ARQ

Arq is a small-cap activated-carbon maker whose entire bull case rested on ramping its new GAC Facility at Red River to nameplate capacity. That case is now broken on its own terms: after announcing first on-spec commercial volumes in August 2025, management disclosed in December 2025 that ramp-up 'could not be accomplished without further modifications' due to 'design flaws in our GAC Facility,' has 'paused GAC production,' 'idled the Corbin Facility,' and must now switch feedstock from Corbin Wetcake to bituminous coal. In short, the project the company spent heavily to build does not work as designed, the fix is unscoped, and the timeline/cost are unknown — the definition of unknowable risk.

The numbers confirm the stress rather than offset it. FY2025 revenue of $120M (+10.4%) is the only bright spot, but the company posted an operating loss of -$53.0M and a net loss of -$52.6M (operating margin -44.0%), a violent swing that almost certainly embeds impairment/idling charges and dwarfs the modest top-line growth. This is not a one-year blip: net income has been negative every year since FY2022 (-$8.9M, -$12.2M, -$5.1M, then -$52.6M), so the deterioration is accelerating, not stabilizing. Retained earnings collapsed 79% to $13.8M and equity fell 23% to $168M — and that equity is largely the very plant whose recoverability the MD&A flags for impairment testing.