This is a summary of links featured on Quantocracy on Wednesday, 01/10/2018. To see our most recent links, visit the Quant Mashup. Read on readers!
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Plotting Volatility Surface for Options [AAA Quants]This blog post is a revised edition of Toms original blog post with a newer data set. More information, source code & inspiration can be found here. Code for this blog post is in our Github repository. Options are complex instruments with many moving parts. Specifically, options are contracts that grant the right, but not the obligation to buy or sell an underlying asset at a set price on
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How to turn a losing strategy to a winning strategy with commissions [Alvarez Quant Trading]A mean reversion strategy I trade was developed with another researcher. This strategy enters on a further intraday weakness with a limit order and typically exits a few days later when the stock bounces. Recently this researcher sent me and email saying Try the strategy as a day trade. Enter at the open and exit at the close. Surprisingly good results. Of course, this peaked my interest and
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Why You Need Independent Verification of Strategy Results [Allocate Smartly]Our site serves a lot of purposes for tactical asset allocation (TAA) investors: curating the best published strategies, testing those strategies with superior historical data, providing the ability to combine strategies into custom portfolios, and tracking even the most complex strategies in near real-time. But maybe the most important function we serve is simply independent verification of
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How Bad Are False Positives, Really? [Alex Chinco]Imagine youre looking for variables that predict the cross-section of expected returns. No search process is perfect. So, as you work, you will inevitably uncover both tradable anomalies as well as spurious correlations. To figure out which are which, you regress returns on each variables that you come across: \begin{equation*} r_n = \hat{\alpha} + \hat{\beta} \cdot x_n + \hat{\epsilon}_n