Bitcoin slid this week, and the coins that moved on Oct-08 changed hands at almost exactly what they cost: SOPR 1.000. That's the lowest reading since Sep-17, the last day it was under 1.

Under 1 means coins moving at a loss, which is what most days of this summer looked like. Over 1 means profit-taking. Right now it's neither.

The line to watch is a run of days back under 1. Our own ledger, daily, on askthetape.