[BRIEFING.COM] The major averages remain mixed at midday.
Biogen (BIIB 234.33, +8.62, +3.82%) is one of the best-performing S&P 500 sectors today after being upgraded to Overweight from Neutral at JPMorgan, with a target price of $300.
The health care sector (+0.3%) trades modestly higher, but is held back by some weakness in biotechnology stocks, with the iShares Biotechnology ETF down 0.7%.
Bristol-Myers (BMY 57.28, -1.84, -3.11%) has reversed a solid opening gain that followed positive Phase 3 readouts for RYZ101 and admilparant strengthened two differentiated growth opportunities as the company prepares for further legacy-product erosion.