Are binary options really part of trading?
"you bet that a quote/currency/stock market/anything will rise or fall within a period of time. ... So, what is the relationship with trading ? I see no trading at all since I don't buy or sell quotes. So, if you just wander in and say ""oh, hey, look, a bunch of options, i'm going to play games and have excitement"" then that is, in fact, some sort of gambling. Indeed, most trading activities will be like that to you. On the other hand, you might be engaged in other business where those things matter. You might be doing a lot of trading elsewhere in the market, for instance, and suddenly everyone freaks out and the stock market goes crazy and you lose a ton of money. To protect yourself from losing a ton of money, you might buy a binary option based on VIX (the volatility index) going over a certain level. If you're not in a business where you're buying it to protect yourself, then you should probably only buy the options if you have reason to think it'll be profitable and worth the risk. If you don't understand the risks, skip it." "If I really understood it, you bet that a quote/currency/stock market/anything will rise or fall within a period of time.    So, what is the relationship with trading ? I see no trading at all since I don't buy or sell quotes. You are not betting as in ""betting on the outcome of an horse race"" where the money of the participants is redistributed to the winners of the bet. You are betting on the price movement of a security. To do that you have to buy/sell the option that will give you the profit or the loss. In your case, you would be buying or selling an option, which is a financial contract. That's trading. Then, since anyone should have the same technic (call when a currency rises and put when it falls)[...] How can you know what will be the future rate of exchange of currencies? It's not because the price went up for the last minutes/hours/days/months/years that it will continue like that. Because of that everyone won't have the same strategy. Also, not everyone is using currencies to speculate, there are firms with real needs that affect the market too, like importers and exporters, they will use financial products to protect themselves from Forex rates, not to make profits from them. [...] how the brokers (websites) can make money ? The broker (or bank) will either: I'm really afraid to bet because I think that they can bankrupt at any time! Are my fears correct ? There is always a probability that a company can go bankrupt. But that's can be very low probability. Brokers are usually not taking risks and are just being intermediaries in financial transactions (but sometime their computer systems have troubles.....), thanks to that, they are not likely to go bankrupt you after you buy your option. Also, they are regulated to insure that they are solid. Last thing, if you fear losing money, don't trade. If you do trade, only play with money you can afford to lose as you are likely to lose some (maybe all) money in the process." As far as I have read, yes binary option is a part of trading. I saw tutorials on many sites like investopedia.com , verifyproducts.com etc. which clearly shows that in binary options, trader has to take a yes or no position on the price of any underlying asset and the resulting payoff will be either all or nothing. Due to such characteristic, it has become the easier way for beginners to enter in financial trading market.
This sometimes happens to me. It depends on how liquid the option is. Normally what I see happening is that the order book mutates itself around my order. I interpret this to mean that the order book is primarily market makers. They see a retail investor (me) come in and, since they don't have any interest in this illiquid option, they back off. Some other retail investor (or whatever) steps in with a market order, and we get matched up. I get a fill because I become the market maker for a brief while. On highly liquid options, buy limits at the bid tend to get swallowed because the market makers are working the spread. With very small orders (a contract or two) on very liquid options, I've had luck getting quick fills in the middle of the spread, which I attribute to MM's rebalancing their holdings on the cheap, although sometimes I like to think there's some other anal-retentive like me out there that hates to see such a lopsided book. :) I haven't noticed any particular tendency for this to happen more with puts or calls, or with buy vs sell transactions. For a while I had a suspicion that this was happening with strikes where IV didn't match IV of other strikes, but I never cared enough to chase it down as it was a minor part of my overall P/L. 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. Just romped a competition my school had, won $100. I'm not participating in this, but the key is to trade options. I made 244% in 2 months off only 3 trades. Won another competition last semester in my investment analysis class as well "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." "Great answer by @duffbeer. Only thing to add is that the option itself becomes a tradeable asset. Here's my go at filling out the answer from @duffbeer. ""Hey kid... So you have this brand-new video game Manic Mazes that you paid $50 for on Jan 1st that you want to sell two months from now"" ""Yes, Mr. Video Game Broker, but I want to lock in a price so I know how much to save for a new Tickle Me Elmo for my baby sister."" ""Ok, for $3, I'll sell you a 'Put' option so you can sell the game