The S&P 500 rose for the second straight week last week, up 2.3% to 1,093.48 as earnings season began to wind down. The index broke 1,100 in Friday’s trading session, but closed slightly lower.

Pops and drops
Here are the five biggest S&P 500 upticks and five biggest S&P 500 drops of last week (measured Friday close to Friday close):

Winners on the week:

Company

Percentage Gain on the Week

Advanced Micro Devices (NYSE:AMD)

30%

JDS Uniphase

18%

ProLogis

17%

priceline.com (NASDAQ:PCLN)

17%

Abercrombie & Fitch (NYSE:ANF)

16%

Source: Capital IQ (a division of Standard & Poor's).

Losers on the week:

Company

Percentage Loss on the Week

MBIA (NYSE:MBI)

(18%)

Macy's (NYSE:M)

(6%)

Genzyme (NASDAQ:GENZ)

(6%)

Southwestern Energy

(5%)

Sunoco (NYSE:SUN)

(5%)

Source: Capital IQ (a division of Standard & Poor's).

A look at some of the movers
Shares of Advanced Micro Devices soared last week after the chip maker finally came to a settlement agreement with rival Intel in which Intel will pay AMD $1.25 billion. AMD sued Intel in 2005, alleging that Intel, which controls 80% of the chip market, engaged in illegal actions to maintain its stronghold on the global computer market. Following the settlement, Standard & Poor’s Rating Services raised AMD to B- from CCC+.

Many retailers reported earnings last week, including Abercrombie & Fitch and Macy’s. Abercrombie & Fitch saw third-quarter earnings tumble 39%, though the drop was not as steep as expected. Sales also declined 15%. After losing market share to lower-priced competitors, the teen clothing retailer is diversifying its pricing strategy, adding lower-priced merchandise into the mix.

Department store Macy’s raised its full-year earnings guidance; however, the forecast fell short of analysts’ expectations. Macy’s also raised its same-store sales projection for the year, forecasting a smaller decline than initially anticipated. The retailer says its new strategy of customizing stores’ merchandise to regional tastes is helping. The store also clocked a loss of $0.03 per share (excluding restructuring charges) -- narrower than analysts’ expectations.

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Fool contributor Jennifer Schonberger does not own shares of any of the companies mentioned in this article. priceline.com is a Stock Advisor recommendation. Intel is an Inside Value pick. Motley Fool Pro has recommended a bear put spread on Abercrombie. The Motley Fool has a disclosure policy.