Why Demat/Stock Market Brokers don't support Credit Card Payin
"Most credit cards allow you to take ""cash advances"", but the fees and limits for cash advances are different than for regular purchases. You can buy stock after taking a cash advance from your credit card. When you make a cash advance, you normally pay the credit card company a fee. When you make a regular purchase, the merchant (ie, the stockbroker) pays a fee. Additionally, credit card companies can make merchants wait up to 3 months to actually receive the money, in case the transaction is disputed. Your stockbroker is unlikely to want to pay the fee, accept the delay in receiving the funds, and risking that you will dispute the transaction. Having said that, many FOREX brokers will accept credit card deposits (treated as purchases), although FOREX can be considerably riskier than the stock market. Of course, if you max out your credit cards and lose all your money, you can normally negotiate to pay back the debt for less than the original amount, especially since it's unsecured debt."
I can't speak for all brokerages but the one I use requires cash accounts to have cash available to purchase the stock in this situation. With the cash available you would be able to purchase the stock if the option was exercised.  Hope this helps "Forbes has an article investigating this. Here are the key parts: On line at the bottom of the list of funds there is an entire screen   of grey-faded micro print which includes this telling disclosure: TD Ameritrade receives remuneration from certain ETFs (exchange-traded     funds) that participate in the commission-free ETF program for     shareholder, administrative and/or other services. In other words, TD Ameritrade is now enforcing a pay-to-play for their   so-called commission-free exchange-traded funds. They are willing to   forego their $6.95 trading commission in favor of remuneration   directly from the ETF vendors. Because Vanguard refuses to pay such   money to custodians, they are no longer being allowed to play. and Joseph Giannone, a TD Ameritrade spokesman, was quoted as saying,   ""With any business decision, client needs are paramount, but the   underlying economics of programs can’t be ignored. ... In line with   industry practices, certain providers pay servicing, administrative or   other fees. Vanguard elected not to be a part of the new program."" So basically it sounds like Vanguard, and presumably iShares as well, were unwilling to pay TD Ameritrade to continue offering their ETFs commission-free." In most cases, the brand on the card, eg Visa or MasterCard, is a middleman. The company processes the transaction, transferring $xx from the bank to the seller, and telling the bank to debit the buyer's account. The bank is at risk, not the company transacting the purchase. What's interesting is that American Express started as both. My first Amex card, issued in 1979 (long expired, but in my box of memorabilia) had no bank. American Express offered a card that offered no extended credit, it was pay in full each month. Since then, Amex started offering extended credit, i.e. with annual interest, and minimum payments, and more recently, offering transaction processing for banks which take on the credit risk, essentially becoming very similar to MasterCard and Visa. You need 2 things One a Demat Account and second a Broker Account. If you need to trade online, then an agreement [Power of Attorney] between Your Saving Bank Account, the Demat Account and the Trading Account. So there are quite a few forms that need signature and proof of identify. Physical presence is required. "Presumably it means they're paying with normal money rather than paying with stock. Shareholders will receive money rather than any shares of AMZN when the deal goes through.   ""Cash"" doesn't necessarily mean ""currency"" a la bills and coins. When you have money in your brokerage that isn't tied up in a security, for example, you're holding ""cash"" even though you don't physically have ""currency""." There are numerous reasons that go beyond the immediate requirement for access to credit.  Many people just plain don't like carrying cash. Before electronic debit cards became mainstream about the only way to pay for online services was with a credit card.  This has now changed just about everywhere except a large number of airlines which still only sell online tickets via a credit card payment. And then there are all those countries where governments (and some banks) have decided to charge merchants more when customers use debit cards.  If you don't like carrying cash then you may find that the only card you can use is a credit card. These concerns are gradually disappearing and at some stage someone is likely to offer a combined debit-credit card. At which point you'll probably get credit whether you like it or not. I think George's answer explains fairly well why the brokerages don't allow this - it's not an exchange rule, it's just that the brokerage has to have the shares to lend, and normally those shares come from people's margin, which is impossible on a non-marginable stock. To address the question of what the alternatives are, on popular stocks like SIRI, a deep In-The-Money put is a fairly accurate emulation of an actual short interest.  If you look at the options on SIRI you will see that a $3 (or higher) put has a delta of -$1, which is the same delta as an actual short share. You also don't have to worry about problems like margin calls when buying options.  The only thing you have to worry about is the expiration date, which isn't generally a major issue if you're buying in-the-money options... unless you're very wrong about the direction of the stock, in which case you could lose everything, but that's always a risk with penny stocks no matter how you trade them. At least with a put option, the maximum amount you can lose is whatever you spent on the contract.  With a short sale, a bull rush on the stock could potentially wipe out your entire margin.  That's why, when betting on downward motion in a microcap or penny stock, I actually prefer to use options.  Just be aware that option contracts can generally only move in increments of $0.05, and that your brokerage will probably impose a bid-ask spread of up to $0.10, so the share price has to move down at least 10 cents (or 10% on a roughly $1 stock like SIRI) for you to just break even; definitely don't attempt to use this as a day-trading tool and go for longer expirations if you can. "Regarding ""Interest on idle cash"",  brokerage firms must maintain a segregated account on the brokerage firm's books to make sure that the client's money and the firm's money is not intermingled, and clients funds are not used for operational purposes. Source.   Thus, brokerage firms do not earn interest on cash that is held unused in client accounts. Regarding ""Exchanges pay firm for liquidity"", I am not aware of any circumstances under which an exchange will pay a brokerage any such fee.  In fact, the opposite is the case.  Exchanges charge participants to transact business. See : How the NYSE makes money Similarly, market makers do not pay a broker to transact business on their behalf.  They charge the broker a commission just like the broker charges their client a commission.  Of course, a large broker may also be acting as market maker or deal directly with the exchange, in which case no such commission will be incurred by the broker.  In any case, the broker will pay a commission to the clearing house." "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." I found this page at CNN Money, that lists 5 viable alternatives to Paypal, namely: I would suggest looking for unbiased sources like CNN rather than searching for alternatives and happening upon the merchant's sites themselves. Hope this helps! "My broker (thinkorswim) offers this from the platform's trade tab.  I believe this feature isn't crippled in the PaperMoney version which is effectively a ""free online service.""" Debit cards do not earn the bank any interest from you whereas credit cards do, so they want to give incentive to use credit over debit. Prop (proprietary) traders trade using huge amounts of a bank's money (i.e. other people's money) so the reason why they have such low commissions (and they certainly do) is that the firms for which they work negotiate low commissions as the quantities and volumes (as they also trade very frequently) will be high and so the total commission will be very high. There is no such thing as a prop trading account unless you are a big bank with a very large bank roll (tens of millions of USD) so you cannot open one to enjoy those benefits unless you have enough money that you can negotiate your commission with brokers. 25k CAD is definitely not enough money to even start a conversation about those sorts of commissions. note: prop traders are generally banned from trading intraday with their own money by their employers and the law as it is a massive conflict of interests. Those who do and get caught face lengthy prison sentences. Yes Absolutely! You will need to provide Sharekhan with a cancelled cheque from OBC which has your account number and name on it. They will link that to your DMAT account, and any settlements/dividends paid will directly be deposited into your OBC bank account.  Any time you need to deposit money into your DMAT account, you will need to provide Sharekhan with a checque from OBC and they will credit the amount and you can buy anything you like. Cheers. I learned most of this stuff from 3 textbooks in school probably totaling $900 between the 3. I imagine you don't want to spend the cash on that. I would suggest finding a source online. A lot of the surface level stuff you are looking for can be found online on websites like Investopedia. They are a great resource and are free usually.