vania-janet/multiturn-rag-retrieval-data huggingface dataset:
If you can't afford 100 shares, or for some reason still want to be in the business of creating synthetic options from pure stock limit orders, then you could maybe play around with setting your stock purchase bid price to (approximately): See your statistics book for how to set ndev -- 1 standard deviation gives you a 30% chance of a fill, 2 gives you a 5% chance, etc. Disclaimer: The above math probably has mistakes; do your own work. It's somewhat invalid anyway, because stock prices don't follow a normal curve, so standard deviations don't really mean a whole lot. This is where market makers earn their keep (or not). If you still want to create synthetic options using stock limit orders, you might be able to get the options market to do more of the math for you. Try setting your stock limit order bid equal to something like this: Where put_strike is the strike price of a put option for the equity you're trading. Which option expiration and strike you use for put_strike depends on your desired time horizon and desired fill probability. To get probability, you can look at the delta for a given option. The relationship between option delta and equity limit order probability of fill is approximately: Disclaimer: There may be math errors here. Again, do your own work. Also, while this method assumes option markets provide good estimates, see above disclaimer about the markets making mistakes.
a) Contracts are for future delivery of said underlying. So if you are trading CL (crude oil) futures and don't sell before delivery date, you will be contacted about where you want the oil to be delivered (a warehouse presumably). 1 contract is the equivalent of 1000 barrels. b) 600 contracts depends entirely on what you are trading and how you are trading. If you are trading ES (S&P 500 e-Mini), you can do the 600 contracts in less than a second. c) No fees does not make particular sense. It's entirely possible that you are not trading anything, it's just a fake platform so they can judge your performance. d) The catch typically is that when it's time to pay you, they will avoid you or worst case, disappear. e) Trading is a full-time job, especially for the first 4-5 years when you're only learning the basics. Remember, in futures trading you are trading against all the other professionals who do only this 24/7 for decades. If you are only risking your time with the reward being learning and possibly money, it seems like a good deal. There's typically a catch with these things - like you would have to pay for your data which is very expensive or withdrawing funds is possible only months later.
I'm not an expert on HFT. But order cancellation is not an indicator of front running...  Let's say you are willing to post 1000 shares at 25.00. Someone jumps in and takes 500. From past trading analysis you know that this is indicative of a larger order - say because of the speed of the execution you expect another 10000 shares to follow. This will push up the price because the demand curve has changed. If you leave your remaining 500 shares listed at 25, they will be lifted and the price will move up to, say, 25.25. This is not shady order cancellation- this is rational response to new information about demand for the stock, and not wanting to get screwed for selling at a lower price than equilibrium.   Or (I think this is a valid example but again not an expert here) say you are willing to sell 100 shares. You don't know where the buys will be routed so you post your 100 on multiple platforms. When one gets lifted you cancel the others.  Frankly the best argument against HFT is the billions of dollars being poured into infrastructure of questionable economic utility,  or at the very least diminishing marginal utility. But all this front running nonsense is just that.
There are lots of reasons for the differences in price. Can you go to (a) bank, (b) forex bureau and (c) central bank and post back both bid and offer prices at a given time so we can consider the spread? What you've said above for (a) and (b) are presumably USDGHS offer prices, because they are higher than the (c) central bank price. If a bank or bureau bid price was higher than the central bank offer price then you could buy GHS from the central bank and then sell them to a bureau for a higher price, an almost no risk arbitrage, other than the armoured car to deliver the funds from central bank to bureau. What you've posted is: (a) a bank will sell you 1 USD for 3.4 GHS (b) a bureau will sell you 1 USD for 3.7 GHS (c) we can see the bid/offer for central bank is 3.1949/3.1975 which means the central bank, if you have an account, will sell you 1 USD for 3.1975 GHS. You clearly want to buy USD from the central bank, then the bank, then the bureau. Anyway, the reason for these differences is all to do with liquidity conditions in the local areas, the customer types, and the frequency of orders versus inventory... Think about it. The central bank has the most frequency of orders and the biggest customers so it offers the lower price, then the bank, and then the bureau. I think the bureau is the worst price there... You have to explain further :)
"All margin is marked to market. Option longs do not post margin because long margin trading is forbidden. Equity longs must post margin if cash is borrowed to fund the purchase. Shorts of all kinds must post margin, and the rates are generally the same: a few standard deviations away from the mean daily change of the underlying. A currency futures trader, because of the involatility of most major monies, can get away with a few percentage points.  Commodities can get to around 10%.  Single equities are frequently around 20%, while indices can get back down to 10%. A future is a special case because both sides are technically short and long at the same time.  The easiest example to perceive is a currency future.  Which one is the buyer and which is the seller?  Both and neither. Contracts may be denominated for one side as the seller and the other the buyer, but contractually, legally, and effectively, both are liable to the other, and both must take delivery.  For non-currency assets, it only appears as if the cash seller is the buyer because cash is not considered an asset in the same way all other assets are, but the ""long"" is obligated to sell cash and buy the ""asset""."
