How do brokers make money from margin accounts?
They will make money from brokerage as usual and also from the interest they charge you for lending you the money for you to buy your shares on margin. In other words you will be paying interest on the $30,000 you borrowed from your broker. Also, as per Chris's comment, if you are shorting securities through your margin account, your broker would charge you a fee for lending you the securities to short. "Your broker will charge you commissions and debit interest on your ""overdraft"" of $30,000. However it is very likely that your contract with the broker also contains a rehypothecation clause which allows your broker to use your assets. Typically, with a debt of $30,000, they would probably be entitled to use $45-60,000 of your stocks. In short, that means that they would be allowed to ""borrow"" the stocks you just bought from your account and either lend them to other clients or pledge them as collateral with a bank and receive interest. In both cases they will make money with your stocks. See for example clause #14 of this typical broker's client agreement. Applied to your example: In other words they will make $60 + $450 + $1,800 = $2,310 the first year. If the stock is expensive to borrow and they manage to lend it, they will make a lot more. There are by the way a few important consequences:"
"Price is current price per share, but you can buy fractional shares. Minimal investment is how later the first purchase of shares must be to make it worth their efforts to set up the account for you. How you manage it is up to you. You can buy or sell shares at any time, pretty much, though it may take a few days for the transaction to ""settle"" and take effect. You can do this via checks, or you can give the broker (or the investment house, if you are dealing directly with them as I do) permission to take money from or put money to your bank account when you tell them you want to buy or sell shares. You may be able to set up direct deposit; talk to your employer about that. Or you may be able to have your bank make a periodic transfer/purchase for you." "Probably the most significant difference is the Damocles Sword hanging over your head, the Margin Call. In a nutshell, the lender (your broker) is going to require you to have a certain amount of assets in your account relative to your outstanding loan balance. The minimum ratio of liquid funds in the account to the loan is regulated in the US at 50% for the initial margin and 25% for maintenance margins. So here's where it gets sticky. If this ratio gets on the wrong side of the limits, the broker will force you to either add more assets/cash to your account t or immediately liquidate some of your holdings to remedy the situation. Assuming you don't have any/enough cash to fix the problem it can effectively force you to sell while your investments are in the tank and lock in a big loss. In fact, most margin agreements give the brokerage the right to sell your investments without your express consent in these situations. In this situation you might not even have the chance to pick which stock they sell. Source: Investopedia article, ""The Dreaded Margin Call"" Here's an example from the article: Let's say you   purchase $20,000 worth of securities   by borrowing $10,000 from your   brokerage and paying $10,000 yourself.   If the market value of the securities   drops to $15,000, the equity in your   account falls to $5,000 ($15,000 -   $10,000 = $5,000). Assuming a   maintenance requirement of 25%, you   must have $3,750 in equity in your   account (25% of $15,000 = $3,750).   Thus, you're fine in this situation as   the $5,000 worth of equity in your   account is greater than the   maintenance margin of $3,750. But   let's assume the maintenance   requirement of your brokerage is 40%   instead of 25%. In this case, your   equity of $5,000 is less than the   maintenance margin of $6,000 (40% of   $15,000 = $6,000). As a result, the   brokerage may issue you a margin call. Read more: http://www.investopedia.com/university/margin/margin2.asp#ixzz1RUitwcYg" If you are restricting yourself to Scotiabank (Both retail banking and iTrade), your choices are pretty limited.  If you are exchanging more than CAD$25,000 to EUR without margin, you can call Scotiabank and ask for a quote with much lower spread than the published snapshots.  The closest ETF that you are talking about is RWE.B on TSX, which is First Asset MSCI Europe Low Risk Weighted ETF (Unhedged). You will be exposed to huge equity market risk and you should do it only if you intend to hold it for 3-5 years.  Another way of exchanging cash is without opening an account is through a currency exchange broker (search “toronto currency exchange” for relevant companies). First you send an email asking for a quote for the amount you wanted, then you send the CAD to them via cheque, and they would convert to EUR and deposit it to your EUR account at Scotiabank (retail banking). This method costs around 0.7% compared to 2.5% charged by Scotiabank. An example of these brokers is Interchange Currency Exchange in Toronto.  If you are hedging more than 125000 EUR, the proper method is to open an account that supports trading Currency Futures on Globex (US CME group). You can long Euro/Canadian Dollar Futures on margin.  The last method is to open an account at Interactive Brokers, put CAD in it, then borrow more CAD to buy EUR. This method costs a few dollars upon trading and the spread is negligible. You need to pay 2.25% per year margin interest through. It is a general truism but the reasons are that the rules change dramatically when you simply have more capital. Here are some examples, limited to particular kinds of markets: Under $2,000 in capital Nobody is going to offer you a margin account, and if you do get one it isn't with the best broker on commissions and other capabilities. So this means cash only trading, enjoy your 3 business day settlement periods. This means no shorting, confining a trader to only buy and hold strategies, making them more dependent on luck than a more capable trader. This means it is more expensive to buy stock, since you have to put down 100% of the cash to hold a share, whereas someone with more money puts down less capital to hold the exact same number of shares. This means no covered options strategies or spreads, again limiting the market directions where a trader could earn Under $25,000 in capital In the stock market, the pattern day trader rule applies to retail margin accounts with a balance under $25,000 and this severally limits the kinds of trades you are able to take because of the limit in the number of trades you can take in a given time period. Forget managing a multi-leg option position when the market isn't moving your direction. Under $125,000 in capital Worse margin rules. You excluded portfolio margin from your post, but it is a key part of the answer Over $1,000,000 in capital Participate in private placements, regulation D offerings reserved for accredited investors. These days, as buy and hold investments, these generally have more growth potential than publicly traded offerings. Over $5,000,000 in capital You can easily get the compliance and risk manager to turn the other way on margin rules. This is not conjecture, leverage up to infinity, try not to bankrupt yourself and the trading firm. "Your question indicates that you might have a little confusion about put options and/or leveraging.  