Bitcoin Faces $85,000–$87,500 Supply Test After $80,000 Rebound

TL;DR: Glassnode’s October 21 report identifies an overhead Bitcoin supply zone around $85,000–$87,500 after bids returned near $80,000. Its levels describe a market structure, not a guaranteed price path. Bitcoin’s rebound has brought it back toward a cluster of holders, sell orders and leveraged positions that could make the next leg harder to sustain. In its latest Week Onchain report , Glassnode places that area at roughly $85,000 to $87,500. The research follows Bitcoin’s October 15 dip toward $80,000 and the subsequent return of bids around that level.