I would like to make an program that acts like a big filter for stocks. To do so, I need to have real-time or delayed quotes from the market. I started getting stock quotes by requesting pages from yahoo, accordingand parsing the html to the ticker, and parsing the html.

I was wondering how to do this requesting and parsing html.

Stock Quotes and Charts from Google Finance using C# - CodeProject

Is there some way I can request only the stock quotes and its info? I know some applications do this, and I am very curious how they do it, because requesting web pages and parsing them is very time-consuming. Parsing the output of the webpage is a chump's game. It is always changing and unless you're willing to heavily invest in some sort of very resilient parser you're going to spend your life twiddling with it. Use a web service, google offers one http: This page has more information.

Afaik, this kind of data is available via subscription based models, Xignite is one that comes to mind. To my knowledge, NASDAQ and the NYSE do not provide any freely usable API's. There is actually a yahoo web service that will return CSV file of stock quotes. So no HTML parsing needed. In the financial services industry, most banks will have a real time feed provided by Reuters or Bloomberg, but this, obviously, will cost a lot of money.

If you Google for "stock price feed" or "market data feed" you will get some options, some free, some paid for. I would also recommend using a Complex Event Processing engine such as Esper for doing this sort of real time processing, it will be substantially easier than writing the whole application stack from scratch. For downloading yahoo finance stock quotes in C or VB.

Google Stock API « Jarloo

NET you can use the "Yahoo! Try to look at this channel9 presentation. It is a F introduction but from Here is a list of websites that provide free intraday data. By posting your answer, you agree to the privacy policy and terms of service. Stack Overflow Questions Developer Jobs Documentation beta Tags Users. Sign up or log in to customize your list. Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us.

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Join them; it only takes a minute: David Menard 1, 3 27 I am doing something similar including option prices. I know you can get pay access, but a web service with pricing would be priceless if free.

I know this doesn't answer your question, but this may help you anyway: Since you're building a "filter" for stocks, you may need company fundamental information revenue, profit, number of employees, industry codes, etc - a great place to get all of that is the Mergent Fundamentals API - mergent.

For a ready made solution check the following link codecanyon. DLL and sample code file provided,very easy to integrate in web as well as desktop applications. Sometimes the data you need just isn't available any other way. This Google page seems to have nothing but an empty promise. Where is the Web service?

You can get csv data from yahoo. Mongus Pong 8, 6 31 Aye 2 John Channing 3, 5 34 Moberg 4 You can export the data and use it in your software. Using Visual Studio Community C. Sign up or log in StackExchange. Sign up using Facebook.

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Thanks, Dave c java stocks share improve this question. Yahoo offers there data for free check out jarloo.

Getting real-time market/stock quotes in C#/Java - Stack Overflow

So no HTML parsing needed share improve this answer. Click here share improve this answer.

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