Honeywell completes aerospace spin-off; Honeywell Aerospace begins trading as HONA

Honeywell completed the spin-off of its aerospace business early Monday, creating an independent Honeywell Aerospace that begins trading on Nasdaq under the ticker HONA, while the remaining company is now branded Honeywell Technologies and continues to trade as HON.

The move is a material change for shareholders, analysts and index funds because it completes Honeywell’s plan to break itself into three focused public companies. Investors who owned Honeywell before the separation now hold a different HON than they did before: a standalone automation company, alongside shares in the newly independent aerospace business. The third company, Solstice Advanced Materials, was spun off last year.

Honeywell said the distribution of Honeywell Aerospace became effective June 29 at 12:01 a.m. New York time. Honeywell Technologies, which the company describes as a pure-play automation company, remained listed on Nasdaq under HON. Honeywell Aerospace started trading separately on Nasdaq under HONA on June 29.

For shareholders, the mechanics were straightforward but notable. Investors on record as of the close of business June 15 were entitled to receive one share of Honeywell Aerospace common stock for every two shares of Honeywell common stock they held. Fractional Honeywell Aerospace shares are not being issued, with shareholders instead receiving cash in lieu of fractions.

At nearly the same time, Honeywell carried out a 1-for-2 reverse stock split for Honeywell Technologies, effective at 12:02 a.m. New York time on June 29, contingent on the spin-off. That means brokerage accounts may now show both a new HONA position and a reduced number of split-adjusted HON shares.

Honeywell had about 633.7 million shares outstanding as of March 31, 2026. The reverse split would reduce that to roughly 317 million shares outstanding. The company also cut its authorized common shares proportionally, from 2 billion to 1 billion, and said Honeywell Technologies common stock has a new CUSIP number, 438516205, following the reverse split.

The separation also has immediate market implications beyond existing shareholders. S&P Dow Jones Indices said Honeywell Aerospace will be added to the S&P 500 and the S&P 100 in connection with the breakup, a change that can affect ownership by passive index funds and exchange-traded funds that track those benchmarks.

Honeywell said future financial reporting will also look different. The company plans to present the former Aerospace business, along with the previously spun-off Advanced Materials unit, as discontinued operations and will recast prior-period financial statements accordingly. In practice, that means future results for Honeywell Technologies will be reported as a more narrowly focused automation business rather than as the old diversified industrial group.

The aerospace separation is the final major step in a breakup plan Honeywell first announced in February 2025. The company completed the spin-off of Solstice Advanced Materials in October 2025. With Monday’s transaction, the former conglomerate now stands as three public companies: Honeywell Technologies in automation, Honeywell Aerospace in aviation and defense systems, and Solstice Advanced Materials in specialty materials.

“Today is a defining moment in Honeywell’s legacy,” Vimal Kapur, Honeywell’s chairman and chief executive, said in a statement. “As standalone companies, Honeywell Technologies and Honeywell Aerospace are uniquely positioned to accelerate innovation ... We are confident each company is strongly positioned to create enduring value for decades to come.”