"This question was asked over at wilmott.com which is a site for quantitative analysts. Some of the finest minds in the business (I am serious here) pondered the question. the best answer was along the lines of: ""A Gambler generally gambles their own money, a derivatives trader gambles using someone else's"".  There is an important legal difference is that a gambling dept is normally considered a ""debt of honor"", that is not enforceable in a court of law whilst a derivatives contract is considered legally binding. This last bit gets a bit interesting under some jurisdictions because only derivatives contracts involving the delivery of something physical are enforceable, whilst contracts involving settlement with financial instruments are not, so a stock index future would not be recognized."
In order to see whether you can buy or sell some given quantity of a stock at the current bid price, you need a counterparty (a buyer) who is willing to buy the number of stocks you are wishing to offload. To see whether such a counterparty exists, you can look at the stock's order book, or level two feed. The order book shows all the people who have placed buy or sell orders, the price they are willing to pay, and the quantity they demand at that price. Here is the order book from earlier this morning for the British pharmaceutical company, GlaxoSmithKline PLC. Let's start by looking at the left-hand blue part of the book, beneath the yellow strip. This is called the Buy side. The book is sorted with the highest price at the top, because this is the best price that a seller can presently obtain. If several buyers bid at the same price, then the oldest entry on the book takes precedence. You can see we have five buyers each willing to pay 1543.0 p (that's 1543 British pence, or £15.43) per share. Therefore the current bid price for this instrument is 1543.0. The first buyer wants 175 shares, the next, 300, and so on. The total volume that is demanded at 1543.0p is 2435 shares. This information is summarized on the yellow strip: 5 buyers, total volume of 2435, at 1543.0. These are all buyers who want to buy right now and the exchange will make the trade happen immediately if you put in a sell order for 1543.0 p or less. If you want to sell 2435 shares or fewer, you are good to go. The important thing to note is that once you sell these bidders a total of 2435 shares, then their orders are fulfilled and they will be removed from the order book. At this point, the next bidder is promoted up the book; but his price is 1542.5, 0.5 p lower than before. Absent any further changes to the order book, the bid price will decrease to 1542.5 p. This makes sense because you are selling a lot of shares so you'd expect the market price to be depressed.
Context is key here. Futures don't really have to do with a time in the future in this context.  Futures are a capital market (futures market), just like Stocks are a market (stock market). Both capital markets have the ability to affect each other. Up until 30 years ago there was a separate use for the futures market, but in the days since they are MOSTLY used for stock derivatives (financial futures are the most widely traded contracts since 1980, hugely eclipsing the commodity futures that the market was designed for.)  So there is overlap and one affect the other, I'm not going to go into too much detail here but basically the futures market trades 24 hours a day, 6.5 days of the week and the  stock market trades 8-12 hours a day, 5 days a week.  So when the stock market closes, the futures market is still running will react and effect the broad stock market.  Hope that gets you started in your research
Stock trades are always between real buyers and real sellers. In thinly-traded small stocks, for example, you may not always be able to find a buyer when you want to sell. For most public companies, there is enough volume that individual investors can just about always fill their market orders.
