Japanese stocks, other Asian markets down

Japanese stocks took a dive on Tuesday, a day after the Dow had its worst Christmas Eve ever, and benchmarks in Thailand and Taiwan were down as well, AP reports.

Why it matters: This is not just a problem for U.S. markets, and it doesn't bode well for when they reopen — or for other world markets. (Markets in Europe, Australia, Hong Kong and South Korea were also closed for Christmas, per AP.)