This tutorial shows how to create a web application that uses ASP.
NET Signal R 2 to provide server broadcast functionality.
Updating a chalk board was an entry point for many traders getting into financial markets and as mentioned in the book Reminiscences of a Stock Operator those updating the boards would wear fur sleeves so they wouldn't accidentally erase prices.
If the stock doesn't trade for 3 hours, it will be the last trade price from 3 hours ago. The next price will be whatever the next two parties agree upon and so forth.You can insert the live market price, EPS, PE, 52-week high, book value, or any other of over 80 quotes into a cell with this VBA function.The data updates to reflect current market values when you re-open or re-calculate your spreadsheet.In the early 19th century Reuters sent data by carrier pigeons between Germany and Belgium which may have played a part in trading.In the late 1860s, in New York, young men called “runners” carried prices between the exchange and broker’s offices, and often these prices were posted by hand on large chalk boards in the offices.Let’s say you wanted the EPS estimate of The Goldman Sachs Group for the next quarter. =Yahoo Finance(“GS”,”epsestimatenextquarter”) and hit Enter. The VBA will request the data from Yahoo Finance and place it in your cell.If you recalculate or re-open the spreadsheet, the data automatically updates with the most recent market value.Server broadcast means that communications sent to clients are initiated by the server.This scenario requires a different programming approach than peer-to-peer scenarios such as chat applications, in which communications sent to clients are initiated by one or more of the clients.You can use the function to develop your own stock screeners, identify undervalued shares, keep track of your portfolio value, and more.UPDATE: If you want a professional Excel add-in at a low price for live stock quotes, option prices and more, then investigate Market XLS.