SeaDrill, Pitney Bowes, Lennox, American Airlines and 1-800-Flowers are big market movers

Stocks that moved substantially or traded heavily Monday on the New York Stock Exchange and the Nasdaq Stock Market:

NYSE

SeaDrill Ltd., up $1.09 to $11.83

The offshore drilling contractor's battered stock advanced as the price of oil has recently risen on expectations of lower supplies.

Pitney Bowes Inc., down $1.72 to $22.26

The mailing equipment and software company reported a drop in fourth-quarter profit on lower revenue and restructuring charges.

Exxon Mobil Corp., up $2.16 cents to $89.58

The oil company reported a drop in fourth-quarter profit because of an overall drop in oil prices, but the results still beat expectations.

Lennox International Inc., up $2.05 to $100.36

The maker of furnaces, air conditioners and other products reported better-than-expected fourth-quarter results.

Nasdaq

American Airlines Group, down 36 cents to $48.72

The airline's stock fell as the price of oil extended Friday's gains on expectations of lower supplies.

1-800-Flowers.com Inc., up $1.15 to $9.04

The flower and gift retailer reported better-than-expected second-quarter profit and issued an upbeat outlook.

Lululemon Athletica Inc., down 72 cents to $65.52

Chip Wilson, founder of the yoga clothing company, resigned from its board less than a year after stepping down as chairman.

YOU On Demand Holdings Inc., up 41 cents to $2.46

The Chinese video-on-demand company entered into a licensing deal with Twentieth Century Fox Television Distribution in China.