Recent analysis
The Negative Cash Conversion Cycle: Free Money or a Warning Sign?
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
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 ...
Read the piece →How to use piotroski-liquidity-research: a point-in-time test of the Piotroski F-score and liquidity
October 19, 2026
piotroski-liquidity-research asks whether the Piotroski F-score premium is explained by firm size or by stock liquidity, using point-in...
Read the piece →How to use market-correlation-matrices: read per-market stock correlation snapshots
October 19, 2026
Ready-made correlation matrices of daily stock returns for six markets (India, US, Japan, Korea, China, Europe), stored compactly so yo...
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Umashankar Triplicane Dwarakanathan
Investment Promotion & Energy-Sector Leader · Chennai, Tamil Nadu, India