No transaction fee ETF trades - what's the catch?
"Banks often offer cash to people who open savings accounts in order to drive new business. Their gain is pretty much as you think, to grow their asset base. A survey released in 2008 by UK-based Age Concern declared that only 16% of the British population have ever switched their banks‚ while 45% of marriages now end in divorce.  Yip, till death do most part. In the US, similar analysis is pointing to a decline in people moving banks from the typical rate of 15% annually. If people are unwilling to change banks then how much more difficult for online brokers to get customers to switch? TD Ameritrade is offering you 30 days commission-free and some cash (0.2% - 0.4% depending on the funds you invest).  Most people - especially those who use the opportunity to buy and hold - won't make much money for them, but it only takes a few more aggressive traders for them to gain overall. For financial institutions the question is straightforward: how much must they pay you to overcome your switching cost of changing institutions?  If that number is sufficiently smaller than what they feel they can make in profits on having your business then they will pay. EDIT TO ELABORATE: The mechanism by which any financial institution makes money by offering cash to customers is essentially one of the ""law of large numbers"".  If all you did is transfer in, say, $100,000, buy an ETF within the 30-day window (or any of the ongoing commission-free ones) and hold, then sell after a few years, they will probably lose money on you.  I imagine they expect that on a large number of people taking advantage of this offer.   Credit card companies are no different.  More than half of people pay their monthly credit balance without incurring any interest charges. They get 30 days of credit for free.  Everyone else makes the company a fortune. TD Ameritrade's fees are quite comprehensive outside of this special offer.  Besides transactional commissions, their value-added services include subscription fees, administration fees, transaction fees, a few extra-special value-added services and, then, when you wish to cash out and realise your returns, an outbound transfer fee. However, you're a captured market.  Since most people won't change their online brokers any more often than they'd change their bank, TD Ameritrade will be looking to offer you all sorts of new services and take commission on all of it. At most they spend $500-$600 to get you as a customer, or, to get you to transfer a lot more cash into their funds.  And they get to keep you for how long?  Ten years, maybe more?  You think they might be able to sell you a few big-ticket items in the interim? Maybe interest you in some subscription service? This isn't grocery shopping.  They can afford to think long-term." "AFAIK, It's also possible that the ETF company is paying Ameritrade for every trade you make. Even if your brokerage doesn't make you pay a fee to trade ETFs, the company that created and runs the ETF is still making money when you purchase and use their ETFs. See ""What motivates each player?"" at Yahoo Finance." what is the mechanism by which they   make money on the funds that I have in   my account? Risk drives TD Ameritrade to look for profits, Turukawa's storytelling about 100,000$ and 500$ is trivial. The risk consists of credit risk, asset-liability risk and profit risk. The third, based on Pareto Principle, explains the loss-harvesting. The pareto distribution is used in all kind of decentralized systems such as Web, business and -- if I am not totally wrong -- the profit risk is a thing that some authorities require firms to investigate, hopefully someone could explain you more about it. You can visualize the distribution with rpareto(n, shape, scale) in R Statistics -program (free). Wikipedia's a bit populist description: In the financial services industry,   this concept is known as profit risk,   where 20% or fewer of a company's   customers are generating positive   income while 80% or more are costing   the company money. Read more about it here and about the risk here.
