Blue Buffalo and HPE climb while RBS and LifePoint drop

Stocks that moved substantially or traded heavily Friday:

Blue Buffalo Pet Products Inc., up $5.88 to $40

The pet food maker agreed to be bought by breakfast food maker General Mills for $40 a share, or $8 billion.

HP Inc., up 74 cents to $22.13

The printer and PC maker reported strong first-quarter results and gave a positive annual forecast.

Hewlett Packard Enterprise Co., up $1.73 to $18.14

The data center hardware maker had a strong first quarter and raised its annual forecasts and its dividends.

BJ's Restaurants Inc., up $4.95 to $43.65

The pizza and beer chain surpassed Wall Street estimates in the fourth quarter.

Vista Outdoor Inc., down 27 cents to $18.15

Money manager Blackrock said it will engage with gun manufacturers about what comes next following the Florida school shooting.

Royal Bank of Scotland Group PLC, down 30 cents to $7.64

The bank said a settlement with U.S. authorities could weigh on its profits in 2018.

LifePoint Hospitals Inc., down $6.95 to $42.75

The rural hospital company took a bigger loss than analysts expected and reported less revenue.

American Electric Power Co., up $1.69 to $67.37

Utilities and other high-dividend companies rose as bond yields retreated from their recent four-year highs.