It is possible to figure out the next price. Just not for Joe Average. A stock exchange has a orderbook. This has two sides. One side has alle the buyers, how many shares they want, and what they are willing to pay. The other side has all the sellers, how many shares they got, and what price they are willing to accept. If any buyers and sellers match up, their orders are executed, money and shares are exchanged, everyone is happy. So the current asking price (the price you have to pay, to get some shares) is currently 12.46$. Let's say you want 6000 shares, for any price. The orderbook now looks like this: Your order is executed, you get 6000 shares for a total of 74,761$ (5900 * 12,46 + 100 * 12,47$). The order book now looks like this: The new asking price is 12.47$. Congrats, you knew the price in advance. Of course this is simplified, there are millions of entries on both sides, thousands of trades happen every millisecond and you'll have to pay the stock exchange a lot of money to give you all this information in real time.  That's what high frequency traders are doing. They use highly specialised computer systems to exploit differences in stock exchanges all over the world. It's called arbitage. They have to be faster than the other guy. This race has gone on for a few years now, so that the limiting factor starts to become the speed of light. YOU are not going to benefit, or else you would not be asking questions on PERSONAL finance :)
The principle of demand-supply law will not work if spoofing (or layering, fake order) is implemented. However, spoofing stocks is an illegal criminal practice  monitored by SEC. In stock market, aggressive buyer are willing to pay for a higher ask price pushing the price higher even if ask size is considerably larger than bid size, especially when high growth potential with time is expected. Larger bids may attract more buyers, further perpetuating a price increase (positive pile-on effect). Aggressive sellers are willing to accept a lower bid price pushing the price lower even if ask size is considerably smaller than bid size, when a negative situation is expected. Larger asks may attract more sellers, further perpetuating a price fall (negative pile-on effect).  Moreover, seller and buyers considers not only price but also size of shares in their decision-making process, along with marker order and/or limit order. Unlike limit order, market order is not recorded in bid/ask size. Market order, but not limit order, immediately affects the price direction. Thus, ask/bid sizes alone do not give enough information on price direction. If stocks are being sold continuously at the bid price, this could be the beginning of a downward trend; if stocks are being sold continuously at the ask price, this could be the beginning of a upward trend.  This is because ask price is always higher than bid price. In all the cases, both buyers and sellers hope to make a profit in a long-term and short-term view
"If you read the first sentence of the article, you'll notice that the orders were placed, then canceled.  The only reason this is done is to front run real incoming orders and get in.    ""Translation: the ultimate goal of many of these programs is to gum up the system so it slows down the quote feed to others and allows the computer traders (with their co-located servers at the exchanges) to gain a money-making arbitrage opportunity.""  If you are an investor without access to floor space within 3 meters of the exchange computer to place a computer of your own, you are being  defrauded of the true market price by this machine."
"In the US there is only one stock market (ignoring penny stocks) and handfuls of different exchanges behind it.  NYSE and NASDAQ are two different exchanges, but all the products you can buy on one can also be bought on the other; i.e. they are all the same market.  So a US equities broker cannot possibly restrict access to any ""markets"" in the US because there is only one. (Interestingly, it is commonplace for US equity brokers to cheat their customers by using only exchanges where they -- the brokers -- get the best deals, even if it means your order is not executed as quickly or cheaply as possible.  This is called payment for order flow and unfortunately will probably take an Act of Congress to stop.) Some very large brokers will have trading access to popular equity markets in other countries (Toronto Stock Exchange, Mexico Stock Exchange, London Stock Exchange) and can support your trades there.  However, at many brokers or in less popular foreign markets this is usually not the case; to trade in the average foreign country you typically must open an account with a broker in that country."
Depending on your broker, you can buy these stocks directly at the most liquid local exchanges. For instance, if you are US resident and want to to buy German stocks (like RWE) you can trade these stocks over InteractiveBrokers (or other direct brokers in the US). They offer direct access to German Xetra and other local markets.
There are some brokers in the US who would be happy to open an account for non-US residents, allowing you to trade stocks at NYSE and other US Exchanges. Some of them, along with some facts: DriveWealth Has support in Portuguese Website TD Ameritrade Has support in Portuguese Website Interactive Brokers Account opening is not that straightforward Website
It doesn't matter which exchange a share was purchased through (or if it was even purchased on an exchange at all--physical share certificates can be bought and sold outside of any exchange). A share is a share, and any share available for purchase in New York is available to be purchased in London. Buying all of a company's stock is not something that can generally be done through the stock market. The practical way to accomplish buying a company out is to purchase a controlling interest, or enough shares to have enough votes to bind the board to a specific course of action. Then vote to sell all outstanding shares to another company at a particular fixed price per share. Market capitalization is an inaccurate measure of the size of a company in the first place, but if you want to quantify it, you can take the number of outstanding shares (anywhere and everywhere) and multiply them by the price on any of the exchanges that sell it. That will give you the market capitalization in the currency that is used by whatever exchange you chose.
First thing to consider is that getting your hands on an IPO is very difficult unless you have some serious clout. This might help a bit in that department (http://www.sec.gov/answers/ipoelig.htm) However, assuming you accept all that risk and requirements, YES - you can buy stocks of any kind in the US even if you are a foreigner. There are no laws prohibiting investment/buying in the US stock market. What you need is to get an online trading account from a registered brokerage house in the US. Once you are registered, you can buy whatever that is offered.
You can use interactive brokers. It allows you to have a single account to trade stocks and currencies from several countries.
