Calendar or bands, how often to check, and the exact maths of a rebalance after a boom and after a crash. Plus the cheapest way to rebalance: with new money.
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Size a credit spread by its max loss, never the premium. The formula, a worked example, iron condors, and the early-assignment risks the max loss hides.
March 2026 market wrap: open conflict in the Middle East moved the market story away from AI, bringing more geopolitical volatility and inflation pressure.
Joel Greenblatt's magic formula in plain English: the 2 numbers it ranks, what the 1988–2004 test showed, and the losing years the book warns about.
February 2026 market wrap: Kevin Warsh was nominated as the next Fed Chair, signalling a shift from the Powell era toward a more rules-based policy stance.