to me for $40 in two months."" Kid says ""Ok!"", sends $3 to Mr Game Broker who sends our kid a piece of paper saying: The holder of this piece of paper can sell the game Manic Mazes to Mr Game Broker for $40 on March 1st. .... One month later .... News comes out that Manic Mazes is full of bugs, and the price in the shops is heavily discounted to $30. Mr Options Trader realizes that our kid holds a contract written by Mr Game Broker which effectively allows our kid to sell the game at $10 over the price of the new game, so maybe about $15 over the price in the second-hand market (which he reckons might be about $25 on March 1st). He calls up our kid. ""Hey kid, you know that Put option that Mr Game Broker sold to you you a month ago, wanna sell it to me for $13?"" (He wants to get it a couple of bucks cheaper than his $15 fair valuation.) Kid thinks:  hmmm ... that would be a $10 net profit for me on that Put Option, but I wouldn't be able to sell the game for $40 next month, I'd likely only get something like $25 for it. So I would kind-of be getting $10 now rather than potentially getting $12 in a month. Note: The $12 is because there could be $15 from exercising the put option (selling for $40 a game worth only $25 in the second-hand market) minus the original cost of $3 for the Put option. Kid likes the idea and replies: ""Done!"". Next day kid sends the Put option contract to Mr Options Trader and receives $13 in return. Our kid bought the Put option and later sold it for a profit, and all of this happened before the option reached its expiry date." If you're into math, do this thought experiment: Consider the outcome X of a random walk process (a stock doesn't behave this way, but for understanding the question you asked, this is useful): On the first day, X=some integer X1. On each subsequent day, X goes up or down by 1 with probability 1/2. Let's think of buying a call option on X. A European option with a strike price of S that expires on day N, if held until that day and then exercised if profitable, would yield a value Y = min(X[N]-S, 0). This has an expected value E[Y] that you could actually calculate. (should be related to the binomial distribution, but my probability & statistics hat isn't working too well today) The market value V[k] of that option on day #k, where 1 < k < N, should be V[k] = E[Y]|X[k], which you can also actually calculate. On day #N, V[N] = Y. (the value is known) An American option, if held until day #k and then exercised if profitable, would yield a value Y[k] = min(X[k]-S, 0).  For the moment, forget about selling the option on the market. (so, the choices are either exercise it on some day #k, or letting it expire) Let's say it's day k=N-1.  If X[N-1] >= S+1 (in the money), then you have two choices: exercise today, or exercise tomorrow if profitable. The expected value is the same. (Both are equal to X[N-1]-S). So you might as well exercise it and make use of your money elsewhere. If X[N-1] <= S-1 (out of the money), the expected value is 0, whether you exercise today, when you know it's worthless, or if you wait until tomorrow, when the best case is if X[N-1]=S-1 and X[N] goes up to S, so the option is still worthless. But if X[N-1] = S (at the money), here's where it gets interesting. If you exercise today, it's worth 0. If wait until tomorrow, there's a 1/2 chance it's worth 0 (X[N]=S-1), and a 1/2 chance it's worth 1 (X[N]=S+1). Aha! So the expected value is 1/2. Therefore you should wait until tomorrow. Now let's say it's day k=N-2.  Similar situation, but more choices: If X[N-2] >= S+2, you can either sell it today, in which case you know the value = X[N-2]-S, or you can wait until tomorrow, when the expected value is also X[N-2]-S. Again, you might as well exercise it now. If X[N-2] <= S-2, you know the option is worthless. If X[N-2] = S-1, it's worth 0 today, whereas if you wait until tomorrow, it's either worth an expected value of 1/2 if it goes up (X[N-1]=S), or 0 if it goes down, for a net expected value of 1/4, so you should wait. If X[N-2] = S, it's worth 0 today, whereas tomorrow it's either worth an expected value of 1 if it goes up, or 0 if it goes down -> net expected value of 1/2, so you should wait. If X[N-2] = S+1, it's worth 1 today, whereas tomorrow it's either worth an expected value of 2 if it goes up, or 1/2 if it goes down (X[N-1]=S) -> net expected value of 1.25, so you should wait. If it's day k=N-3, and X[N-3] >= S+3 then E[Y] = X[N-3]-S and you should exercise it now; or if X[N-3] <= S-3 then E[Y]=0.  But if X[N-3] = S+2 then there's an expected value E[Y] of (3+1.25)/2 = 2.125 if you wait until tomorrow, vs. exercising it now with a value of 2; if X[N-3] = S+1 then E[Y] = (2+0.5)/2 = 1.25, vs. exercise value of 1; if X[N-3] = S then E[Y] = (1+0.5)/2 = 0.75 vs. exercise value of 0; if X[N-3] = S-1 then E[Y] = (0.5 + 0)/2 = 0.25, vs. exercise value of 0; if X[N-3] = S-2 then E[Y] = (0.25 + 0)/2 = 0.125, vs. exercise value of 0. (In all 5 cases, wait until tomorrow.) You can keep this up; the recursion formula is E[Y]|X[k]=S+d = {(E[Y]|X[k+1]=S+d+1)/2 + (E[Y]|X[k+1]=S+d-1) for N-k > d > -(N-k), when you should wait and see} or {0 for d <= -(N-k), when it doesn't matter and the option is worthless} or {d for d >= N-k, when you should exercise the option now}. The market value of the option on day #k should be the same as the expected value to someone who can either exercise it or wait. It should be possible to show that the expected value of an American option on X is greater than the expected value of a European option on