By Toni Vorobyova
LONDON (Reuters) - The FTSE 100 fell on Monday, with miners hit by weak data from top metals consumer China and with political jitters in Italy and the United States hurting broad investor sentiment.
Fresnillo, Glencore Xstrata and Anglo American were each down more than 3 percent after Chinese data unexpectedly pointed to a near-stagnation of private sector factory activity.
Monday's market retreat was broad, however, with around 85 percent of blue-chip stocks in the red. The FTSE 100 was down 45.04 points, or 0.7 percent, at 6,467.62 points by 1444 GMT, continuing its retreat after closing below a key technical support at the 50-day moving average on Friday.
"It's very difficult if you are managing money to know whether you should be jumping out or holding fire," said Mike Franklin, head of investment strategy at Beaufort Securities.
"There is potential downside on the FTSE 100 of about 4 percent from Friday's close, purely on the technicals."
The sudden departure of five Italian centre-right ministers over the weekend left the government only formally in place, rattling markets and raising the possibility of new elections.
Chances looked slim that Republicans and Democrats will strike a deal on funding the federal government before the fiscal year ends at midnight on Monday, raising the prospect of a gradual government shutdown. Politicians need to reach another deal, on raising the debt ceiling, later this month or the United States will default on some obligations.
"The biggest concern is the potential knock on it might have on the debt ceiling negotiations as well. If the government is in shutdown mode that probably doesn't help the chances of that being sorted out," said Stephen Walker, head of equities research and market strategy at Ashcourt Rowan.
"Short term, there is certainly the potential that things get a little bit worse ... so if I was sitting on the sidelines in cash, I would be a bit reluctant to launch into the market."
Longer term, strategists at JP Morgan said that companies exposed to the recovering British economy should outperform, while the broader FTSE 100 may lag its European peers.
"UK has a big chunk in the telecoms, utilities and energy and we don't like those three sectors, we think they are not likely to grow. UK is more of a defensive market than cyclicals so we are more into the euro zone," said Emmanuel Cau, equity strategist at JP Morgan.
(Additional reporting by Tricia Wright; Editing by Catherine Evans)