Chris Conlan

Data Scientist

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Download Price History for Every S&P 500 Stock with R

May 16, 2017 By Chris Conlan 28 Comments

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 […]

Filed Under: Automated Trading, Programming with R

The Case for OAuth in Automated Trading via Retail Brokerage Adoption

January 15, 2017 By Chris Conlan Leave a Comment

oauth and other ssl connections in retail trading

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 […]

Filed Under: Automated Trading, Programming with R Tagged With: automated trading, HTTP, HTTPS, OAuth, python, r programming, retail trading

S&P 500 for The Long Haul: Figures to Keep in Mind

January 3, 2017 By Chris Conlan 4 Comments

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 […]

Filed Under: Automated Trading Tagged With: data analysis, investing benchmarks, mutual funds, return series, s&p 500, time series

Discussion on Various Styles of Trading

December 8, 2016 By Chris Conlan Leave a Comment

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 […]

Filed Under: Automated Trading Tagged With: automated trading online, Chris Conlan, financial trading, Online trading, What is online trading?

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Pulling All Sorts of Financial Data in Python [Updated for 2021]

Calculating Triple Barrier Labels from Advances in Financial Machine Learning

Calculating Financial Performance Metrics in Pandas

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