See list of stock trades for day
"You can see all the (millions) of trades per day for a US stock only if you purchase that data from the individual exchanges (NYSE, NASDAQ, ARCA, ...), from a commercial market data aggregator (Bloomberg, Axioma, ...), or from the Consolidated Tape Association.  In none of that data will you ever find identifying information for the traders. What you are recalling regarding the names of ""people from the company"" trading company stock is related to SEC regulations stating that people with significant ownership of company stock and/or controlling positions on the company board of directors must publicize (most of) their trades in that stock.  That information can usually be found on the company's investor relations website, or through the SEC website."
Graphs are nothing but a representation of data. Every time a trade is made, a point is plotted on the graph. After points are plotted, they are joined in order to represent the data in a graphical format.  Think about it this way.  1.) Walmart shuts at 12 AM. 2.)Walmart is selling almonds at $10 a pound.  3.) Walmart says that the price is going to reduce to $9 effective tomorrow. 4.) You are inside the store buying almonds at 11:59 PM.  5.) Till you make your way up to the counter, it is already 12:01 AM, so the store is technically shut. 6.) However, they allow you to purchase the almonds since you were already in there.  7.) You purchase the almonds at $9 since the day has changed. 8.) So you have made a trade and it will reflect as a point on the graph. 9.) When those points are joined, the curves on the graph will be created. 10.) The data source is Walmart's system as it reflects the sale to you. ( In your case the NYSE exchange records this trade made). Buying a stock is just like buying almonds. There has to be a buyer. There has to be a seller. There has to be a price to which both agree. As soon as all these conditions are met, and the trade is made, it is reflected on the graph. The only difference between the graphs from 9 AM-4 PM, and 4 PM-9 AM is the time. The trade has happened regardless and NYSE(Or any other stock exchange) has recorded it! The graph is just made from that data. Cheers. I tried automation and it didn't work as well. Automation is great if you want to sell or buy when a stock drops or rises; however, automation is terrible for day trading. Specifically because it is impossible to automate a program to scan every news feed. Even then, automation is only if you want to be the effect of a rise or drop in the market. A stock rises or drops and you sell or buy. The problem that arises is that it is nearly impossible to make money off of automating trades. You need to buy the stock before it rises and sell it before it drops. There is no way any program will ever be able to do that accurately. A couple ways, but its not a guarantee.  You have to have special charts. Instead of each tick being 1 min, 5 min, or whatever, it is a set number of trades. Say 2000. Since retail investors only buy and sell in small amounts, there will be small volume per tick. An institutional investor, however, would have a much much higher trade lot size, even if using an algo. Thus, large volume spikes in such a chart would signal institutional activity over retail. Similarly, daily charts showing average trade size can help you pick out when institutional activity is highest, as they have much larger trade sizes. You could also learn how the algos work and look for evidence one is being used. ie every time price hits VWAP a large sell order goes through would indicate an institutional investor is selling, especially if it happens multiple times in a row. 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. This information will be disseminated to the level one feed and the level one graph of the stock price will be updated. Thus if you have more than 2435 shares to sell, you cannot expect to execute your order at the bid price in one go. Of course, the more shares you are trying to get rid of, the further down the buy side you will have to go. In reality for a highly liquid stock as this, the order book receives many amendments per second and it is unlikely that your trade would make much difference. On the right hand side of the display you can see the recent trades: these are the times the trades were done (or notified to the exchange), the price of the trade, the volume and the trade type (AT means automatic trade).  