Many asset management firms are happily enjoying record revenue and profits driven not by inorganic growth or skillful portfolio management but by a seemingly endless increase in US equity prices. These firms are effectively commodity producers entirely dependent on the price of an index over which(...)

Just because I’m ignorant doesn’t mean I won’t try things. Feel free to correct any ignorance that follows. More than anything I would like to feature the new htmlwidget visNetwork. I thought the example from Minimum Spanning Trees in R applied to currency data (similar to this research paper(...)

A kind reader directed me in a comment on Experiments in Time Series Clustering to this paper. Clustering of Time Series Subsequences is Meaningless: Implications for Previous and Future Research Eamonn Keogh and Jessica Lin Computer Science & Engineering Department University of California –(...)

Last night I spotted this tweet about the R package TSclust. I should start by saying that I really don’t know what I’m doing, so be warned. I thought it would interesting to apply TSclust to the S&P 500 price time series. I took the 1-day simple rate of change, grouped by year with dplyr, and(...)