That is to say: a buyer exercised the option. The writer has to fulfill his obligation by delivering the underlying (if a call) to the option holder, or buying the underlying (if a put) from the option holder. Not by choice: The option expires worthless. This is the ideal scenario for a writer because 100% of the premium received (less transaction costs) is profit. By choice: The writer is free to buy back exactly the same kind of option before expiry using a ""buy to close"" order with their broker. Once the option has been purchased with a ""buy to close"", it eliminates the short position and obligation.  The option is cancelled.  The open interest declines. Options thus cancelled just don't live long enough to either expire or be exercised." Why is Facebook a favorite pick among business owners? Easy, with its growing popularity as the most visited social network, Facebook provides a viable platform to start, sustain a seller-buyer and create relationship. Facebook makes it to the top list among business owners whose aim is not only to gain a wide market outreach, but also to create and sustain a closer, intimate relationship with actual and potential customers on the web. So, what makes Facebook marketing for business the best online tool? Because it works in four ways ... "Cart's answer describes well one aspects of puts: protective puts; which means using puts as insurance against a decline in the price of shares that you own.  That's a popular use of puts.  But I think the wording of your question is angling for another strategy: Writing puts. Consider: Cart's strategy refers to the buyer of a put.  But, on the transaction's other side is a seller of the put – and ultimately somebody created or wrote that put contract in the first place!  That first seller of the put – that is, the seller that isn't just selling one they themselves bought – is the put writer. When you write a put, you are taking on the obligation to buy the other side's stock at the put exercise price if the stock price falls below that exercise price by the expiry date.  For taking on the obligation, you receive a premium, like how an insurance company charges a premium to insure against a loss. Example:  Imagine ABC Co. stock is trading at $25.00.  You write a put contract agreeing to buy 100 shares of ABC at $20.00 per share (the exercise price) by a given expiration date.  Say you receive $2.00/share premium from the put buyer.  You now have the obligation to purchase the shares from the put buyer in the event they are below $20.00 per share when the option expires – or, technically any time before then, if the buyer chooses to exercise the option early. Assuming no early assignment, one of two things will happen at the option expiration date: ABC trades at or above $20.00 per share. In this case, the put option will expire worthless in the hands of the put buyer.  You will have pocketed the $200 and be absolved from your obligation.  This case, where ABC trades above the exercise price, is the maximum profit potential. ABC trades below $20.00 per share.  In this case, the put option will be assigned and you'll need to fork over $2000 to the put buyer in exchange for his 100 ABC shares.  If those shares are worth less than $18.00 in the market, then you've suffered a loss to the extent they are below that price (times 100), because remember – you pocketed $200 premium in the first place.  If the shares are between $18.00 to $20.00, you're still profitable, but not to the full extent of the premium received. You can see that by having written a put it's possible to acquire ABC stock at a price lower than the market price – because you received some premium in the process of writing your put.  If you don't ""succeed"" in acquiring shares on your first write (because the shares didn't get below the exercise price), you can continue to write puts and collect premium until you do get assigned. I have read the book ""Money for Nothing (And Your Stocks for FREE!)"" by Canadian author Derek Foster.  Despite the flashy title, the book essentially describes Derek's strategy for writing puts against dividend-paying value stocks he would love to own.  Derek picks quality companies that pay a dividend, and uses put writing to get in at lower-than-market prices.  Four Pillars reviewed the book and interviewed Derek Foster: Money for Nothing: Book Review and Interview with Derek Foster. Writing puts entails risk.  If the stock price drops to zero then you'll end up paying the put exercise price to acquire worthless shares!  So your down-side can easily be multiples of the premium collected.  Don't do this until and unless you understand exactly how this works.  It's advanced. Note also that your broker isn't likely to permit you to write puts without having sufficient cash or margin in your account to cover the case where you are forced to buy the stock.  You're better off having cash to secure your put buys, otherwise you may be forced into leverage (borrowing) when assigned.  Additional Resources: The Montreal Exchange options guide (PDF) that Cart already linked to is an excellent free resource for learning about options.  Refer to page 39, ""Writing secured put options"", for the strategy above. Other major options exchanges and organizations also provide high-quality free learning material:" Not that I am aware. There are times that an option is available, but none have traded yet, and it takes a request to get a bid/ask, or you can make an offer and see if it's accepted. But the option chain itself has to be open. "Options have legitimate uses as a way of hedging a bet, but in the hands of anyone but an expert they're gambling, not investing. They are EXTREMELY volatile compared to normal stocks, and are one of the best ways to lose your shirt in the stock market yet invented. How options actually work is that you're negotiating a promise that, at some future date or range of dates, they will let you purchase some specific number of shares (call), or they will let you sell them that number of shares (put), at a price specified in the option contract. The price you pay (or are paid) to obtain that contract depends on what the option's seller thinks the stock is likely to be worth when it reaches that date. (Note that if you don't already own the shares needed to back up a put option, you're promising to pay whatever it takes to buy those shares so you can sell them at the agreed upon price.) Note that by definition you're betting directly against experts, as opposed to a normal investment where you're usually trying to ride along with the experts. You are claiming that you can predict the future value of the stock better than they can, and that you will make a profit (on the difference between the value locked in by the option and the actual value at that time) which exceeds the cost of purchasing the option in the first place.  Let me say that again: the option's price will have been set based on an expert's opinion of what the stock is likely to do in that time. If they think that it's really likely to be up $10 per share when the option comes due (really unlikely for a $20 stock!!!), they will try to charge you almost $10 per share to purchase the option at the current price. ""Almost"" because you're giving them a guaranteed profit now and assuming all the risk. If they're less sure it will go up that much, you'll pay less for the option -- but again, you're giving them hard money now and betting that you can predict the probabilities better than they can. Unless you have information that the experts don't have -- in which case you're probably committing insider trading -- this is a very hard bet to win. And it can be extremely misleading, since the price during the option period may cross back and forth over the ""enough that you'll make a profit"" line many times. Until you actually commit to exercising the option or not, that's all imaginary money which may vanish the next minute. Unless you are willing and able to invest pro-level resources in this, you'd probably get better odds in Atlantic City, and definitely get better odds in Las Vegas. If you don't see the sucker at the poker table, he's sitting in your seat. And betting against the guy who designed and is running the game is usually Not a Good Idea." There are quite a few reasons that a company may choose to pay dividends rather than hold cash [increasing the share value].   Of couse there are equally other set of reasons why a company may not want to give dividends and hold on to cash. Related question here Please explain the relationship between dividend amount, stock price, and option value?