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Gold’s glitter fades: biggest one-day drop since 2013
latest feature
Gold’s glitter fades: biggest one-day drop since 2013
Roger Montgomery
October 22, 2025
While bubble definitions abound, most fall into two camps: those that measure overvaluation and those that observe the behaviours and conditions that typically give rise to it.
The most straightforward definition of a bubble is asset prices climbing far above some measure of value, such as earnings, dividends, gross-value-added (GVA) or discounted cash flows. Robert Shiller’s famous CAPE ratio, which compares stock prices to long-term average earnings, and John Hussman’s market-cap-to-GVA, were designed to flag these distortions. continue…
While bubble definitions abound, most fall into two camps: those that measure overvaluation and those that observe the behaviours and conditions that typically continue...




















By now, every investor has heard the bubble warning. Yet, when markets are soaring on optimistic expectations for future growth, high prices seem entirely reasonable. Indeed, and somewhat worryingly, in the midst of a boom, high prices validate the optimism.