"We already know the Middle East is unstable and that Russia is sending an aid convoy to Ukraine, so this is all the continuation of a longer-term issue that has been boiling for a long time," Malcolm Polley, president and chief investment officer of Stewart Capital Advisors in Indiana, Pennsylvania, told Reuters.
Shares of Kate Spade tanked, last down 25.7 per cent to US$28.90 after rising as high as US$42.87 earlier in the day, as concern about shrinking margins overshadowed better-than-expected revenue.
On a post-earnings conference call on Tuesday, the company said it expects 2014 gross margins to decline 125 to 175 basis points from a year earlier, Reuters reported.
An auction of US three-year notes drew solid demand for safe-haven assets, reflecting concern about the impact of conflict in the Ukraine, Iraq, and Gaza.
"You'll see a lot of demand stemming from geopolitical events," Aaron Kohli, an interest-rate strategist at BNP Paribas in New York, a primary dealer, told Bloomberg News. "Investors are worried about the instability."
In Europe, the Stoxx 600 ended the day with a 0.2 per cent decline from the previous close. The UK's FTSE 100 inched 0.01 per cent lower, France's CAC 40 dropped 0.9 per cent, while Germany's DAX sank 1.2 per cent.
In Germany, a report showed investor confidence weakened for the eighth month in a row. The ZEW index of investor and analyst expectations plunged more than expected, sliding to 8.6 in August, from 27.1 in July. The euro weakened against the US dollar and the Japanese yen as a result.
"The drop in the ZEW index confirms the near-term downside risk for the German and euro-zone economies emanating from the Ukraine crisis," Christian Schulz, senior European economist at Berenberg Bank in London, told Bloomberg News. "The 'Putin factor' could lead to more cautious investment plans for a while."