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How to use stock-portfolio-evaluator: a rule-of-thumb Newsvendor score for a stock portfolio
Friday, October 30, 2026
A small Python command-line tool that reads a portfolio file and prints buy, hold or sell labels, a three-month gain figure per stock a...
Read the piece →How to use global-stock-screener: rule-based stock screens, offline
Friday, October 30, 2026
Run Darvas breakout, Piotroski F-Score and Coffee Can screens on a year of cached prices from 20 markets, with no API keys. ← All Arti...
Read the piece →The Negative Cash Conversion Cycle: Free Money or a Warning Sign?
Wednesday, October 28, 2026
A company with a negative cash conversion cycle collects cash from its customers before it has to pay its suppliers. That can be the sign...
Read the piece →Earnings Drift and Piotroski Work Only Where Trading Is Thin
Wednesday, October 28, 2026
Two classic stock signals, earnings drift and the Piotroski F-score, both work, but only where trading is thin. Adding return on capital ...
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Umashankar Triplicane Dwarakanathan
Investment Promotion & Energy-Sector Leader · Chennai, Tamil Nadu, India