AmEx, Apple, Assured Guaranty, UAL are big movers

NEW YORK—Stocks that moved substantially or traded heavily Tuesday on the New York Stock Exchange and Nasdaq Stock Market:

NYSE

American Express Co., down $2.91 at $37.99

The credit card company's quarterly profit tumbled well below estimates as it set aside more money to cover souring loans.

Wachovia Corp., up $3.61 at $16.79

Charges and reserves for bad mortgages caused a $9 billion loss, though shares of the bank rose on hopes the worst is over.

Texas Instruments Inc., down $4.17 at $24.35

Weak sales of cell phone chips and slower orders from distributors caused the technology company to miss second-quarter Wall Street estimates.

Assured Guaranty Ltd., down $7.43 at $11.32

The bond insurer expects a drop in earnings, excluding some items, and a ratings agency put its credit on review for a possible downgrade.

Domino's Pizza Inc., up $2.24 at $12.63

Quarterly profit soared from a period that was hurt by one-time items, and the pizza chain operator said it is cutting costs amid a U.S. slowdown.

UPS Corp., up $2.65 at $62.11

The world's largest shipping carrier said profit fell 21 percent on higher fuel costs and weaker volume, though easing oil prices helped the shares.

NASDAQ

Apple Inc., down $4.27 at $162.02

While sales and profit beat estimates, the computer, iPod and iPhone maker gave a weaker-than-expected outlook for the current quarter.

UAL Corp., up $3.42 at $8.41

A drop in oil prices boosted the shares, as fuel is one of an airline's biggest costs, offsetting its report of an almost $3 billion loss.