There's no sense I'm aware of in which purchasing a put levers a position.  Purchasing a put will cost you money up front.  Leveraging typically means entering a transaction that gives you extra money now that you can use to buy other things.  If you meant to sell a put, that will make money up front but there is no possibility of making money later.  Best case scenario the put is not exercised.  The other use of the term ""leverage"" refers to purchasing an asset that, proportionally, goes up faster than the value of the underlying.  For example, a call option. If you purchase a put, you are buying downside protection, which is kind of the opposite of leverage.  Notice that for an American put you will most likely be better off selling the put when the price of the underlying falls than exercising it.  That way you make the money you would have made by exercising plus whatever optional value the put still contains.  That is true unless the time value of money is greater than the optional (insurance) value.  Since the time value of money is currently exceptionally low, this is unlikely.  Anyway, if you sell the option instead of exercising, you don't need to own any shares at all.  Even if you do exercise, you can just buy them on the market and sell right away so I wouldn't worry about what you happen to be holding. The rules for what you can trade with a cash instead of a margin account vary by broker, I think.  You can usually buy puts and calls in a cash account, but more advanced strategies, such as writing options, are prohibited.  Ask your broker or check their help pages to see what you have available to you." You have to call Interactive Brokers for this. This is what you should do, they might even have a web chat. These are very broker specific idiosyncrasies, because although margin rules are standardized to an extent, when they start charging you for interest and giving you margin until settlement may not be standardized. I mean, I can call them and tell you what they said for the 100 rep. Two more esoteric differences, related to the same cause... When you have an outstanding debit balance in a margin the broker may lend out your securities to short sellers.  (They may well be able to lend them out even if there's no debit balance -- check your account agreement and relevant regulations).   You'll never know this (there's no indication in your account of it) unless you ask, and maybe not even then. If the securities pay out dividends while lent out, you don't get the dividends (directly).  The dividends go to the person who bought them from the short-seller.  The short-seller has to pay the dividend amount to his broker who pays them to your broker who pays them to you.  If the dividends that were paid out by the security were qualified dividends (15% max rate) the qualified-ness goes to the person who bought the security from the short-seller.  What you received weren't dividends at all, but a payment-in-lieu of dividends and qualified dividend treatment isn't available for them.   Some (many?  all?) brokers will pay you a gross-up payment to compensate you for the extra tax you had to pay due to your qualified dividends on that security not actually being qualified. A similar thing happens if there's a shareholder vote.  If the stock was lent out on the record date to establish voting eligibility, the person eligible to vote is the person who bought them from the short-seller, not you.  So if for some reason you really want/need to vote in a shareholder vote, call your broker and ask them to journal the shares in question over to the cash side of your account before the record date for determining voting eligibility. Retail brokers and are generally not members of exchanges and would generally not be members of exchanges unless they are directly routing orders to those exchanges. Most retail brokers charging $7 are considered discount brokers and such brokers route order to Market Makers (who are members of the exchanges). All brokers and market makers must be members of FINRA and must pay FINRA registration and licensing fees.  Discount brokers also have operational costs which include the cost of their facilities, technology, clearing fees, regulation and human capital. Market makers will have the same costs but the cost of technology is probably much higher. Discount brokers will also have market data fees which they will have to pay to the exchanges for the right to show customer real time quotes.  Some of their fees can be offset through payment for order flow (POF) where market makers pay routing brokers a small fee for sending orders to them for execution. The practice of POF has actually allowed retail brokers to keep their costs lower but to to shrinking margins and spread market makers POF has significantly declined over the years.  Markets makers generally do not pass along Exchange access fees which are capped at $.003 (not .0035) to routing brokers.  Also note that The SEC and FINRA charges transactions fees. SEC fee for sales are generally passed along to customers and noted on trade confirms. FINRA TAF is born by the market makers and often subtracted from POF paid to routing firms. Other (full service brokers) charging higher commissions are charging for the added value of their brokers providing advice and expertise in helping investors with investment strategies. They will generally also have the same fees associated with membership of all the exchanges as they are also market makers subject to some of the list of cost mentioned above.  One point of note is that Market Making technology is quite sophisticates and very expensive.  It has driven most of wholesale market makers of the 90s into consolidation.    Retail routing firm's save a significant amount of money for not having to operate such a system (as well as worry about the regulatory headaches associated with running such a system).  This allows them to provide much lower commissions that the (full service) or bulge bracket brokers.