* Goldman's charge by the SEC sparks liquidation worries
* Paulson & Co's massive gold positions in focus
* Yuan eyed after talk of floating exchange-rate system
* Coming up: GFMS Platinum/Palladium report on Thursday (Recasts, adds comments, closing prices, changes byline, dateline, previously LONDON)
By Frank Tang
NEW YORK, April 16 (Reuters) - Gold dropped to a 10-day low on Friday, losing 2 percent as investors cashed in long positions after U.S. regulators charged investment bank Goldman Sachs, a leading and commodities player, with fraud.
A wide range of financial markets from Wall Street stocks to commodities sold off after the U.S. Securities and Exchange Commission charged Goldman Sachs Group Inc <GS.N> with fraud over its marketing of a debt product tied to subprime mortgages. [
]Many in the gold market voiced concern over the SEC's allegation that Paulson & Co, a major hedge fund run by billionaire John Paulson, worked with Goldman in creating a collateralized debt obligation.
"Gold may be down because the market believes that Paulson & Co may need to sell some of its gold position," said Joseph Arsenio, managing director of California-based Arsenio Capital Management.
Paulson, one of most notable gold investors, is the biggest owner of SPDR Gold Trust <GLD>, holding 8.4 percent of the world's biggest gold exchange traded fund. The company also owns significant stakes in a number of gold mining companies.
"The market is reacting to Goldman's extensive trading positions across all asset classes and the threat that those markets will all be disrupted as an unintended consequence of this investigation."
Spot gold <XAU=> was at $1,135.10 an ounce at 3:25 p.m. EDT (1925 GMT), down from $1,157.95 late in New York on Thursday.
It was gold's biggest one-day drop since Feb. 4. The metal ended the week more than 2 percent lower, snapping a two-week winning streak.
U.S. June gold futures <GCM0> settled down $23.40, or 2 percent, at $1,136.90 an ounce on the COMEX division of the NYMEX.
Safe-haven demand was absent in gold as the market fretted over further selling related to Goldman and the prospect of tighter financial regulations in metals and commodities, traders said.
"Goldman is one of the biggest players in commodities, so there is fear that there could be some forced liquidation of positions," said Bill O'Neill, partner of New Jersey-based LOGIC Advisors.
Traders said that the Goldman news prompted investors to take profits on gold's rally since it stood at about $1,040 an ounce in early February.
Wall Street stock indexes also fell as much as 2 percent as the Goldman news sharply lowered risk appetite.
"The commodity markets have been closely correlated to rising stock markets, so any derailment of that trend was going to be slightly negative for commodities," said Robin Bhar, an analyst at Credit Agricole.
CURRENCY FLUCTUATION WEIGHS
Analysts said bullion investors were also unnerved by potential currency volatility, after China's President Hu Jintao said the country remained on course to gradually put in place a managed floating exchange rate system. [
]Also knocking gold, the euro slid to a one-week low below the key $1.35 level on Friday, driven by concerns about debt-laden Greece and technical momentum after stronger-than-expected U.S. housing starts data. [
] [ ]Among other precious metals, silver <XAG=> took the lead from gold, and was last at $17.68 an ounce against $18.37.
Platinum group metals also retreated after recent sharp gains. Platinum <XPT=> was at $1,688.50 an ounce against $1,717.50, while palladium <XPD=> was at $528.50 against $542.
The market will be watching a platinum/palladium report due Thursday by respected metals consultant GFMS Ltd.
Close Change Pct 2009 YTD
Chg Close % Chg US gold <GCM0> 1136.90 -23.4 -2.0 1096.20 3.7 US silver <SIK0> 17.675 -0.758 -4.1 16.845 4.9 US platinum <PLN0> 1695.30 -31.00 -1.8 1471.00 15.2 US palladium <PAM0> 531.85 -14.05 -2.6 408.85 30.1 Prices at 3:29 p.m. EDT (1929 GMT) Gold <XAU=> 1135.65 -22.30 -1.9 1096.35 3.6 Silver <XAG=> 17.68 -0.69 -3.8 16.84 5.0 Platinum <XPT=> 1688.50 -29.00 -1.7 1465.50 15.2 Palladium <XPD=> 529.00 -13.000 -2.4 405.50 30.5 Gold Fix <XAUFIX=> 1151.50 -5.50 -0.5 1104 4.3 Silver Fix <XAGFIX=> 18.35 8.00 0.4 16.99 8.0 Platinum Fix <XPTFIX=> 1708.00 12.00 0.7 1466 16.5 Palladium Fix<XPDFIX=> 532.00 10.00 1.8 402 32.3 (Additional reporting by Robert Gibbons in New York, Jan Harvey and Rebekah Curtis in London; Editing by David Gregorio)