LONDON -- In the week the Federal Reserve said it is to lop $10 billion a month off its bond-buying, the FTSE 100 (FTSEINDICES: ^FTSE) surprised many observers and came back strongly to end its six-week losing streak. The top London index managed a 167-point gain to end Friday at 6,607 -- and that's the first time it's been above the 6,600 level since Dec. 2.

But we Fools are more interested in individual stocks, aren't we? Here are some of the week's biggest movers.

Carnival (CCL 0.98%)
Full-year results from cruise operator Carnival gave the stock a boost of 225 pence (10.4%) to 2,389 pence.

Fourth-quarter revenue was down 2.1% on the previous year, but that was better than the company's earlier guidance, and revenue for 2014 is now expected to be only "slightly down." The company's brand status does seem to be recovering after the Costa Concordia disaster.

Aggreko (AGK)
Aggreko stock gained 149 pence (9.8%) to end the week at 1,665 pence, after a pre-close trading update told us that full-year results are "likely to be slightly ahead of expectations."

The power and temperature-control rental specialist also said that net debt has fallen by around 200 million pounds, and reminded us that it has been selected to provide the temporary power for the Commonwealth Games and for the FIFA World Cup, both in 2014.

BAE Systems (LSE: BAE)
Aerospace and defense engineer BAE Systems saw its price slip 20 pence (4.5%) on Friday to 422 pence, after a hoped-for deal with the United Arab Emirates fell through. The company had been in talks over a deal involving the supply of Typhoon aircraft, but the UAE says it will not now proceed.

In other news, pricing negotiations over BAE's Salam Typhoon contract with Saudi Arabia have still not been finalized, and further delays could affect earnings per share for this year.

J Sainsbury (SBRY -1.04%)
First-half results in November gave J Sainsbury a boost, after the supermarket chain grew its market share to its highest in a decade -- it was responsible for 16.8% of the U.K.'s groceries market during the period.

But since then, the price has been falling back, dropping 19 pence (4.9%) last week to 379 pence -- that's a 13.5% fall from a peak of 428 pence on Nov. 14, the day after those results were released.

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