What is the maximum number of options I can buy if the price is $0.01?
Options trading at $.01 have the same position limits as other options. Self regulatory organizations set the position limits for options which can be 250,000 contracts on one side of the book, as an example. Weeklies that are expiring soon have lots of liquidity while trading at $0.01, you can see this in Bank of America stock if interested
"fennec has a very good answer but i feel it provides too much information. So i'll just try to explain what that sentence says. Put option is the right to sell a stock. ""16 puts on Cisco at 71 cents"", means John comes to Jim and says, i'll give you 71 cent now, if you allow me to sell one share of Cisco to you at $16 at some point in the future ( on expiration date).  NYT quote says 1000 puts that means 1000 contracts - he bought a right to sell 100,000 shares of Cisco on some day at $16/share. Call option - same idea: right to buy a stock." "I place a trade, a limit order on a thinly traded stock. I want to buy 1000 shares at $10. The current price is $10.50. Someone places a market order for 500 shares. Another trader has a limit order for $10.10 for 400 shares. His order fills, and I get 100 at my price. I wait another day to see if I get any more shares. This is just an example of how it can work. I can place my order as ""all or none"" if I wish to avoid this." If you have $10000 and wish to buy 1000 shares of a $10 stock, you risk borrowing on margin if you go over a bit. For some people, that's a non-issue. Some folk with an account worth say, $250K don't mind going over now and then or even let the margin account run $100K on a regular basis.  But your question is about market orders. A limit order above the market price will fast-fill at the market anyway. When I buy a stock, it's longer term usually. A dime on a $30 share price won't affect my buy decision, so market is ok for me. You bought 1 share of Google at $67.05 while it has a current trading price of $1204.11. Now, if you bought a widget for under $70 and it currently sells for over $1200 that is quite the increase, no? Be careful of what prices you enter into a portfolio tool as some people may be able to use options to have a strike price different than the current trading price by a sizable difference. Take the gain of $1122.06 on an initial cost of $82.05 for seeing where the 1367% is coming. User error on the portfolio will lead to misleading statistics I think as you meant to put in something else, right? "As @ApplePie pointed out in their answer, at any given time there is a finite amount of stock available in a company. One subtlety you may be missing is that there is always a price associated with an offer to buy shares. That is, you don't put in an order simply to buy 1 share of ABC, you put in an order to buy 1 share of ABC for $10. If no one is willing to sell a share of ABC for $10, then your order will go unfilled. This happens millions of times a day as traders try to figure the cheapest price they can get for a stock. Practically speaking, there is always a price at which people are willing to sell their shares. You can put in a market order for 1 share of ABC, which says essentially ""I want one share of ABC, and I will pay whatever the market deems to be the price"". Your broker will find you 1 share, but you may be very unhappy about the price you have to pay! While it's very rare for a market to have nobody willing to sell at any price, it occasionally happens that no one is willing to buy at any price. This causes a market crash, as in the 2007-2008 financial crisis, when suddenly everyone became very suspicious of how much debt the major banks actually held, and for a few days, very few traders were willing to buy bank stocks at any price." First, a margin account is required to trade options.  If you buy a put, you have the right to deliver 100 shares at a fixed price, 50 can be yours, 50, you'll buy at the market. If you sell a put, you are obligated to buy the shares if put to you. All options are for 100 shares, I am unaware of any partial contract for fewer shares.  Not sure what you mean by leveraging the position, can you spell it out more clearly? Let's consider that transaction cost is 0(zero) for calculation. In the scenario you have stated, maximum profit that could be made is 55$, however risk is unlimited. Hedging can also be used to limit your losses, let's consider this scenario. Stock ABC trading @ 100$, I'll buy the stock ABC @ 100$ and buy a put option of ABC @ strike price 90$ for a premium of 5$ with an expiration date of 1 month. Possible outcomes I end up in a loss in 3 out of 4 scenarios, however my loss is limited to 15$, whereas profit is unlimited. "I think for this a picture is worth a thousand words.  This is a ""depth chart"" that I pulled from google images, specifically because it doesn't name any security.  On the left you have all of the ""bids"" to buy this security, on the right you have the ""asks"" to sell the security.  In the middle you have the bid/ask spread, this is the space between the highest bid and the lowest ask.  As you can see you are free to place you order to the market to buy for 232, and someone else is free to place their order to the market to sell for 234.  When the bid and the ask match there's a transaction for the maximum number of available shares.  