Check out the companies making headlines in midday trading: KULR Technology Group — The space technology company skyrocketed more than 26% after it bought 217.18 bitcoin worth about $21 million. KULR plans to allocate up to 90% of its surplus cash to bitcoin, borrowing a page from MicroStrategy's playbook. Honda — U.S.-listed shares rallied 4%, continuing to advance after the automaker announced official merger talks earlier this week with fellow Japanese automaker Nissan. Crypto stocks — Stocks tied to the price of bitcoin cut earlier losses but remained under pressure with the cryptocurrency. Broadcom — Broadcom shares gained nearly 3% to build on a strong year-to-date and December rally.

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Persons: ROE, Stocks, Donald Gardner, Gardner beneficially, — CNBC's Pia Singh, Tanaya Macheel, Jesse Pound, Sean Conlon, Samantha Subin Organizations: KULR Technology, Honda, Nissan, Toyota, Nikkei, South, GameStop, Miners Mara Holdings, Broadcom, Biosciences Locations: Honda — U.S