Japan's radical monetary policies has created the most volatile government bond market in the world, analysts say.
The S&P and Dow closed at fresh all-time highs on Tuesday after widely followed hedge fund manager David Tepper said he is "definitely bullish" on stocks.
The 5.4 percent earnings yield is considerably below its historical average, but nearly triple the 1.9 percent yield of the 10-year Treasury.
The strong rally this year is being met with a heightened level of supply, setting up a big bet that retail investors will keep buying what Wall Street is selling.
U.S. stock index futures signaled a lower open on Tuesday, as fears that China's central bank will not provide stimulus to boost its economy saw the Shanghai Composite fall to a one-week low.
Shanghai stocks fell to a one-week low on Tuesday amid fears that the People's Bank of China would not provide monetary stimulus to support the economy while Asia's other equity markets were mixed ahead of Australia's budget release.
European shares pared losses to close at five-year highs on Tuesday, after influential hedge fund manager David Tepper told CNBC he is "definitely bullish" on stocks.
Brent crude oil prices fell after a global energy watchdog described world supplies as "comfortable" and analysts forecast a continued build in the U.S. crude inventory, while gasoline rose 1 percent on expected inventory draws ahead of the summer driving season.
Australian stocks approached their highest levels in nearly five years on Wednesday after China's trade balance swung to a surplus in April while Japan's benchmark Nikkei remained the region's out performer, extending gains to hit a fresh near five-year high.
U.S. Treasurys prices rose on Wednesday, ending a three-day losing streak as yields near the upper end of their recent range drew some buyers.
U.S. Treasurys prices reversed the previous day's slide as U.S. stock markets appeared poised for a lower opening.
Asian stocks widened losses on Thursday as investors worried over rising inflationary pressures in China, but South Korean shares rallied over 1 percent after the Bank of Korea surprised markets with a 25 basis point cut.
Gold fell 1 percent on Monday as stronger U.S. retail sales data inspired economic hopes and reduced the safe-haven bid for gold.
Stocks finished near their best levels Tuesday, with the S&P 500 extending its recent rally to a fresh high and the Dow closing above the 15,000 milestone for the first time.
The U.S. dollar skyrocketed to its highest level against the Japanese yen in over four years on Thursday, piercing the key technical and psychological 100 yen-per-dollar mark.
Gold prices settled lower on Tuesday, as economic optimism and another intraday record high in U.S. equities sapped bullion's safe-haven appeal.
Germany joins the U.S. at an historic high. France, Portugal and Japan also log good numbers as stocks continue to win in the hunt for yield.
Brent oil steadied above $104 a barrel on Wednesday, recovering from earlier losses after data from China showed crude imports by the world's No.2 consumer rose in April.
Crude prices ended the session mixed, as rising fuel supplies and faltering demand pointed to a growing surplus of oil worldwide.
European shares closed higher following some better-than-expected earnings reports, and upbeat manufacturing data from German.
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.