A two-layer put-call construction for intermediate market conditions

Why the raw ratio is not enough

A raw equity put-call ratio describes crowd mood but does not, by itself, specify when to enter a trade. The daily equity put-call ratio is computed as total put volume divided by total call volume across options exchanges, and it is used as a crowd-sentiment input rather than a standalone trade trigger.

The construction uses an exponentially smoothed equity put-call series together with a volume-weighted oscillator to locate intermediate tops and bottoms. Editorial framing: read the two pieces in order. The smoother maps crowd extremes. The oscillator times when that baseline is most useful.

The slower regime line

Exponential smoothing turns raw daily put-call ratios into a slower regime line. The smoother is seeded with a 10-day simple average of daily put-call ratios, then updated as 80 percent of the prior exponential average plus 20 percent of the latest daily ratio.

In the source construction, an exponential average below 0.39 is treated as a bearish parameter and an average above 0.47 as a bullish parameter. Those readings are not standalone signals.

The volume-weighted timing layer

The oscillator layer subtracts a 0.44 center from the daily put-call ratio and then multiplies the residual by total put-plus-call volume, scaled by 1000. That volume-weighted oscillator lets large-participation days dominate the timing layer.

A defined-risk expression of the contrarian view

The contrarian strategy fades crowded option demand only when the smoothed ratio sits at an extreme and the volume-weighted oscillator spikes. The view is then expressed with deep out-of-the-money credit spreads.

Those deep out-of-the-money credit spreads are a defined-risk short-option structure. They are used so a delayed or incomplete reversal still leaves room if the prior intermediate trend continues.