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Line chart showing the VIX holding near 15.85 despite Iran sanctions and Canadian tariff escalation in late August 2026.

Iran sanctions and Canada's retaliatory tariffs landed within days of each other this week, yet the VIX barely reacted, staying inside the narrow range it has held since early August. Behavioural economists Daniel Kahneman and Amos Tversky's availability heuristic offers an explanation: repeated shocks without matching losses make each additional one feel less probable, not more. Jackson Hole on Friday and the Bank of Canada's September 2 decision are the next tests of whether that compression holds.

This chart is presented for general informational purposes only and does not constitute financial, investment, tax, or legal advice. Figures reflect the source and period indicated and may no longer be current.

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