Is a stock's trade size history publicly available?
That is called a 'volume chart'. There are many interactive charts available for the purpose. Here is clear example.  (just for demonstration but this is for India only) 1) Yahoo Finance 2) Google Finance 3) And many more Usually, the stock volume density is presented together (below it) with normal price vs time chart. Note: There is a friendly site about topics like this. Quant.stackexchange.com. Think of checking it out. You can buy the data and process it on your own.  http://www.nyxdata.com/Data-Products/Daily-TAQ "My Broker and probably many Brokers provide this information in a table format under ""Course of Sale"". It provides the time, price and volume of each trade on that day. You could also view this data on a chart in some charting programs. Just set the interval to ""Tick by Tick"" and look at the volume. ""Tick by Tick"" will basically place a mark for every trade that is taken and then the volume will tell you the size of that trade."
"Changing my answer based on clarification in comments. It appears that some of the securities you mentioned, including GEAPP, are traded on what is colloquially known as the Grey Market. Grey Sheets, and also known as the ""Gray Market"" is another category of OTC stocks that is completely separate from Pink Sheets and the OTCBB.  From investopedia The grey market is an over-the-counter market where dealers may execute orders for preferred customers as well as provide support for a new issue before it is actually issued. This activity allows underwriters and the issuer to determine demand and price the securities accordingly before the IPO.  Some additional information on this type of stocks. (Source) Unlike other financial markets... No recent bid or ask quotes are available because no market makers share data or quote such stocks. There is no quoting system available to record and settle trades. All Grey sheet trading is moderated by a broker and done between consenting individuals at a price they agree on. The only documentation that can be publicly found regarding the trades is when the last trade took place. No SEC registration and little SEC regulation. Regulation of Grey Sheet stocks takes place mainly on a state level. Unlike Pink Sheets, these stocks have no SEC registration to possess a stock symbol or to possess shares or trade shares of that stock. Such penny stocks, similar to Pink Sheets, are not required to file SEC (Securities and Exchange Commission) financial and business reports. These stocks may not be solicited or advertised to the public unless a certain number of shares are qualified to be traded publicly under 504 of Regulation D. Extremely Illiquid. Gray sheet trading is infrequent, and for good reason... Difficult to trade, not advertised, difficult to follow the price, the least regulation possible, hard to find any information on the stock, very small market cap, little history, and most such stocks do not yet offer public shares. The lack of information (bids, history, financial reports) alone causes most investors to be very skeptical of Gray Sheets and avoid them altogether.  Gray Sheets are commonly associated with Initial public offering (IPO) stocks or start up companies or spin-off companies, even though not all are IPO's, start-ups or spin-offs. Grey Sheets is also Home to delisted stocks from other markets. Some stocks on this financial market were once traded on the NASDAQ, OTCBB, or the Pink Sheets but ran into serious misfortune - usually financial - and thus failed to meet the minimum requirements of the registered SEC filings and/or stock exchange regulations for a financial market. Such stocks were delisted or removed and may begin trading on the Grey Sheets.  So to answer your question, I think the cause of the wild swings is that:   Great question, BTW." "Shares sold to private investors are sold using private contracts and do not adhere to the same level of strict regulations as publicly traded shares. You may have different classes of shares in the company with different strings attached to them, depending on the deals made with the investors at the time. Since public cannot negotiate, the IPO prospectus is in fact the investment contract between the company and the public, and the requirements to what the company can put there are much stricter than private sales. Bob may not be able to sell his ""special"" stocks on the public exchange, as the IPO specifies which class of stock is being listed for trading, and Bob's is not the same class. He can sell it on the OTC market, which is less regulated, and then the buyer has to do his due diligence. Yes, OTC-sold stocks may have strings attached to them (for example a buy back option at a preset time and price)." In most cases, a debit card can be charged like a credit card so there is typically no strict need for a credit card. However, a debit card provides weaker guarantees to the merchant that an arbitrary amount of money will be available. This is for several reasons: As such, there are a few situations where a credit card is required. For example, Amazon requires a credit card for Prime membership, and car rental companies usually require a credit card. The following does not apply to the OP and is provided for reference. Debit cards don't build credit, so if you've never had a credit card or loan before, you'll likely have no credit history at all if you've never had a credit card. This will make it very difficult to get any nontrivially-sized loan. Also, some employers (typically if the job you're applying for involves financial or other highly sensitive information) check credit when hiring, and not having credit puts you at a disadvantage. "Rather than automating it, why not just create a listing that you maintain and display on your site yourself?  That way you don't have to give out credentials or anything else. It also presents a bit of a marketing opportunity.  You could group contributors by the size of their contributions and thank them publicly.  For example, maybe your top contributors could be members of the ""Heroes Club"", and you could come up with jazzy names for other groups.  It's a way of publicly acknowledging their contributions in a way that they appreciate, and perhaps it motivates others to up their own contributions to get into one of the more prominent groupings.  It becomes a competitive ""one-upsmanship"" thing, if that makes sense. I understand your desire to be transparent, and that's admirable, but see the marketing and public relations opportunity it brings to you as well. I hope this helps. Good luck!" I found a possible data source. It offers fundamentals i.e. the accounting ratios you listed (P/E, dividend yield, price/book) for international stock indexes. International equity indices based on EAFE definitions are  maintained by Professor French of French-Fama fame, at Dartmouth's Tuck Business School website. Specifics of methodology, and countries covered is available here. MSCI is the data source. Historical time interval for most countries is from 1975 onward. (Singapore was one of the countries included). Obtaining historical ratios for international stock indices is not easily found for free. Your question didn't specify free though. If that is not a constraint, you may wish to check the MSCI Barra international stock indices also. Street name is not what you think it is in the question.  The broker is the owner in street name.  There is no external secondary owner information.   I don't know if there is available independent verification, but if the broker is in the US and they go out of business suddenly, you can make a claim to the SIPC. "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.""" This is going to be a bit of a shameless plug, but I've build a portfolio tracking website to track your portfolio and be able to share it (in read-only mode) as  well. It is at http://frano.carelessmusings.com and currently in beta. Most portfolio trackers are behind a login wall and thus will lack the sharing function you are looking for. Examples of these are: Yahoo Finance, Google Finance, Reuters Portfolios, MorningStart Portfolios, and many others. Another very quick and easy solution (if you are not trading too often) is a shared google docs spreadsheet. Gdocs has integration with google finance and can retrieve prices for stocks by symbol. A spreadsheet can contain the following: Symbol, Quantity, Avg. Buy Price, Price, P/L, P/L% and so on. The current price and P/L data can be functions that use the google finance API. Hope this helps, and if you check out my site please let me know what you think and what I could change.