X. The intuitive reason is that if the option is in the money by a large enough amount that it is not possible to be out of the money, the option should be exercised early  (or sold), something a European option doesn't allow, whereas if it is nearly at the money, the option should be held, whereas if it is out of the money by a large enough amount that it is not possible to be in the money, the option is definitely worthless. As far as real securities go, they're not random walks (or at least, the probabilities are time-varying and more complex), but there should be analogous situations. And if there's ever a high probability a stock will go down, it's time to exercise/sell an in-the-money American option, whereas you can't do that with a European option. edit: ...what do you know: the computation I gave above for the random walk isn't too different conceptually from the Binomial options pricing model. "It depends on the volatility of the underlying stock. But for ""normal"" levels of volatility, the real value of that option is probably $3.50! Rough estimates of the value of the option depending on volatility levels: Bottom line: unless this is a super volatile stock, it is trading at $3.50 for a reason. More generally: it is extremely rare to find obvious arbitrage opportunities in the market." Exchange traded options are issued in a way that there is no counter party risk.  Consider, stocks and options are held in street name. So, for example, if I am short and you are long shares, no matter what happens on my end, your shares are yours.  To be complete, it's possible to enter into a direct deal, where you have a contract for some non-standard option, but that would be very rare for the average investor. Yes, theoretically you can flip the shares you agreed to buy and make a profit, but you're banking on the market behaving in some very precise and potentially unlikely ways.  In practice it's very tricky for you to successfully navigate paying arbitrarily more for a stock than it's currently listed for, and selling it back again for enough to cover the difference.  Yes, the price could drop to $28, but it could just as easily drop to $27.73 (or further) and now you're hurting, before even taking into account the potentially hefty commissions involved. Another way to think about it is to recognize that an option transaction is a bet; the buyer is betting a small amount of money that a stock will move in the direction they expect, the seller is betting a large amount of money that the same stock will not.  One of you has to lose.  And unless you've some reason to be solidly confident in your predictive powers the loser, long term, is quite likely to be you. Now that said, it is possible (particularly when selling puts) to create win-win scenarios for yourself, where you're betting one direction, but you'd be perfectly happy with the alternative(s).   Here's an example.  Suppose, unrelated to the option chain, you've come to the conclusion that you'd be happy paying $28 for BBY.  It's currently (June 2011) at ~$31, so you can't buy it on the open market for a price you'd be happy with.  But you could sell a $28 put, promising to buy it at that price should someone want to sell it (presumably, because the price is now below $28). Either the put expires worthless and you pocket a few bucks and you're basically no worse off because the stock is still overpriced by your estimates, or the option is executed, and you receive 100 shares of BBY at a price you previously decided you were willing to pay.  Even if the list price is now lower, long term you expect the stock to be worth more than $28.  Conceptually, this makes selling a put very similar to being paid to place a limit order to buy the stock itself. Of course, you could be wrong in your estimate (too low, and you now have a position that might not become profitable; too high, and you never get in and instead just watch the stock gain in value), but that is not unique to options - if you're bad at estimating value (which is not to be confused with predicting price movement) you're doomed just about whatever you do. In my experience thanks to algorithmic trading the variation of the spread and the range of trading straight after a major data release will be as random as possible, since we live in an age that if some pattern existed at these times HFT firms would take out any opportunity within nanoseconds. Remember that some firms write algorithms to predict other algorithms, and it is at times like those that this strategy would be most effective. With regards to my own trading experience I have seen orders fill almost €400 per contract outside of the quoted range, but this is only in the most volatile market conditions. Generally speaking, event investing around numbers like these are only for top wall street firms that can use co-location servers and get a ping time to the exchange of less than 5ms. Also, after a data release the market can surge/plummet in either direction, only to recover almost instantly and take out any stops that were in its path. So generally, I would say that slippage is extremely unpredictable in these cases( because it is an advantage to HFT firms to make it so ) and stop-loss orders will only provide limited protection. There is stop-limit orders( which allow you to specify a price limit that is acceptable ) on some markets and as far as I know InteractiveBrokers provide a guaranteed stop-loss fill( For a price of course ) that could be worth looking at, personally I dont use IB.  