LONDON -- It's been another down week for the FTSE 100 (FTSEINDICES: ^FTSE), taking the U.K.'s top index to four weeks of losses in a row. After a fall of a further 186 points this week, the FTSE is now down as low as 6,528 -- which is a disappointing turnaround, since it approached the 6,900 level toward the end of last month.

Here's a look at a few of the movements we had during the week, mostly downwards.

Randgold Resources (LSE: RRS)
We had precious few winners this week, though Randgold Resources, which mines for gold in sub-Saharan Africa, did enjoy a 116 pence (2.4%) rise to 4,996 pence by Friday, after the price of gold rose for the sixth week in a row to reach a six-month high.

Randgold stock is now up 38% since its recent low point in mid-January, but the price is still down around 10% over 12 months.

Wm Morrison Supermarkets (LSE:MRW)
Wm Morrison Supermarkets reported a disappointing 2% fall in full-year turnover, to 17.7 billion pounds, and saw the previous year's pre-tax profit of 879 million pounds wiped out and replaced with a loss of 176 million pounds.

According to CEO Dalton Philips, Morrison is facing a period of "necessary change" and plans to invest a billion pounds over the next three years to get back on track.

The stock fell 29.5 pence (12.4%) to 208 pence on the week.

Security company G4S lost 14.5 pence (5.9%), to finish Friday at 229 pence, after releasing details of its agreement with the U.K.'s Ministry of Justice regarding claims arising from services provided between 2005 and 2013.

G4S is to refund 96.4 million pounds, plus a reimbursement of 12.5 million pounds. In addition, G4S faced its own costs of five million pounds.

Antofagasta (LSE:ANTO)
The mining sector is out of favour again this week, with the mini-recovery that started in early January now almost wiped out.

Antofagasta led the way down with a fall of 46.5 pence (5.4%) to 829.5 pence. The price is now down 14% since the levels of 930 pence achieved in mid-February. But there is a fall in earnings of around a third expected for the year just ended in December -- results are due on March 18.

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