Case Study · The Vanna Rally
Free to readThe Vanna Rally — November 2020
After the 2020 election uncertainty resolved, the market melted up while volatility collapsed. A lot of that grind higher wasn't buyers — it was dealers hedging vanna.
The cleanest way to see vanna is to find a market that rose because volatility fell. November 2020 is the textbook example: two big uncertainties resolved within days, implied vol crashed, and the resulting dealer hedging became a persistent bid.
The setup
Heading into November 2020, the option market carried a thick premium for two overlapping unknowns — the U.S. election and the pandemic. Implied vol was elevated, and dealers were short a large book of that protection. Then the uncertainty drained away fast: the election resolved, and on November 9 came the vaccine-efficacy news. Implied vol collapsed — and that collapse is precisely what fires vanna.
Elevated implied vol; dealers short a heavy protection book. The vanna exposure is loaded and pointing one way.
Uncertainty starts resolving; implied vol begins to fall. Dealer deltas shift as vol drops — they buy to stay hedged.
A second uncertainty collapses; vol craters. The vanna bid intensifies — a melt-up on falling volatility, not fresh fear-buying.
As vol keeps grinding lower, charm into each expiration adds to the drift. The rally is sustained partly by hedging mechanics.
Illustrative. As implied vol fell, dealer vanna hedging bought the underlying, lifting price even on quiet days. Falling vol and rising price moving together is the vanna rally's fingerprint. Schematic, not a price chart.
What the vanna read showed
The tell is the correlation. In a normal rally, price rises and vol falls because buyers are confident. In a vanna rally, the causation partly runs the other way: vol falls first (uncertainty resolving), and the mechanical hedging of that vol move produces the buying. Net dealer vanna pointing toward "buy as vol drops" is the configuration that turns a vol crush into a grind higher — and November 2020 had it in size.
When implied vol is elevated and set to resolve lower, heavy net dealer vanna is a coiled bid. The rally that follows a vol crush can be driven as much by hedging as by conviction — and it fades when the vanna is spent.
This case study is free. To watch vanna load and release you need the by-strike history — single names via ETF + Equities, full export via Everything.
See plans →Educational content from Nations Indexes. Event facts (the Nov 2020 election, the Nov 9 vaccine announcement, the subsequent volatility decline and equity rally) are historical and verifiable. The role of hedging flows is a widely-discussed characterization; the figure is illustrative, not a price chart, and nothing here is investment advice.