Archive for the ‘Time-based’ Category

A topic recently on me noggin has been day-of-month seasonality (read more, more, and more). Using a simple walk-forward test to minimize hindsight bias, I showed that trading the days of the month that have been strong historically has consistently led to much stronger returns in the future. That’s as true today as it was […]


As noted by Paststat, yesterday marked the Dow Jones Industrial Average’s 18th straight winning Tuesday. How rare an event is that? Very… The chart below shows the longest active day-of-week winning streaks for the DJIA since 1900 (regardless of the day of the week). The red arrow marks our current winning streak of 18. It […]


There has been an abundance of “Sell in May” analysis out of the quantitative blogosphere this week. A quick roundup: – Turnkey Analyst – Doug Short – Bloodhound Exchange + follow up – Woodshedder – Paststat + follow up – UK Stock Market Almanac – MarketSci + follow up – Plus 99% of posts from […]


A topic recently on me noggin has been day-of-month seasonality (read more, more, and more). Using a simple walk-forward test to minimize hindsight bias, I showed that trading the days of the month that have been strong historically has consistently led to much stronger returns in the future. That’s as true today as it was […]


In my previous post, I showed what I think is clear evidence that “sell in May” (i.e. trading the strongest contiguous 6 months of the year) is mostly bunk. In this post, using a simple walk-forward test to minimize hindsight bias, I’ll look at trading the strongest non-contiguous 6 months of the year (i.e. unlike […]