Are spot market ,regular market and ready market same in stock trading if not then what is the difference?
"So, the term ""ready market"" simply means that a market exists in which there are legitimate buy/sell offers, meaning there are investors willing to own or trade in the security. A ""spot market"" means that the security/commodity is being delivered immediately, rather at some predetermined date in the future (hence the term ""futures market"").  So if you buy oil on the spot market, you'd better be prepared to take immediate delivery, where as when you buy a futures contract, the transaction doesn't happen until some later date.  The advantage for futures contract sellers is the ability to lock in the price of what they're selling as a hedge against the possibility of a price drop between now and when they can/will deliver the commodity.  In other words, a farmer can pre-sell his grain at a set price for some future delivery date so he can know what he's going to get regardless of the price of grain at the time he delivers it.  The downside to the farmer is that if grain prices rise higher than what he sold them for as futures contracts then he loses that additional money.  That's the advantage to the buyer, who expects the price to rise so he can resell what he bought from the farmer at a profit. When you trade on margin, you're basically borrowing the money to make a trade, whether you're trading long (buying) or short (selling) on a security.  It isn't uncommon for traders to pledge securities they already own as collateral for a margin account, and if they are unable to cover a margin call then those securities can be liquidated or confiscated to satisfy the debt.  There still may even be a balance due after such a liquidation if the pledged securities don't cover the margin call. Most of the time you pay a fee (or interest rate) on whatever you borrow on margin, just like taking out a bank loan, so if you're going to trade on margin, you have to include those costs in your calculations as to what you need to earn from your investment to make a profit. When I short trade, I'm selling something I don't own in the expectation I can buy it back later at a lower price and keep the difference.  For instance, if I think Apple shares are going to take a steep drop at some point soon, I can short them.  So imagine I short-sell 1000 shares of AAPL at the current price of $112.  That means my brokerage account is credited with the proceeds of the sale ($112,000), and I now owe my broker 1000 shares of AAPL stock.  If the stock drops to $100 and I ""cover my short"" (buy the shares back to repay the 1000 I borrowed) then I pay $100,000 for them and give them to my broker.  I keep the difference ($12,000) between what I sold them for and what I paid to buy them back, minus any brokerage fees and fees the broker may charge me for short-selling. In conclusion, a margin trade is using someone else's money to make a trade, whether it's to buy more or to sell short.  A short trade is selling shares I don't even own because I think I can make money in the process. I hope this helps."
"The price of the last trade... Is the price of the last trade. It indicates what one particular buyer and seller agreed upon. There is absolutely no requirement that one of them didn't offer too much or demand too little, so this is nearly meaningless as an indication of what anyone else will be willing to offer or demand. An average of trades across a sufficiently large number of transactions might indicate a rough consensus about the value of a stock, but transactions will be clustered around that average and the average itself moves over time. Either you offer to sell or buy at a particular price, wait for that price, and risk the transaction not taking place at all if nobody agrees, or you do a spot transaction and get the best price at that nanosecond (which may not be the best in the next nanosecond). Or you tell the broker what the limits are that you consider acceptable, trading these risks off against each other. Pick the one which comes closest to your intent and ignore the fact that others may be getting a slightly different price. That's just the way the market works. ""If his price is lower, why didn't you buy it there?"" ""He's out of stock."" ""Well, come back when I'm out of stock and I'll be unable to sell it to you for an even better price!""" "Nobody has mentioned the futures market yet. Although the stock market closes at 4pm, the futures market continues trading 24 hours a day and 5.5 days a week. Amongst the products that trade in the future market are stock index futures.  That includes the Dow Jones, the S&P 500. These are weighted averages of stocks and their sectors. You would think that the price of the underlying stock dictates the price of the average, but in this day and age, the derivative actually changes the value of the underlying stock due to a very complex combination of hedging practices. (this isn't meant to be vague and mysterious, it is ""delta hedging"") So normal market fluctuations coupled with macroeconomic events affect the futures market, which can ripple down to individual stocks. Very popular stocks with large market caps will most certainly be affected by futures market trading. But it is also worth mentioning that futures can function completely independently of a ""spot"" price. This is where things start to get complicated and long winded. The futures market factor is worth mentioning because it extends even outside of the aftermarket and pre-market hours of stock trading." I stumbled on the same discrepancy, and was puzzled by a significant difference between the two prices on ETR and FRA. For example, today is Sunday, and google shows the following closing prices for DAI. FRA:DAI: ETR:DAI: So it looks like there are indeed two different exchanges trading at different prices.  Now, the important value here, is the last column (Volume). According to Wikipedia, the trading on Frankfort Stock Exchange is done today exclusively via Xetra platform, thus the volume on ETR:DAI is much more important than on FRA:DAI.  Obviously, they Wikipedia is not 100% accurate, i.e. not all trading is done electronically via Xetra. According to their web-page, Frankfort exchange has a Specialist Trading on Frankfurt Floor service which has slightly different trading hours.  I suspect what Google and Yahoo show as Frankfort exchange is this manual trading via a Specialist (opposed to Xetra electronic trading). To answer your question, the stock you're having is exactly the same, meaning if you bought an ETR:BMW you can still sell it on FRA (by calling a FRA Trading Floor Specialist which will probably cost you a fee). On the other hand, for the portfolio valuation and performance assessments you should only use ETR:BMW prices, because it is way more liquid, and thus better reflect the current market valuation. The stock market is just like any other market, but stocks are bought and sold here. Just like you buy and sell your electronics at the electronics market, this is a place where buyers and sellers come together to buy and sell shares or stocks or equity, no matter what you call it. What are these shares?  