Alternatively, someone can place a market order to buy or sell and they'll just take the current market price. Retail investors don't really get access to this kind of chart from their brokers because for the most part the information isn't terribly relevant at the retail level." A limit order is simply an order to buy at a maximum price or sell at a minimum price. For example, if the price is $100 and you want to sell if the price rises to $110, then you can simply put a limit order to sell at $110. The order will be placed in the market and when the price reaches $110 your order will be executed. If the price gaps at the open to $111, then you would end up selling for $111. In other words you will get a minimum of $110 per share. A stop limit order is where you put a stop loss order, which when it gets triggered, will place a limit order in the market for you. For example, you want to limit your losses by placing a stop loss order if the price drops to $90. If you chose a market order with your stop loss as soon as the price hits $90 your stop loss would be triggered and the shares would sell at the next available price, usually at $90, but could be less if the market gaps down past $90. If on the other hand you placed a limit order at $89.50 with your stop loss, when the stop loss order gets triggered at $90 your limit order will be placed into the market to sell at $89.50. So you would get a minimum of $89.50 per share, however, if the market gaps down below $89.50 your order will be placed onto the market but it won't sell, unless the price goes back to or above $89.50. Hope this helps. It really centers on the probability of your position falling to $0 and your level of comfort if that were to happen.  There are a plethora of situations that could cause an option contract to become worthless.  The application of leverage to a position also increases the risk. Zero risk would be an FDIC insured savings account, high risk would be buying options on margin, and there's a very wide grey area in between.  I agree that the whole process of assigning a risk level is dubious at best.  As you say, it seems using past data could help assign a risk level, look to beta values if you believe in that.  The problem here is the main disclaimer in use is that past performance cannot be relied upon for future gains. As an aside, if the US government files bankruptcy you'll have a whole host of more immediate problems than the value of your t-bills.  At that point dollars would have been a risky investment. "I am not familiar with this broker, but I believe this is what is going on: When entering combination orders (in this case the purchase of stocks and the writing of a call), it does not make sense to set a limit price on the two ""legs"" of the order separately. In that case it may be possible that one order gets executed, but the other not, for example. Instead you can specify the total amount you are willing to pay (net debit) or receive (net credit) per item. For this particular choice of a ""buy and write"" strategy, a net credit does not make sense as JoeTaxpayer has explained. Hence if you would choose this option, the order would never get executed. For some combinations of options it does make sense however. It is perhaps also good to see where the max gain numbers come from. In the first case, the gain would be maximal if the stock rises to the strike of the call or higher. In that case you would be payed out $2,50 * 100 = $250, but you have paid $1,41*100 for the combination, hence this leaves a profit of $109 (disregarding transaction fees). In the other case you would have been paid $1,41 for the position. Hence in that case the total profit would be ($1,41+$2,50)*100 = $391. But as said, such an order would not be executed. By the way, note that in your screenshot the bid is at 0, so writing a call would not earn you anything at all." I normally just do a buy limit at the price I want to buy it at. Then it executes when it's that price or lower, but there's still a chance you might purchase some shares at a larger price. But since we're small fry and using brokerages, there's not much we can do about it. "In real life, you'd see spreads like AMZN 04/13/2017 910.00 C 4.90 +1.67 Bid: 4.75 Ask: 5.20 (with AMZN @ $897 right now) and the fill you'd get on the buy side would be closer to the ask. i.e. I'd offer $5.00 and hope that it filled.  Filling a $4 bid when ask is $8 isn't likely unless the stock blipped down enough for your price to fill.  Options are a lot like day trading, in most cases. Most members here will agree that day trading isn't investing, it's gambling. Long term, the S&P has been up 10%/yr. But any given day, the noise of the market is a 50/50 zero sum game. Most long term stock 'investors' do well. Those who get in and out, not so much.  There are aspects to options that are appealing. As you've seen, the return can be high, even IRL, but your loss can be 100% as well. Let me share with you a blurred line - I wrote ""Betting on Apple at 9 to 2"" in which I described an option strategy that ran 2 years and would return $10,000 on a $2200 bet. A similar bet that ended a year ago yielded a 100% loss. I don't post there very often, as I keep that trading to a minimum.  There are warnings for those who want to start trading options -" "After learning about things that happened in the ""flash crash"" I always use limit orders. In an extremely rare instance if you place a market order when there is a some glitch, for example some large trader adds a zero at the end of their volume, you could get an awful price.  If I want to buy at the market price, I just set the limit about 1% above the market price. If I want to sell, I set the limit 1% below the market price. I should point out that your trade is not executed at the limit price. If your limit price on a buy order is higher than the lowest offer, you still get filled at the lowest offer. If before your order is submitted someone fills all offers up to your limit price, you will get your limit price. If someone, perhaps by accident, fills all orders up to twice your limit price, you won't end up making the purchase. I have executed many purchases this way and never been filled at my limit price." Not sure of the question here if by IPO(initial public offering) you mean private company then:  A company can invest its excess money into other companies, to earn returns.  Also a company that is private can attract private investment if the sector is doing well on publicly traded markets.  Finally a company can diversify away risk, by holding shares of a company that would benefit in the event of a disruption in their own industry.