** Shares of industrial giant Honeywell HON.O rise 0.8% at $226 premarket

** Co's quantum computing unit Quantinuum raised $1.68 bln in its U.S. initial public offering

** Broomfield, Colorado-based Quantinuum sold 28 million shares in the offering at $60 each, testing investor appetite for the emerging quantum computing sector

** Honeywell will retain about 48.1% of Quantinuum's combined voting power after the offering is completed

** Quantinuum will begin trading on the Nasdaq on Thursday, under the ticker symbol "QNT"

** As of last close, HON stock up 14.4% YTD