Definition. Binary CDD is an oscillator that measures how persistently the market is destroying more coindays than usual. Rather than tracking the magnitude of Coin Days Destroyed, it scores each day as above-average (1) or below-average (0) and averages the result over the trailing week (orange columns), with readings below 0.3 highlighted in blue and full readings of 1 highlighted in red. Price is shown in grey.

Technical. The oscillator is built on Supply-Adjusted CDD, which normalizes coinday destruction by the circulating supply:

• Binary CDD = sma(if(Supply-Adjusted CDD > its expanding all-time average, 1, 0), 7)

Each day scores 1 when supply-adjusted CDD exceeds its cumulative mean; the 7-day average maps the result onto a 0-1 scale, where 1 means every day of the past week saw above-average destruction. The blue (< 0.3) and red (= 1) columns simply highlight the regime extremes.

Interpretation. Sustained high readings — a full week of above-average coinday destruction (red) — indicate that old coins are being spent persistently, behavior characteristic of distribution by experienced holders and historically clustered around heated market phases and macro inflection points. Low readings (blue) mark quiet lifespan expenditure: older supply is dormant and holding behavior dominates, as is typical of accumulation phases. Because the binary transform ignores magnitude, a single whale moving a very old stash does not dominate the signal; it responds instead to the persistence of elevated spending, making it a useful regime filter alongside magnitude-based CDD views.

Notes. Built from Supply-Adjusted CDD. The same binary construction applied to Liveliness is charted at Binary Liveliness; magnitude-based views include Lifespan CDD Momentum and Long- and Short-Term Holder CDD.