GWH-WT (ESS Tech, Inc. WT NYSE) drops to -15.28 after hours: key risks ahead

After hours on 28 Jan 2026, GWH-WT stock printed an anomalous -15.28 USD level and led the top losers list on the NYSE. Trading volume hit 7,130,490 shares versus an average of 1,261,864, signaling heavy activity in this warrant line. The move follows a collapse from a prior close of 0.0614 USD, and market data show a distorted price print likely tied to warrant adjustments or clearance events. We break down the trading print, key metrics, and what traders should watch next for ESS Tech, Inc. WT (GWH-WT)