The CBOE Volatility Index closed at 17.10 on September 14, comfortably inside its most recent quiet range, even though the Strait of Hormuz conflict is entering its third month and the Federal Reserve is expected to raise its policy rate this afternoon for the first time since July 2023. Neither event is small. Together, the VIX reading looks out of step with the actual list of risks sitting in front of the market.
Behavioural finance has a name for this. Amos Tversky and Daniel Kahneman described in 1974 how people judge the probability of an event by how easily examples come to mind, the availability heuristic. A threat that has been in the headlines continuously for weeks stops registering as urgent, even while the underlying facts get worse, because novelty, not severity, drives the mental alarm.
What the Fear Gauge Is Actually Missing
The VIX spiked to 20.66 on July 29, its highest close in the period HDQ tracked for this analysis. It has not approached that level since, despite Strait of Hormuz commercial traffic collapsing to roughly five vessels a day and a Saudi east-west pipeline still offline from attack damage. Oil has climbed more than 60% year over year on exactly this story, yet the options market pricing tail risk in equities has not moved with it.
Today adds a second input the index has not yet absorbed. CME FedWatch data puts the odds of a 25 basis point Fed hike at 92.7%, which would lift the federal funds rate to a 3.75 to 4.00% target range. Twenty-nine of thirty-two former Fed officials surveyed this month said the central bank should raise rates. A hike of this size, delivered for the first time in three years, is not the kind of event a calm options market usually sleeps through.
Why Familiarity Reads as Safety
The mechanism is not irrational so much as mismatched to the moment. Investors update their sense of danger from recent, vivid outcomes. A conflict that has produced elevated oil prices without a market crash trains the observer, correctly in the near term, to expect more of the same tomorrow. The trouble is that this kind of learning breaks exactly when conditions shift, and a rate decision landing on top of a live supply shock is a plausible place for that shift to start.
The chart below tracks the VIX through this stretch, from the mid-July calm through the July 29 spike to the current run of sub-18 closes heading into the Fed decision.
The VIX has traded through a widening gap between headline risk and priced risk since early September, holding in the mid-teens through a war that has not de-escalated and a rate decision markets now consider close to certain. Source: CBOE, FRED, Investing.com daily close data.
The Advisor Conversation This Sets Up
A client who has not felt the Hormuz story or a rate hike in their portfolio yet is not necessarily right to be unworried. They are, more precisely, exhibiting exactly the pattern the research predicts: reduced vigilance the longer a threat persists without a visible consequence. The advisor who raises this now, before any repricing happens, is working with the psychology rather than reacting to it after the fact.