Don't start by investing in a few individual companies. This is risky. Want an example? I'm thinking of a big company, say $120 billion or so, a household name, and good consistent dividends to boot. They were doing fairly well, and were generally busy trying to convince people that they were looking to the future with new environmentally friendly technologies. Then... they went and spilled a bunch of oil into the Gulf of Mexico. Yes, it wasn't a pretty picture if BP was one of five companies in your portfolio that day. Things would look a lot better if they were one of 500 or 5000 companies, though. So. First, aim for diversification via mutual funds or ETFs. (I personally think you should probably start with the mutual funds: you avoid trading fees, for one thing. It's also easier to fit medium-sized dollar amounts into funds than into ETFs, even if you do get fee-free ETF trading. ETFs can get you better expense ratios, but the less money you have invested the less important that is.) Once you have a decent-sized portfolio - tens of thousands of dollars or so - then you can begin to consider holding stocks of individual companies. Take note of fees, including trading fees / commissions. If you buy $2000 worth of stock and pay a $20 commission you're already down 1%. If you're holding a mutual fund or ETF, look at the expense ratio. The annualized real return on the stock market is about 4%. (A real return is after adjusting for inflation.) If your fee is 1%, that's about a quarter of your earnings, which is huge. And while it's easy for a mutual fund to outperform the market by 1% from time to time, it's really really hard to do it consistently. Once you're looking at individual companies, you should do a lot of obnoxious boring stupid research and don't just buy the stock on the strength of its brand name. You'll be interested in a couple of metrics. The main one is probably the P/E ratio (price/earnings). If you take the inverse of this, you'll get the rate at which your investment is making you money (e.g. a P/E of 20 is 5%, a P/E of 10 is 10%). All else being equal, a lower P/E is a good thing: it means that you're buying the company's income really cheap. However, all else is seldom equal: if a stock is going for really cheap, it's usually because investors don't think that it's got much of a future. Earnings are not always consistent. There are a lot of other measures, like beta (correlation to the market overall: riskier volatile stocks have higher numbers), gross margins, price to unleveraged free cash flow, and stuff like that. Again, do the boring research, otherwise you're just playing games with your money. This depends on a lot actually - with the overall being your goals and how much you like risk.   Question: What are your fees/commissions for selling? $8.95/trade will wipe out some gains on those trades. (.69% if all are sold with $8.95 commission - not including the commission payed when purchased that should be factored into the cost basis) Also, I would recommend doing commission free ETFs.  You can get the same affect as a mutual fund without the fees associated with paying someone to invest in ETFs and stocks. On another note: Your portfolio looks rather risky.  Although everyone has their own risk preference so this might be yours but if you are thinking about a mutual fund instead of individual stocks you probably are risk averse. I would suggest consulting with an adviser on how to set up for the future.  Financial advice is free flowing from your local barber, dentist, and of course StackExchange but I would look towards a professional. Disclaimer: These are my thoughts and opinions only ;) Feel free to add comments below. What decision are you trying to make?  Are you interested day trading stocks to make it rich? Or are you looking at your investment options and trying to decide between an actively managed mutual fund and an ETF? If the former, then precise statistics are hard to come by, but I believe that 99% of day traders would do better investing in an ETF. If the latter, then there are lots of studies that show that most actively managed funds do worse than index funds, so with most actively managed funds you are paying higher fees for worse performance.  Here is a quote from the Bogleheads Guide to Investing: Index funds outperform approximately 80 percent of all actively   managed funds over long periods of time. They do so for one simple   reason: rock-bottom costs. In a random market, we don't know what   future returns will be. However, we do know that an investor who keeps   his or her costs low will earn a higher return than one who does not.   That's the indexer's edge. Many people believe that your best option for investing is a diverse portfolio of ETFs, like this.  This is what I do. In addition to the higher risk as pointed out by @JamesRoth, you also need to consider that there are regulations against 'naked shorting' so you generally need to either own the security, or have someone that is willing to 'loan' the security to you in order to sell short.  If you own a stock you are shorting, the IRS could view the transaction as a Sell followed by a buy taking place in a less than 30 day period and you could be subject to wash-sale rules.  This added complexity (most often the finding of someone to loan you the security you are shorting) is another reason such trades are considered more advanced. You should also be aware that there are currently a number of proposals to re-instate the 'uptick rule' or some circuit-breaker variant. Designed to prevent short-sellers from driving down the price of a stock (and conducting 'bear raids etc) the first requires that a stock trade at the same or higher price as prior trades before you can submit a short.  In the latter shorting would be prohibited after a stock price had fallen a given percentage in a given amount of time.  In either case, should such a rule be (re)established then you could face limitations attempting to execute a short which you would not need to worry about doing simple buys or sells.   