I hope this answer provides some helpful information, and generally speaking, super-short term investing is for algorithms. 1) Yes, both of your scenarios would lead to earning $10 on the transaction, at the strike date. If you purchased both of them (call it Scenario 3), you would make $20. 2) As to why this transaction may not be possible, consider the following: The Call and Put pricing you describe may not be available. What you have actually created is called 'arbitrage' - 2 identical assets can be bought and sold at different prices, leading to a zero-risk gain for the investor. In the real marketplace, if an option to buy asset X in January cost $90, would an option to sell asset X in January provide $110?  Without adding additional complexity about the features of asset x or the features of the options, buying a Call option is the same as selling a Put option [well, when selling a Put option you don't have the ability to choose whether the option is exercised, meaning buying options has value that selling options does not, but ignore that for a moment]. That means that you have arranged a marketplace where you would buy a Call option for only $90, but the seller of that same option would somehow receive $110.  For added clarity, consider the following: What if, in your example, the future price ended up being $200? Then, you could exercise your call option, buying a share for $90, selling it for $200, making $110 profit. You would not exercise your put option, making your total profit $110. Now consider: What if, in your example, the future price ended up being $10? You would buy for $10, exercise your put option and sell for $110, making a profit of $100. You would not exercise your call option, making your total profit $100. This highlights that if your initial assumptions existed, you would earn money (at least $20, and at most, unlimited based on a skyrocketing price compared to your $90 put option) regardless of the future price. Therefore such a scenario would not exist in the initial pricing of the options. Now perhaps there is an initial fee involved with the options, where the buyer or seller pays extra money up-front, regardless of the future price. That is a different scenario, and gets into the actual nature of options, where investors will arrange multiple simultaneous transactions in order to limit risk and retain reward within a certain band of future prices.  As pointed out by @Nick R, this fee would be very significant, for a call option which had a price set below the current price. Typically, options are sold 'out of the money' initially, which means that at the current share price (at the time the option is purchased), executing the option would lose you money. If you purchase an 'in the money' option, the transaction cost initially would by higher than any apparent gain you might have by immediately executing the option. For a more realistic Options example, assume that it costs $15 initially to buy either the Call option, or the Put option. In that case, after buying both options as listed in your scenarios you would earn a profit if the share price exceeded $120 [The $120 sale price less the $90 call option = $30, which is your total fee initially], or dropped below $80 [The $110 Put price less the $80 purchase price = $30]. This type of transaction implies that you expect the price to either swing up, or swing down, but not fall within the band between $80-$120. Perhaps you might do this if there was an upcoming election or other known event, which might be a failure or success, and you think the market has not properly accounted for either scenario in advance. I will leave further discussion on that topic [arranging options of different prices to create specific bands of profitability / loss] to another answer (or other questions which likely already exist on this site, or in fact, other resources), because it gets more complicated after that point, and is outside the root of your question. One broker told me that I have to simply read the ask size and the bid size, seeing what the market makers are offering. This implies that my order would have to match that price exactly, which is unfortunate because options contract spreads can be WIDE. Also, if my planned position size is larger than the best bid/best ask, then I should break up the order, which is also unfortunate because most brokers charge a lot for options orders. The option is exercised. The option is converted into shares. That is an optional condition in closing that contract, hence why they are called options. "With stocks, you can buy or sell. If you sell first, that's called 'shorting.' As in ""I think linkedin is too high, I'm going to short it."" With options, the terminology is different, the normal process is to buy to open/sell to close, but if you were shorting the option itself, you would first sell to open, i.e you are selling a position to start it, effectively selling it short. Eventually, you may close it out, by buying to close.  Options trading is not for the amateur. If you plan to trade, study first and be very cautious." "Defining parity as ""parity is the amount by which an option is in the money"", I'd say there may be an arbitrage opportunity. If there's a $50 strike on a stock valued at $60 that I can buy for less than $10, there's an opportunity.  Keep in mind, options often show high spreads, my example above might show a bid/ask of $9.75/$10.25, in which case the last trade of $9.50 should be ignored in favor of the actual ask price you'd pay.  Mispricing can exist, but in this day and age, is far less likely."