Stocks reverse course, selloff continues

NEW YORK (CNNMoney.com) -- Stocks briefly rebounded from one of its worst sessions of the year before moving mostly lower, as Wall Street remained troubled about the state of credit markets despite a better-than-expected employment report.

The Dow Jones industrial average (Charts) lost 0.3 percent an hour into the session, while the broader S&P 500 index (Charts) gell 0.4 percent.

The tech-laden Nasdaq (Charts) bucked the trend, gaining just 0.1 percent.

Just a day earlier, major gauges plunged on those credit market fears, which were sparked by an analyst downgrade of the banking giant Citigroup (Charts, Fortune 500). The Dow industrials posted its fourth-biggest loss of the year as the 30-stock index fell 362 points.

Those problems remained in focus following troubling news from the nation's largest brokerage Merrill Lynch (Charts, Fortune 500), whose shares tumbled over 7 percent on the New York Stock Exchange.

The Wall Street Journal reported Friday that No. 1 U.S. brokerage firm Merrill Lynch (Charts, Fortune 500) engaged in deals with hedge funds that may have been aimed at delaying the recognition of losses on its subprime mortgage investments.

The paper reported the Securities and Exchange Commission is likely to look at those arrangements.

Also weighing on Merrill shares were comments from Deutsche Bank analyst Michael Mayo, who downgraded his rating of the company's stock and estimated that Merrill would suffer an additional $4 billion in writedowns in the coming quarter due to this risky investments on mortgage securities.

All told, Mayo said he anticipated another $10 billion in writedowns in the fourth quarter.

Other major financial players such as Goldman Sachs (Charts, Fortune 500), Morgan Stanley (Charts, Fortune 500), Bank of America (Charts, Fortune 500) and Wachovia (Charts, Fortune 500) were down sharply on the news, while the AMEX securities broker/dealer index (Charts) was down over 3 percent.

The better-than-expected October employment report was not enough to sustain stocks' initial bounce. The reading which came in more than double what was originally forecast, while the unemployment rate held steady at 4.7 percent.

Both economists and Wall Street were closely watching the report for any signs whether this summer's mortgage crisis had spilled over to the broader economy.

On the earnings front, Chevron (Charts, Fortune 500) said its quarterly earnings tumbled 26 percent - more than Wall Street had expected - hurt by tighter refining margins.

Media conglomerate Viacom (Charts) booked better-than-expected results, the company said Friday, helped by the sale of its music publishing business. Viacom shares gained 3.5 percent on the New York Stock Exchange.

Viacom's former corporate sibling CBS (Charts, Fortune 500) posted a better-than-expected gain in earnings after the close Thursday, but its shares slipped slightly in after-hours trading after the negotiating committee of the Writers Guild recommended that writers strike the nation's television networks.

Oil prices rebounded in early trading Friday as the December contract for a barrel of light sweet crude gained 51 cents to $94 a barrel on the New York Mercantile Exchange.

Treasury prices gained, lowering the yield on the benchmark 10-year note to 4.3 percent from 4.36 percent late Thursday.

Gold prices moved modestly higher, as COMEX gold for December gained 30 cents to $794 an ounce.

In overseas trading, stocks sold off around the world Friday. Asian stocks fell sharply, with Japan's Nikkei index dropping 2 percent. Major markets in Europe were lower in morning trading.