Interactive Brokers offers many foreign markets (19 countries) for US based investors. You can trade all these local markets within one universal account which is very convenient in my view. IB offering
"Yes and no.  There are two primary ways to do this.  The first is known as ""cross listing"". Basically, this means that shares are listed in the home country are the primary shares, but are also traded on secondary markets using mechanisms like ADRs or Globally Registered Shares. Examples of this method include Vodafone and Research in Motion. The second is ""dual listing"". This is when two corporations that function as a single business are listed in multiple places. Examples of this include Royal Dutch Shell and Unilever. Usually companies choose this method for tax purposes when they merge or acquire an international company. Generally speaking, you can safely buy shares in whichever market makes sense to you."
Take a look at Everbank. They offer CDs and Money Market Accounts denominated in Euros for US residents.  https://www.everbank.com/personal/foreign-currencies.aspx
Maybe tell them you also have projects you're bidding in the US and to link you up with the highest volume distributors in US?  Then buy in US and import yourself? Don't tell the us distributors your plan because they wouldn't want to step on toes of other distributors.
If a company's shares trade in multiple exchanges, the prices in every exchange are very near to each other, otherwise you could earn money by doing arbitrage deals (buying in one, selling in the other) - and people do that once it becomes worth it. Which stock exchange you use is more a convenience for the buyer/seller - many investment banks offer only something local/near, and you have to go to specific investment banks to use other exchanges. For example, in Germany, it is easy to deal in Frankfurt, but if you want to trade at the the NASDAQ, you have to run around and find a bank that offers it, and you probably have to pay extra for it. In the USA, most investment banks offer NASDAQ, but if you want to trade in Frankfurt, you will have run around for an international company that offers that. As a stock owner/buyer, you can sell/buy your shares on any stock exchange where the company is listed (again, assuming your investment broker supports it). So you can buy in Frankfurt and sell in Tokyo seconds later, as nothing needs to be physically moved. Companies that are listed in multiple stock exchangs are typically large, and offer this to make trading their shares easier for a larger part of the world. Considering your 'theoretical buy all shares' - the shares are not located in the exchanges, they are in the hands of the owners, and not all are for sale, for various reasons. The owners decide if and when they want them offered for sale, and they also decide which stock exchange they offer them on; so you would need to go to all exchanges to buy them all. However, if you raise your offer price in one exchange only slightly, someone will see the arbitrage and buy them in the other locations and offer them to you in your stock exchange; in other words, for a small fee the shares will come to you. But again, most shares are typically not for sale. It's the same as trying to buy all Chevy Tahoes - even if you had the money, most owners wouldn't know or care about you. You would have to go around and contact every single one and convince them to sell.
Here is the solution: any money made inside the United States will be taxed under US tax law.  You want to do business here, open up a US headquarters that handles all the sales tracking and reporting. No tax dollars, no operations inside the US.   The united states carries such bulk buying power that companies will be forced to abide by its rules.
You will likely need to open an account in another EU country, like a broker operating out of France, Britain or Germany, to get the best options.  If you are comfortable using an english language site and interface, I highly recommend Interactive Brokers as they let you trade in many markets simultaneously, have simple currency conversion, and great tools.  But, they are geared toward active traders so you might be better with a more retail oriented broker if you are new to trading stocks. There are many options.  Here is a list to start with:
Quite a few stock broker in India offer to trade in US markets via tie-up brokers in US. As an Indian citizen, there are limits as to how much FX you can buy, generally very large, should be an issue. The profits will be taxed in US as well as India [you can claim relief under DTAA]
While most all Canadian brokers allow us access to all the US stocks, the reverse is not true.  But some US brokers DO allow trading on foreign exchanges. (e.g. Interactive Brokers at which I have an account).  You have to look and be prepared to switch brokers.  Americans cannot use Canadian brokers (and vice versa). Trading of shares happens where-ever two people get together - hence the pink sheets.  These work well for Americans who want to buy-sell foreign stocks using USD without the hassle of FX conversions.  You get the same economic exposure as if the actual stock were bought.   But the exchanges are barely policed, and liquidity can dry up, and FX moves are not necessarily arbitraged away by 'the market'.  You don't have the same safety as ADRs because there is no bank holding any stash of 'actual' stocks to backstop those traded on the pink sheets.
It looks like your best option is to go with an online broker. There are many available. Some of them won't let you open an account online as a foreign national but will allow you to open one through the mail. See more about that http://finance.zacks.com/can-nonus-citizen-trade-us-stocks-9654.html Also keep in mind that you will need to pay taxes on any capital gains made through selling http://www.irs.gov/pub/irs-pdf/p519.pdf
As other people have said they should register with a broker in the country they reside in that can deal in US stocks, then fill out a W8-BEN form. I have personally done this as I am from the Uk, it's not a very complicated process. I would assume that most US brokers don't allow foreign customers due to the person having to pay tax where they reside and the US brokers don't want to have to keep approximately 200 different tax codes in track.