As to vehicles that would do this kind of thing (if you are convinced we are in a bear market and willing to take the risk) there are a number of ETF's classified as 'Inverse Exchange Traded Funds (ETF's) for a variety of markets that via various means seek to deliver a return similar to that of 'shorting the market' in question.  One such example for a common broad market is ticker SH the ProShares Short S&P500 ETF, which seeks to deliver a return that is the inverse of the S&P500 (and as would be predicted based on the roughly +15% performance of the S&P500 over the last 12 months, SH is down roughly -15% over the same period).  The Wikipedia article on inverse ETF's lists a number of other such funds covering various markets.   I think it should be noted that using such a vehicle is a pretty 'aggressive bet' to take in reaction to the belief that a bear market is imminent.  A more conservative approach would be to simply take money out of the market and place it in something like CD's or Treasury instruments.  In that case, you preserve your capital, regardless of what happens in the market. Using an inverse ETF OTOH means that if the market went bull instead of bear, you would lose money instead of merely holding your position. "ETFs are well suited to day trading, but you should be mindful of the bid-ask spread. See article: Commission-free ETFs are a great way to save money, but watch the bid-ask spread too. Bid-ask spread is largely a function of liquidity, or the volume of   buyers and sellers for an asset during a particular moment in time.   ... It may be more difficult to trade certain assets that are less   liquid, where bid-ask spreads can be higher. Think some penny stocks. If you have the choice, compare the spreads of the ETF and the target stock. Longer-term ""keep & hold"" trading on ETFs tracking futures can be somewhat disadvantageous.  Futures contracts roll-over every month.  Exchange traders have to sell and buy in on the next contract.  ETFs don't reflect the price differential between the futures contract. See here for more detail on that: Positioning For An Oil ETF Rebound? Watch For Contango Contango occurs when the price on a futures contract is higher than   the expected future spot price, which creates the upward sloping curve   on future commodity prices over time. Essentially, the phenomenon   reflects a current spot price that is lower than the futures price.   ... While this phenomena is a normal occurrence in the futures market,   contango can have a negative effect on ETFs." Like Ganesh, I've used XE Trade - however I still do, fairly often.  I have never had a single problem with them regardless of the method I used to move money -- Draft, Wire, ACH, bill payment through online banking, etc. The type of trade I do most often is online bill payment to ACH -- i.e. I pay through my banking site and they pay through ACH.  There's no fee and it takes 2 business days to go through.  I do mainly CAD to USD conversions and I lose about 1.25 cents on the rate -- for example, if the CAD is worth 95 cents US, converting $100 CAD would get me $92.75 USD.  The banks usually take 2.5% or so, so it's 50% savings. It was free and pretty simple to sign up, all online -- and besides the standard info all they required was for me to upload a scan of a bank statement. As for an API, I have no idea if they have one. "The issues of trading with unsettled funds are usually restricted to cash accounts.  With margin, I've never personally heard of a rule that will catch you in this scenario.  You won't be able to withdraw funds that are tied up in unsettled positions until the positions settle.  You should be able to trade those funds.  I've never heard of a broker charging margin interest on unsettled funds, but that doesn't mean there isn't a broker somewhere that does. Brokers are allowed to impose their own restrictions, however, since margin is basically offering you a line of credit.  You should check to see if your broker has more restrictive rules. I'd guess that you may have heard about restrictions that apply to cash accounts and think they may also apply to margin accounts.  If that's the case and you want to learn more about the rules generally, try searching for these terms: You should be able to find a lot of clear resources on those terms.  Here's one that's current and provides examples: https://www.fidelity.com/learning-center/trading-investing/trading/avoiding-cash-trading-violations On a margin account you avoid these issue because the margin (essentially a loan from your broker) provides a cushion / additional funds that avoid the issues.  It is possible that if you over-extend yourself that you'll get a ""margin call,"" but that seems to be different than what you're asking and maybe worth a new question if you want to know about that." The Creation/Redemption mechanism is how shares of an ETF are created or redeemed as needed and thus is where there can be differences in what the value of the holdings can be versus the trading price. If the ETF is thinly traded, then the difference could be big as more volume would be where the mechanism could kick in as generally there are blocks required so the mechanism usually created or redeemed in lots of 50,000 shares I believe. From the link where AP=Authorized Participant: With ETFs, APs do most of the buying and selling. When APs sense   demand for additional shares of an ETF—which manifests itself when the   ETF share price trades at a premium to its NAV—they go into the market   and create new shares. When the APs sense demand from investors   looking to redeem—which manifests itself when the ETF share price   trades at a discount—they process redemptions. So, suppose the NAV of the ETF is $20/share and the trading price is $30/share. The AP can buy the underlying securities for $20/share in a bulk order that equates to 50,000 shares of the ETF and exchange the underlying shares for new shares in the ETF. Then the AP can turn around and sell those new ETF shares for $30/share and pocket the gain. If you switch the prices around, the AP would then take the ETF shares and exchange them for the underlying securities in the same way and make a profit on the difference. SEC also notes this same process.