https://zetaminds.com/blog/ Quantitative market research by two finance PhDs: market regimes, stock segments and portfolio risk tools, with the method shown. https://zetaminds.com/blog/seven-kinds-of-trading-day/ https://zetaminds.com/blog/seven-kinds-of-trading-day/ Sat, 03 Oct 2026 00:00:00 +0000 We sorted every trading day since April 2019 into seven regimes. Here is what they look like, and why the latest day lands in the speculative one.