Another week ends, meaning another week of gains and record-setting levels for the Dow Jones and the S&P 500.

Wall Street is reacting to comments from Federal Reserve Chair Janet Yellen. Paul Nolte, a senior vice president and portfolio manager at Kingsview Asset Management, said Yellen's comments were positive and a signal for the future.

"She's telling financial markets, 'Don't worry, be happy,' we're going to keep interest rates low," Nolte told CNBC.

The Dow Jones industrial average closed at 16,947.08, a 25.62-point change and a record. For the week, it was up 1 percent.

The S&P 500 also hit a record, closing at 1,962.87. For the week, it was up 1.4 percent. Energy stocks were among the best performers. It was the S&P 500's 22nd record close this year.

The NASDAQ gained 8.71 points to close at 4,368.04. For the week, it was up 1.3 percent.

For every three stocks that fell, about four rose Friday on the New York Stock Exchange. On Friday, 1.2 billion shares were traded.

Blackberry (BBRY) shares rose heavily Friday, gaining nearly 8 percent. Over 67 million of its shares were traded Friday. Year to date, the stock is up 31.85 percent.

GW Pharmaceuticals (GWPH) was up big as well Friday, up about $6 to close at $93.17. The UK-based company is finding ways to use medical marijuana as a treatment for patients battling cancer.

Sirius XM Holdings (SIRI) was down over 2 percent Friday, falling to $3.39 a share. The satellite radio company is doing well, gaining more subscribers, and many of its radios come preinstalled in new cars.

Gold and oil continued to rise. Oil barrels for July delivery rose to $107.26 a barrel. An ounce of gold for August delivery rose to $1,316.60 an ounce. It is gold's highest level since April.