The CBOE Volatility Index closed at 15.18 on September 23, a level well inside its normal range and clearly below its September 10 peak of 17.84. On the surface, that reads as an orderly market. The Toronto Stock Exchange session underneath it was not orderly at all: the composite index gained 326 points on Tuesday, then gave back 402 points on Wednesday as base metal shares slid.
That gap between a calm options-derived index and a violent single-day point swing is not a data error. It is the exact condition behavioural finance describes, and it is worth naming precisely before the next client call, because the instrument a client actually experiences is the account statement, not the VIX.
The Loss Aversion Mechanism Behind the Swings
Kahneman and Tversky, publishing in 1979, established that losses are felt roughly twice as intensely as equivalent gains. A portfolio that mirrors the TSX did not experience a calm week. It experienced a sharp Tuesday relief followed by a Wednesday drop that, by the loss aversion coefficient, likely registered as considerably worse than the Tuesday gain felt good.
This is the mechanism connecting the past several weeks of oil driven volatility, tied to the ongoing Iran conflict and the Strait of Hormuz disruption, to the broader market. The Federal Reserve raised its target range to 3.75 to 4.00% on September 16, its first hike in three years, citing inflation risk with energy prices as a visible driver. The Bank of Canada, by contrast, held at 2.25% on September 2, watching the same energy inflation pressure against a slower domestic growth path. That divergence sits underneath both the TSX swings and the VIX reading that looks calmer than it should.
The volatility index has traded in a narrow band for three weeks even as the underlying market lurched by hundreds of points in a single session, and the two series moving independently is the emotional gap advisors are being asked to manage this week.
The VIX closed at 15.18 on September 23, below its September 10 peak of 17.84, even as the TSX fell 402 points that same session. Source: CBOE via Investing.com.
Why the Headline Number Understates What Clients Feel
The VIX is an options-derived measure of expected volatility across the broad index. It does not measure the felt experience of an individual account holder watching a statement move by hundreds of points in an afternoon. A client with concentrated bank or energy exposure lived through the full 402 point Wednesday drop regardless of what the thirty-day forward measure said about the market as a whole.
This is the availability heuristic compounding the loss aversion effect. Iranian aviation sanctions took effect September 23, and Iran has offered to reopen shipping through the Strait of Hormuz within seven days if military pressure eases, with negotiators describing the latest round of talks as constructive. Vivid, fast moving headlines like these make the risk of a further shock feel more probable than the underlying base rate supports, and that miscalibration is what shows up as a phone call, not as a data point on a chart.
What This Means for the Conversation Ahead
A client asking about market conditions this week is not asking about the VIX. They are asking whether the Wednesday drop is the start of something or a single bad session inside a still contained volatility regime. The honest answer, grounded in the data, is the second: a thirty day forward measure sitting comfortably under 16 even after a 400 point down day is a market pricing in continued turbulence, not a breakdown. Naming that distinction directly is the value an advisor who understands the mechanism can add this week.