Echo Index archive
The week of 17 August 2026
BCH is rhyming with 2018 ETCUSD — its precedents went bullish
This is the most recent published reading. The live Echo Index page always shows it alongside this week’s spotlight and proof ledger.
What this reading said
On 17 August 2026, Chart Echo measured 420 liquid stock and crypto charts against the historical archive. Each chart’s most recent 90 daily closes were matched against decades of price history, and the closest precedents were read for what they did next. That week, 67% of measured charts had precedent sets that leaned bullish, 19% leaned bearish, and 13% came back split.
The precedents behind it
Spotlight: BCH
BCH’s window most closely resembled ETCUSD (2018-11-06 → 2019-02-03), a 74% match. Across its 25 closest precedents, 68% resolved up and 28% down, with a median move of +55.25%.
Where the archive disagreed: CC
CC’s window most closely resembled OXYUSD (2021-10-19 → 2022-01-16), a 74% match. Across its 25 closest precedents, 48% resolved up and 48% down, with a median move of +1.21%.
Reading this in hindsight
This page is a permanent record of what the archive said at the time — it is not updated as the market resolves. That is the point: a precedent-based reading is only honest if it stays fixed after publication. A high bullish share was never a forecast that the market would rise; it recorded that most measured charts resembled history that had risen. Method and limits are documented in Methodology & limits.