Stocks that moved substantially or traded heavily on Friday:

Citigroup Inc., down $4.16 to $40.30

Bank shares plunged as Britain's vote to leave the European Union sparked a global market sell-off.

Exxon Mobil Corp., down $2.41 to $89.39

Oil shares posted steep losses as the price of crude tumbled.

Newmont Mining Corp., up $1.80 to $37.19

Shares in the gold miner soared along with the price of the precious metal.

Duke Energy Corp., up 38 cents to $82.43

Utilities shares fared relatively well as investors sought stable sectors to ride out the market turbulence.

Verizon Communications Inc., down 24 cents to $54.43

Phone companies held up well during the broad market downturn as investors favored high-dividend stocks.

Altria Group Inc., up 71 cents to $67.02

Tobacco companies also held their own following the British vote to leave the EU.

Sonic Corp., down $2.79 to $27.56

The Oklahoma-based restaurant chain predicted sales that were lower than analysts were expecting.

CF Industries Holdings Inc., down $2.21 to $25.43

The company, which makes fertilizers and other products, was among the many basic materials companies to post hefty losses.