09:14 AM EDT, 03/18/2025 (MT Newswires) -- Health care stocks were flat to higher premarket Tuesday with the iShares Biotechnology ETF (IBB) inactive and the Health Care Select Sector SPDR Fund ( XLV ) recently up 0.1%.

Harrow (HROW) shares rose past 24% after the company said it expects revenue for the quarter ended Dec. 31 of between $65 million and $67 million, exceeding analysts' expectations.

STAAR Surgical ( STAA ) said it has named former chief financial officer Deborah Andrews its interim finance chief, effective immediately. STAAR Surgical ( STAA ) shares were up over 2% pre-bell.

Summit Therapeutics ( SMMT ) said it has appointed Robert LaCaze as chief commercial officer. Summit Therapeutics ( SMMT ) shares were over 1% higher pre-bell.