Update #2: Track this Issue Here Updates to this post are more about which API’s are still supported than how to access them with R, Python, or any other language. Follow the hilarious change history of EOD stock data API’s at my other post: https://chrisconlan.com/download-daily-data-every-sp-500-stock-r/. Update: Using Quandl’s API Because everything I write about breaks, […]
Download Price History for Every S&P 500 Stock with R
Update #9: Quandl API is Deprecated According to an email I got from Quandl (and a few commenters corroborating), the Quandl EOD data API is no longer supported and is not providing data past March 27th. According to the CIO of Quandl, it was being provided for free by a 3rd party. That 3rd party […]
The Case for OAuth in Automated Trading via Retail Brokerage Adoption
In Chapter 9 of Automated Trading with R, we discuss different networking capabilities of popular retail brokerages. At the time of writing, and to the best of my knowledge now, there are only two reputable brokerages that offer OAuth via HTTPS for sending trade orders. These brokerages are TradeKing and OANDA. TradeKing offers a wide […]
S&P 500 for The Long Haul: Figures to Keep in Mind
When considering any investment opportunity, classical literature tells us to always compare it to the risk-free rate. While this is never a bad idea, this article will study the S&P 500 for use as a comparable investment. The everyday investor now has access to the S&P 500 as an investment vehicle through ETFs (Exchange Traded […]
Discussion on Various Styles of Trading
Overview Say, you are interested in learning about the various ways people trade financial instruments. The first logical step would be to check out some good books on the topic. A quick search through best-sellers and highest-rated books on “trading” in Amazon returns a mountain of technical jargon, and we haven’t even gotten past the […]