Monday's Winners & Losers: Dollar Thrifty

Getting slashed to sell at UBS were credit-card companies Discover (DFS Quote), down 9.2%; Capital One (COF Quote), down 7.3%; and American Express (AXP Quote), which lost 3.1%. UBS also cut Spain-based Banco Santander (STD Quote) to neutral from buy, prodding shares down 2.2% to $17.64.

Elsewhere in the red, Keefe Bruyette & Woods (KBW Quote) stock traded down 6.3% to $27.01 ahead of tomorrow's scheduled earnings report.

Car rental company Dollar Thrifty (DTG Quote) lost 36.8% to $16.45 after slashing 2007 guidance Friday after the close. The Tulsa, Okla.-based company now predicts adjusted earnings ranging from 90 cents to 95 cents a share, down from a previous forecast of $1.75 to $1.85 a share. Analysts polled by Thomson Financial have been expecting a profit of $1.82 a share.

Shares of Austin, Texas-based semiconductor company SigmaTel (SGTL Quote) skyrocketed 64.3% to $2.94 on news that privately held Freescale Semiconductor will buy the company for $110 million, or $3 a share in cash.

Tech stocks were down modestly as investors mulled over Microsoft's(MSFT Quote) unsolicited bid for Yahoo!(YHOO Quote) and await Cisco's earnings later this week.

Shares of Yahoo! continued to gain after Microsoft offered $44.6 billion, or $31 a share, for the company Friday. Yahoo was up 95 cents, or 3.4%, to $29.33. Shares of Microsoft were down 26 cents, or 0.9%, to $30.19.

Cisco(CSCO Quote) fell $1.12, or 4.5%, to $23.82 ahead of the company's second-quarter earnings Wednesday.

Analysts polled by Thomson Financial are expecting EPS of 38 cents in the second quarter on $9.79 billion in revenue, compared with EPS of 33 cents on $8.43 billion in revenue a year ago. For the third quarter, analysts expect earnings of 39 cents a share on $10.19 billion in revenue, compared with earnings of 34 cents a share on $8.86 billion in revenue.