GlaxoSmithKline is a highly liquid stock with many willing buyers and sellers. But some stocks are less liquid. In order to enable traders to find a counterparty at short notice, exchanges often require less liquid stocks to have market makers. A market maker places buy and sell orders simultaneously, with a spread between the two prices so that they can profit from each transaction. For instance Diurnal Group PLC has had no trades today and no quotes. It has a more complicated order book, enabling both ordinary buyers and sellers to list if they wish, but market makers are separated out at the top. Here you can see that three market makers are providing liquidity on this stock, Peel Hunt (PEEL), Numis (NUMS) and Winterflood (WINS). They have a very unpalatable spread of over 5% between their bid and offer prices. Further in each case the sum total that they are willing to trade is 3000 shares. If you have more than three thousand Dirunal Group shares to sell, you would have to wait for the market makers to come back with a new quote after you'd sold the first 3000. Market Watch has an IPO calender with details of upcoming IPOs that should provide most of the information you need. You can follow the intra-day NAV of an ETF, for instance SPY, by viewing its .IV (intra-day value) ticker which tracks it's value.   http://finance.yahoo.com/q?s=spy http://finance.yahoo.com/q?s=^SPY-IV Otherwise, each ETF provider will update their NAV after business each day on their own website. https://www.spdrs.com/product/fund.seam?ticker=spy Reuters has a service you can subscribe to that will give you lots of Financial information that is not readily available in common feeds.  One of the things you can find is the listing/delist dates of stocks.  There are tools to build custom reports.  That would be a report you could write.  You can probably get the data for free through their rss feeds and on their website, but the custom reports is a paid feature. FWIW re-listing(listings that have been delisted but return to a status that they can be listed again) is pretty rare.  And I can not think of too many(any actually) penny stocks that have grown to be listed on a major exchange. It looks like GOOG did not have a pre-market trade until 7:14 am ET, so Google Finance was still reporting the last trade it had, which was in the after-hours session yesterday. FB, on the other hand, was trading like crazy after-hours yesterday and pre-market today as it had an earnings report yesterday. Yahoo Finance's Historical Prices section allows you to look up  daily historical quotes for any given stock symbol, you don't have to hit a library for this information. Your can choose a desired time frame for your query, and the dataset will include High/Low/Close/Volume numbers. You can then download a CSV version of this report and perform additional analysis in a spreadsheet of your choice. Below is Twitter report from IPO through yesterday: http://finance.yahoo.com/q/hp?s=TWTR&a=10&b=7&c=2013&d=08&e=23&f=2014&g=d Google Finance will do all the bullet points in your list and a few more.  The only drawback is that you have to enter ALL buy and sell manually.  It has an import feature, but it does not work with all trading software. http://www.google.com/finance Let me know if it works.  Also, yahoo.com/finance has a good tool, but I still like better Google's application. First - Google's snapshot -  Then - Yahoo -  I took these snapshots because they will not exist on line after the market opens, and without this context, your question won't make sense. With the two snapshots you can see, Yahoo shows the after hours trades and not just the official market close for the day. The amount it's down is exactly tracked from the close shown on Google. Now you know. I'm a successful day trader. I turned $300,000 into over $10 million over the course of a few years. I went into trading after I sold my failing company for around $1 million just to bring me out of debt and give me some cash. To give you an idea of how I did it, I just studied everything possible for a few months before I even made my first trade. Instead of having a 9-5 job, I was studying the market from 9-5. I looked at graphs, patterns, everything. I subscribed to multiple real time news feeds and have around 6 college students currently working under me just sifting through patterns and watching real time news feed. I only plan on doing this for 5 or 10 more years before I go into long term investing as it is incredibly stressful, but the returns are very good. Feel free to ask me any questions or to send me a PM if you want any specifics. "Where can I download all stock symbols of all companies ""currently listed"" and ""delisted"" as of today? That's incredibly similar . You can also do it with a Bloomberg terminal but there's no need to pay to do this because he data changes so slowly." Previously, Google had a delayed update for their stock prices (15 minutes I believe). That change enabled users of Google Finance to see updates to stock prices in real-time. "SECTION | CONTENT :--|:-- Title | ""High Profit Trades found with Candlestick Breakout Patterns"" - Stephen Bigalow Description | Originally presented on July 10, 2012.    For more information on Steve Bigalow's Candle Profit System for MetaStock visit http://www.metastock.com/products/thirdparty/?3PC-ADD-CPS  Everyone wishes they got into the fast moving stock that jumped up $25 in a month. Candlestick Signals not only identify these potential movers -- they help you identify if there is still time to participate in the move!  In this live webinar Steve will show you: Which signals produce the Breakout Patterns How to per... 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