Auto-anchor recalibration: when your grid bot chases a trending market

W12 Post 1 — Auto-anchor recalibration: when your grid bot chases a trending market Grid trading works beautifully in sideways markets. It quietly breaks in trending ones — not with an error, but with silence. The Problem With Static Anchors A grid bot works by placing buy orders below the current price and sell orders above it, at fixed intervals. The pivot point of that structure is the anchor — the reference price around which the grid is centered. Set the anchor once and forget it. That's the standard advice. It works fine until the market moves. ETH spent several days consolidating around $2,200. My three grid bots (Arbitrum, Base, Linea) were anchored around $2,200. Then this morning, ETH ran to $2,255 — a ~2.5% move in a few hours. From the bot's perspective, nothing broke. No errors. No stop-loss. It just... stopped being useful. When the price exceeds the top of your grid, you have no more sell orders to place. The bot sits at level 7 out of 8, waiting for a retracement that m