Implied volatility and price divergence as a sentiment regime filter

A forward-looking sentiment reading

Implied volatility is framed as a forward-looking, emotion-priced estimate of future price change. It is distinct from historical volatility, which is a backward-looking measure of past movement.

In this framework, implied volatility tends to rise as participants become more bearish and pay higher option premiums, and to fall as they become more bullish.

Implied volatility is presented as combining traits of technical indicators and surveys. It can be plotted from observed market prices, yet its level still reflects a collective opinion about future direction.

The inverse pairing as background regime

The baseline theory is that declining implied volatility accompanies a bullish market posture and rising implied volatility accompanies a bearish posture. That pairing holds until the reading becomes so high or so low that sentiment is treated as homogenized and prone to reverse.

That homogenized bullish or bearish posture is the market-sentiment extreme in this workflow. It is inferred when implied volatility becomes unusually high or low and then diverges from price rather than staying inverse to it.

Same-direction swings as the working signal

Divergence here is a chart condition in which price and implied volatility start making swings in the same direction instead of the usual inverse pairing. It is used as a hypothesis that sentiment has reached a temporary extreme.

A bullish sentiment divergence is defined as the underlying making higher lows while implied volatility makes higher highs. That pattern is treated as a pessimistic extreme that may unwind with a rebound in the underlying. It is illustrated between 12/10/03 and 1/4/04 on the SPX-VIX pairing.

A bearish sentiment divergence is defined as the underlying making lower highs while implied volatility makes lower lows. That pattern is treated as an optimistic extreme that may unwind with a decline in the underlying. It is illustrated on IBM from April 2 to April 16, 2004, with confirmation when implied volatility later rose on April 19, 2004.

The same bearish pattern is treated as timeframe-independent. It is illustrated again on weekly IBM from May 11, 2001 to August 10, 2001, after which the stock later declined by $15 over about two months.

From hypothesis to option premium

Once a divergence is identified, the educational examples treat it as a hypothesis that can justify entering with the expected reversal, exiting an opposing position, or selecting an option structure whose premium is expected to reprice as sentiment normalizes.

Option-premium analysis in this setting means reading whether option premiums look inflated or deflated relative to the sentiment extreme, then matching long or short option structures to that premium state.

Buying options after premiums have become deflated is described as reducing the chance of paying an already-stretched premium, because a later rise in implied volatility can increase the option's resale value even if the position must be closed early.