NYSE Suspends ESS Tech Trading; Stock Moves to OTC as Delisting Proceeds
Summary
NYSE suspended ESS Tech trading on October 2 and the stock moved to the OTC market under GWHT, adding a second delisting basis (market cap below $15M) to the prior September 24 determination.
Key Events · Legal and Risk Events · GWH
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NYSE Suspends Trading; Stock Moves to OTC
Trading in ESS Tech common stock was suspended immediately on October 2, 2026, and the shares began quoting on the OTC market under ticker GWHT as of October 5, 2026.
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Second Delisting Basis Added
NYSE Regulation cited Section 802.01B — failure to maintain a $15 million average global market capitalization over 30 trading days — separate from the prior September 24, 2026 Section 802.02 determination.
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Company Plans Appeal
ESS Tech intends to request review by the NYSE Board Committee within ten business days of receiving the notice, though no assurance of success is provided.
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Liquidity and Price Risk
The OTC market is significantly less liquid than the NYSE, and the company warns the transition could further depress the trading price of the common stock.
Analysis · GWH · Manufacturing
The NYSE has suspended trading in ESS Tech's common stock effective October 2, 2026, and the shares have transitioned to the over-the-counter market under ticker GWHT. This is a second, separate delisting determination — this one under Section 802.01B for failing to maintain a $15 million average global market capitalization — layered on top of the September 24, 2026 Section 802.02 determination. The company intends to appeal within ten business days, but the immediate suspension and OTC transition materially reduce liquidity and likely depress the trading price further. Against a backdrop of a $5.6 million cash position, a going concern warning, and an October 16 reverse split vote, this delisting accelerates the company's distress trajectory.
How filings like this one have moved
In the 30 days to Oct 5, 2026, 42.7% of the 288 measured filings Wiseek scored 9 moved their stock by 5% or more by the next session's close. The median move was -0.53%. These are measured outcomes after filings of this importance, not a forecast for this one.
Measured one observation per ticker per day, after exclusions. Current figures: Filing Impact Tracker · open dataset
At the time of this filing, GWH was trading at $0.16 on NYSE in the Manufacturing sector, with a market capitalization of approximately $6.3M. This filing was assessed with negative market sentiment and an importance score of 9 out of 10.