Honeywell reports $6.6B gain from Quantinuum deconsolidation after quantum computing spinoff goes public

Honeywell just posted one of the most eye-catching line items you’ll see on an earnings report this quarter: a $6,629 million gain. That’s not from selling more thermostats or jet engine parts. It’s from letting go of its quantum computing subsidiary, Quantinuum, which went public on Nasdaq on June 4 under the ticker QNT. The gain, recorded in Honeywell’s second-quarter 2026 results, is a one-time accounting event triggered by the deconsolidation of Quantinuum from Honeywell’s financial statements. When a parent company loses majority control of a subsidiary, US GAAP rules require it to mark the remaining stake at fair value, and if that fair value exceeds the book value, you get a gain on paper. What the numbers actually look like The $6.6B windfall pushed Honeywell’s GAAP diluted earnings per share to $17.83 for Q2. Adjusted EPS came in at $4.52, which represents a 4% decline year-over-year. Honeywell’s consolidated sales for the quarter hit $9.72 billion, a 4% increase from the prior year, with a segment margin of 23.1%. The Quantinuum IPO debuted on Nasdaq at an IPO price of $60 per share, then opened trading at $68, a 13.3% pop on day one. That valued Quantinuum at approximate...