Oil prices tumbled on Wednesday, with Brent crude falling below $98 per barrel as rising U.S. fuel supplies added to overall concern about global oil demand.
A greater-than-usual number of companies have reported disappointing revenue results and tepid guidance this quarter, leading strategists to expect a more volatile time for stocks.
"When I look at copper, it reminds me a lot of gold before that big breakdown," one analyst said.
Gold rebounded to settle at $1,395 an ounce as strong buying of coins and bars continued, primarily in Asia, but prices were still on course for a fourth week of losses after a brutal sell-off.
The stock market was already shaky before two blasts rocked the Boston Marathon. On Tuesday, traders will be seeking answers about who was behind the attacks.
The recent fall in gold prices reflects a loss of faith in quantitative easing measures by central banks in the West, says one strategist.
Brent crude sank to a nine month low, extending a recent rout triggered by data from China and the United States that weakened the outlook for demand.
Traders are watching for technical signs that the market is reaching its limit. The answer should be revealed in the next few days.
The market often falls more rapidly than it rises. Gold's fall towards $1,260 may happen in several weeks.
Oil futures rose above $100 a barrel on Monday, extending the two previous sessions' gains as prices drew buyers back into the market following sharp drops earlier in the month.
The recent plunge in gold prices could be a silver lining for this Asian country, which is the largest consumer of the precious metal. Find out why.
Brent crude oil jumped by more than a dollar to trade above $99 a barrel, snapping a six-session losing streak, with dealers saying it looked oversold after losing 10 percent this month.
Gold rose after physical buyers of bullion grabbed the chance offered by the previous session's record-breaking one-day drop, but investors expected more falls.
The yen hovered near the key level of 100 to the dollar on Monday after major industrialized nations gave their stamp of approval to a massive Japanese easing program.
U.S. Treasurys prices slid on Tuesday as a safety bid in the previous session faded, though yields remained low as investors weighed the Federal Reserve's easing options for the rest of the year.
The yen weakened to within striking distance of the 100-level against the U.S. dollar on Monday, yet breaking that key psychological barrier is proving to be hard.
The yen tumbled against the dollar and euro Tuesday, reversing the previous session's sharp gains as investor anxiety triggered by a record plunge in gold prices eased.
U.S. Treasurys prices edged down on Friday after a two-day rally left yields near four-month lows and investors turned to battered stocks.
Asian stock markets pared back some of their losses on Tuesday, after they were initially hurt by a sharp sell-off in commodities and concerns about the outlook for growth in the world's biggest two economies.
This week's sell-off in global financial markets, which has spared few asset classes, may well reflect investors reassessing their outlook for the global economy.
European shares were flat on Friday as talks over the "fiscal cliff" stalled.
European shares closed lower on Wednesday for a third consecutive session, with resurging worries about the global economic outlook undermining investor sentiment.
Standard & Poor's decision to cut Spain's credit rating to one notch above junk status is weighing on markets.