This is a summary of links featured on Quantocracy on Sunday, 01/12/2020. To see our most recent links, visit the Quant Mashup. Read on readers!
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Market Structure Part 1: Order Volume Density [Reproducible Finance]Welcome to another installment of Reproducible Finance! Inspired by a great visualization in Hands on Time Series with R by Rami Krispin, today well investigate some market structure data and get to know the Midas data source provided by the SEC. Lets start by importing data from the SEC website for the 2nd quarter of 2019. If you navigate to the SEC website here
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The Idiosyncratic Volatility Puzzle: Then and Now [Alpha Architect]One of the interesting puzzles in finance is that stocks with greater idiosyncratic volatility (IVOL) have produced lower returns (see an earlier post here). This is an anomaly because idiosyncratic volatility is viewed as a risk factorgreater volatility should be rewarded with higher, not lower, returns. Studies such as Arbitrage Asymmetry and the Idiosyncratic Volatility Puzzle, which
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The predictive superiority of ensemble methods for CDS spreads [SR SV]Through R or Python we can nowadays apply a wide range of methods for predicting financial market variables. Key concepts include penalized regression, such as Ridge and LASSO, support vector regression, neural networks, standard regression trees, bagging, random forest, and gradient boosting. The latter three are ensemble methods, i.e. machine learning techniques that combine several base models