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

NYSE

Best Buy Co. Inc., down $1.17 at $25.64

The electronics retailer posted a fiscal first-quarter loss as it sold its stake in Best Buy Europe and works on a turnaround plan.

Beazer Homes USA Inc., down 98 cents at $21.75

A Sterne Agee analyst downgraded the homebuilder's stock to "Neutral" from "Buy" saying that year-over-year growth may slow.

Carnival Corp., down $1.51 at $33.81

The Miami-based cruise company said that steep discounts put pressure on its revenue. It also cut its outlook for the year.

Medtronic Inc., up $2.46 at $52.35

The medical device maker reported better-than-expected fourth quarter earnings on higher sales of implantable heart defibrillators.

Saks Inc., up $1.39 at $13.67

The luxury retailer said that its net income fell 38 percent in the first quarter, but its adjusted results topped expectations.

Nasdaq

Clearwire Corp., up 14 cents at $3.40

Sprint Nextel Corp. raised its buyout offer for the stake in the wireless data operator it does not already own by 14 percent.

Monro Muffler Brake Inc., up $3.17 at $47.28

The auto repair company said that its fiscal fourth-quarter net income fell 23 percent, but its revenue beat expectations.

TiVo Inc., up 26 cents at $12.92

The digital video recording company narrowed its fiscal-first quarter loss as revenue grew from an increase in subscribers.