* TSX ends down 203.61 points, or 1.1 pct, at 11,849.50
* Nine of 10 index sectors weaker, golds fall hard
* Agnico sinks 18 pct after halting Quebec mine (Adds RIM, RIO Tinto bid for Hathor, comments)
By Claire Sibonney
TORONTO, Oct 19 (Reuters) - Canadian stocks lost all of the previous day's big gains and more on Wednesday as a pessimistic outlook from the U.S. Federal Reserve, euro zone bailout doubts, and an earnings miss by U.S. tech darling Apple prompted investors to cut risk.
The Fed's coast-to-coast survey said that while the U.S. economy kept growing slightly in September, its prospects appeared to be dimming. [ID:nW1E7KM02O]
The news drove down commodity prices that were already under pressure from a Moody's downgrade of Spain's sovereign credit rating earlier in the day, which further complicated the euro zone debt crisis.
Oil and copper prices dropped and gold's safe-haven status didn't prevent it from being hit. [GOL/]
Among the heaviest laggards on the TSX were gold miners, which skidded 5.5 percent. Barrick Gold ABX.TO lost 4.4 percent to C$45.68 and Goldcorp G.TO was down 5.1 percent at C$45.34.
"In the short term, gold is a risky asset just like any other ... when traders are nervous, they start selling everything," said Aaron Fennell, a futures specialist at ScotiaMcLeod.
Rounding out the top three most heavily weighted decliners, gold miner Agnico Eagle AEM.TO sank 18.3 percent to C$47.35 after announcing it is indefinitely suspending mining operations at its Goldex mine in Quebec due to water inflow and ground instability. [ID:nL3E7LJ1GZ]
Also knocking market confidence was a mixed bag of U.S. earnings reports. Apple Inc's AAPL.O results late on Tuesday missed estimates for the first time in years as it sold far fewer iPhones than expected, sending its shares down more than 5 percent on Wednesday. [ID:nN1E79H1T6] [.N]
The Toronto Stock Exchange's S&P/TSX composite index .GSPTSE ended down 203.61 points, or 1.69 percent, at 11,849.50. Nine of the 10 sectors were weaker, while health care gained 0.4 percent.
"The whole euro thing is minute to minute depending on which minister says what and the glass is half full or half empty at any point in time," said Paul Hand, managing director at RBC Capital Markets.
The TSX rallied 1.1 percent on Tuesday after a story in Britain's Guardian newspaper said that France and Germany had reached a deal to expand the euro zone's rescue fund to more than 2 trillion euros. On Wednesday, however, French President Nicolas Sarkozy said talks with Germany had stalled. [ID:nL5E7LJ3W7]
In Greece, center of the debt storm, black-clad demonstrators hurled stones and fire bombs at police in front of parliament as tens of thousands rallied during a nationwide general strike to coincide with a parliamentary vote on painful new austerity measures. [ID:nL5E7LJ05J]
In individual company news, global miner Rio Tinto RIO.AX entered the battle for Canadian uranium explorer Hathor Exploration HAT.TO with a C$578 million ($572 million) friendly takeover offer that topped a hostile bid by Cameco Corp CCO.TO, one of the world's biggest uranium producers. [ID:nN1E79I0RJ]
Hathor shares surged 9.2 percent to C$4.40, while Cameco lost 4.6 percent to C$20.52.
Research In Motion RIM.TO fell 3.4 percent to C$22.78, a day after unveiling a souped-up operating software for its BlackBerry smartphone and PlayBook tablet. [ID:nN1E79H0ZF]
($1=$1.01 Canadian) (Editing by Jeffrey Hodgson)