An idea popped in my head today. Has anyone ever used a stock investment service that allows you to access an investment API or something like that? It would nice if I could use Ruby to buy or sell stocks in real time, but I do not have any experience in dealing with this programatically. Anybody? Thank you in advance, Michael
on 2005-12-30 03:38
on 2005-12-30 10:01
You'd need real time data feeds as well as a trading API. When I was bored and reading about it a while back, it seemed that in order to get access to APIs you had to sign agreements and often be a fairly large customer of the exchange to get access. Most of the software that is given to private investors and day traders uses one api - generally not published - to access the brokerage - often custom to the brokerage. The broker then has another API into the market. Some of the markets use software based on products from TIBCO or other messaging software vendors. I think the short answer is -- if you want to, good luck getting access. Really, I'd be happy if I could find a source for a real time - or even delayed stock ticker with an easy API so I could write code and just play with simulating trades. -Charlie
on 2005-12-30 10:37
I'm looking at Ruby/Finance library ( http://www.caliban.org/ruby/ruby-finance.shtml). Before using Ruby/Rails, I've researched several financial quoting web-services. Some are free with limitations, others are not. For real-time quoting, it may be worth the money to buy such stuffs, but for delayed or historical quotes, I found Yahoo! Finance data downloading function is good enough. The csv file format is very easy to phrase and import into database. The above mentioned Ruby/Finance library uses Yahoo!Finance as well. Hope it help.
on 2005-12-30 11:20
On 12/29/05, Charles B. <email@example.com> wrote: > get access to APIs you had to sign agreements and often be a fairly > and just play with simulating trades. You might find this of interest: http://rubyquiz.com/quiz41.html
on 2005-12-30 15:52
On Dec 29, 2005, at 7:35 PM, Michael G. wrote: > An idea popped in my head today. Has anyone ever used a stock > investment service that allows you to access an investment API or > something like that? My investment club uses E*Trade for our purchases. We are a "buy and hold" strategy group, so there's not enough action to warrant doing it through Ruby. I have wondered if E*Trade exposes an API for reading account information though. That would be neat for our valuation reports. I could always screen scrape of course, but a web service would be much better. Just haven't had the time to look into it yet... James Edward G. II
on 2005-12-30 17:06
Thanks to everyone for the replies. I'll have to marinate on this for a little while.
on 2005-12-30 17:21
On Dec 30, 2005, at 8:03 AM, Michael G. wrote: > Thanks to everyone for the replies. I'll have to marinate on this for > a little while. Amusing choice of words. :) In case it was a slip-up, the pedagogical side of me wants to point out: You can marinate _in_ something (to soak in a marinade) or you can _ruminate_ on something (to think deeply about, to 'chew over'). (Ruminants are animals [like cows] that eat food and later bring it back up from their stomach into their mouths to chew. The word is based on the Latin word for "to chew over again"; it is from this that our modern usage of the word 'ruminate' is derived. Chewing on something for a long period of time, staring out into space...he must be lost in thought.)
on 2005-12-30 17:49
Gavin K. wrote: ... So I'm sitting here, eating breakfast, and reading ruby-talk, when ... > (Ruminants are animals [like cows] that eat food and later bring it > back up from their stomach into their mouths to chew. Suddenly my oatmeal tasted ... different. :) James -- http://www.ruby-doc.org - Ruby Help & Documentation http://www.artima.com/rubycs/ - Ruby Code & Style: Writers wanted http://www.rubystuff.com - The Ruby Store for Ruby Stuff http://www.jamesbritt.com - Playing with Better Toys http://www.30secondrule.com - Building Better Tools
on 2005-12-30 18:05
On 12/29/05, Michael G. <firstname.lastname@example.org> wrote: > An idea popped in my head today. Has anyone ever used a stock > investment service that allows you to access an investment API or > something like that? I am very interested in this. A few weeks back I looked into a few different brokers with APIs. Here are a few links: http://qcharts.mbtrading.com/sdk.asp http://www.interactivebrokers.com/en/software/high... http://www.quotetracker.com/help/qtserver.shtml http://www.cybertrader.com/AboutCyberTrader/API/Default.aspx Interactive Brokers offers a "paper trading" service. Could be a great way to test your software cheaply. http://www.interactivebrokers.com/en/software/pape... On Windows you may be able to use the QuoteTracker API, which will open access to a lot of brokers, both for trading and streaming quotes. http://www.quotetracker.com/ I have some experience with financials could help anyone navigate through those details. I've written no code yet, and my day job unfortunately does not give me the chance to play with Ruby, so my Ruby level is probably at "moderate enthusiast". Anyone should feel free to contact me for more details.
on 2005-12-30 20:56
Interesting stuff there - It all seems to require platforms that I don't have, but it's interesting stuff. Here's one I just found: http://fxtrade.oanda.com/fxtrade/api/index.shtml which does support linux, solaris, and windows. It's FX, not stocks, but it's there. And they have a game version where you can trade without using real money: http://fxgame.oanda.com/ -Charlie
on 2005-12-31 13:36
I'd suggest InteractiveBrokers.com They offer a Java based API. I've read that Java and Ruby play well together so you might want to look into that. I like them more for their commissions on option contracts. They charge $1 per contract which is about the same as optionsxpress.com but optionsxpress forces you to trade 10 contracts to get the $1 price. 10 contracts corresponds to 1,000 shares of stock which is too large of a bet for most programmers.
on 2006-01-01 22:31
oh, IB also offers paper trading which means you trade with play money which should be of interest to a programmer tinkering with trading algorithms.
on 2006-01-04 03:24
I guess Ruby will become the script language to some softwares and things will be easier :)
on 2006-01-21 07:18
Is there a ruby library for extracting historical securities information? Or how about Options chains?