NEW YORK -- Stocks that moved substantially or traded heavily on Friday:
Amarin Corp., up $2.53 to $24.02
RH, up $13.25 to $188.47
Berkshire Hathaway increased its investment in the luxury retailer by picking up 1.2 million shares.
Applied Materials Inc., up $5.10 to $62.06
The chipmaking equipment company gave investors an encouraging profit forecast after reporting solid fiscal fourth-quarter earnings.
Farfetch Ltd., up $2.19 to $9.67
The online luxury goods company’s third-quarter earnings and revenue beat Wall Street forecasts.
Johnson & Johnson, up $3.98 to $134.94
An Oklahoma judge reduced the amount he’s ordering the company pay to help address the state’s opioid crisis by $107 million.
J.C. Penney Co., up 7 cents to $1.17
The troubled department store chain raised its annual profit forecast after reporting narrower losses.
Nvidia Corp., down $5.60 to $204.19
The chipmaker issued a disappointing fourth-quarter revenue forecast.
Arrowhead Pharmaceuticals Inc., down $1.06 to $47.44
The drug developer said its chief operating officer and head of research and development is retiring next year.