

Interactive Brokers reached new all-time highs on Mandelbrot’s chart. He tied the move back to his August 17 thesis: customers pay thousands to tens of thousands in annual fees, margins exceed 70%, and rates remain sticky.

Mandelbrot posted a dedicated ZEC visual as the recovery accelerated. The minimal caption — “$ZEC” — let the chart carry the call, immediately before his sequence of previous-ATH updates.

As the old high came into play, Mandelbrot joked, “Ok put the infinite supply back away, we are retesting previous ATH.” The line marks a sharp sentiment turn: dilution anxiety was shelved, at least tactically, in favor of watching price challenge the prior record.

A companion chart reinforced the same ZEC level from another view. Mandelbrot’s language remained direct: the previous all-time high was no longer merely approaching; it was being retested.
Mandelbrot replied “Thanks for playing?” to another trader’s stated small ZEC short from $840 ahead of the Grayscale ZEC ETF debut. The quoted trader framed it as effectively short ZEC/BTC and cited a ratio near 10–11x versus roughly 5–6x year to date; those position details belong to the quoted trader, not Mandelbrot.