03:40 PM EDT, 07/21/2026 (MT Newswires) -- Healthcare stocks advanced late Tuesday afternoon with the NYSE Healthcare Index rising 0.6% and the State Street Health Care Select Sector SPDR ETF (XLV) adding 0.4%.

The iShares Biotechnology ETF (IBB) climbed 1.3%.

In corporate news, Novo Nordisk ( NVO ) sued rival Eli Lilly ( LLY ) in the US over alleged "misleading" advertising campaigns for its obesity and diabetes drugs that compete with the Danish drugmaker's products. Novo shares fell 0.7%, and Lilly rose 1.7%.

Danaher ( DHR ) raised its full-year profit guidance as fiscal Q2 results came in stronger than expected. The company lowered the top end of its 2026 revenue growth outlook, and the shares fell 11%.

Okyo Pharma ( OKYO ) shares rose 5.8%. Chairman Gabriele Cerrone increased his stake in the company to 10.9 million shares, or 20.5% of the issued shares, with the purchase of 25,000 shares at $1.40 each.

MapLight Therapeutics ( MPLT ) is seen having meaningful upside in the ML-007 Phas2 2 schizophrenia trial readout with data expected in mid-August, UBS Securities said. MapLight shares rose 4.1%.