A share is nothing but a portion of ownership of a company. Suppose a company has 100 shares issued to it, and you were sold 10 out of those, it literally means you are a 10% owner of the company. Why do companies sell shares? Companies sell shares to grow or expand. Suppose a business is manufacturing or producing and selling goods or services that are high in demand, the owners would want to take advantage of it and increase the production of his goods or services. And in order to increase production he would need money to buy land or equipment or labor, etc. Now either he could go get a loan by pledging something, or he could partner with someone who could give him money in exchange for some portion of the ownership of the company. This way, the owner gets the money to expand his business and make more profit, and the lender gets a portion of profit every time the company makes some. Now if the owner decides to sell shares rather than getting a loan, that's when the stock market comes into the picture. Why would a person want to trade stocks? First of all, please remember that stocks were never meant to be traded. You always invest in stocks. What's the difference? Trading is short term and investing is long term, in very simple language. It's the greed of humans which led to this concept of trading stocks. A person should only buy stocks if he believes in the business the company is doing and sees the potential of growth. Back to the question: a person would want to buy stocks of the company because: How does a stock market help society? Look around you for the answer to this question. Let me give you a start and I wish everyone reading this post to add at least one point to the answer. Corporations in general allow many people come together and invest in a business without fear that their investment will cause them undue liability - because shareholders are ultimately not liable for the actions of a corporation. The cornerstone North American case of how corporations add value is by allowing many investors to have put money towards the railroads that were built across America and Canada. For The stock market in particular, by making it easier to trade shares of a company once the company sells them, the number of people able to conveniently invest grows exponentially. This means that someone can buy shares in a company without needing to knock door to door in 5 years trying to find someone to sell to. Participating in the stock market creates 'liquidity', which is essentially the ease with which stocks are converted into cash. High liquidity reduces risk overall, and it means that those who want risk [because high risk often creates high reward] can buy shares, and those who want low risk [because say they are retiring and don't have a risk appetite anymore] can sell shares. "With stocks, you can buy or sell. If you sell first, that's called 'shorting.' As in ""I think linkedin is too high, I'm going to short it."" With options, the terminology is different, the normal process is to buy to open/sell to close, but if you were shorting the option itself, you would first sell to open, i.e you are selling a position to start it, effectively selling it short. Eventually, you may close it out, by buying to close.  Options trading is not for the amateur. If you plan to trade, study first and be very cautious." High frequency trades are intra day. The would buy a stock for 100 and sell for 100.10 multiple times. So If you start with 100 in your broker account, you buy something [it takes 2-3 days to settle], you sell for 100.10 [it takes 2-3 days to settle]. You again buy something for 100. It is the net value of both buys and sells that you need to look at. Trading on Margin Accounts. Most brokers offer Margin Accounts. The exact leverage ratios varies. What this means is that if you start with 10 [or 15 or 25] in your broker you can buy stock of 100. Of course legally you wont own the stock unless you pay the broker balance, etc. "In US public stock markets there is no difference between the actions individual retail traders are ""permitted"" to take and the actions institutional/corporate traders are ""permitted"" to take.  The only difference is the cost of those actions.  For example, if you become a Registered Market Maker on, say, the BATS stock exchange, you'll get some amazing rebates and reduced transaction prices; however, in order to qualify for Registered Market Maker status you have to maintain constant orders in the book for hundreds of equities at significant volumes.  An individual retail trader is certainly permitted to do that, but it's probably too expensive. Algorithmic trading is not the same as automated trading (algorithmic trading can be non-automated, and automated trading can be non-algorithmic), and both can be anywhere from low- to high-frequency.  A low-frequency automated strategy is essentially indistinguishable from a person clicking their mouse several times per day, so: no, from a legal or regulatory perspective there is no special procedure an individual retail trader has to follow before s/he can automate a trading strategy.  (Your broker, on the other hand, may have all sorts of hoops for you to jump through in order to use their automation platform.) Last (but certainly not least) you will almost certainly lose money hand over fist attempting bid-ask scalping as an individual retail trader, whether your approach is algorithmic or not, automated or not.  Why?  Because the only way to succeed at bid-ask scalping is to (a) always be at/near the front of the queue when a price change occurs in your favor, and (b) always cancel your resting orders before they are executed when a price change occurs against you.  Unless your algorithms are smarter than every other algorithm in the industry, an individual retail trader operating through a broker's trading platform cannot react quickly enough to succeed at either of those.  You would have to eschew the broker and buy direct market access to even have a chance, and that's the point at which you're no longer a retail trader. Good luck!" When there is a difference between the two ... no trading occurs. Let's look at an example: Investor A, B, C, and D all buy/sell shares of company X. Investor A wants to sell 10 shares at $20 a share (Ask price $20 x10). Investor B wants to buy 15 shares at $10 a share (Bid price $10 x15). Since the bid price and ask price are different, no sale is made. Next Investor C comes along and wants to sell 5 shares at $14 (Ask price $14 x5). Still no sale. Investor D comes along and wants to buy 5 shares for $14 each. So a sale is finally made. At this point, the stock quote moves to $14. The ask price is $20 x10 and the bid price is $10 x15. No further trading will occur until another investor is willing to buy at $20 or sell at $10.  Another discussion of this topic is shown on this post.