Activist investor and major Apple Inc shareholder Carl Icahn said the iPhone maker's stock should be trading at $216, far above its record high of $124.92 hit on Wednesday.

The S&P 500 index finished unchanged on Wednesday as investors were reluctant to make big bets while they waited for the outcomes of major talks involving Greece and Ukraine, but Apple helped boost the Nasdaq after an activist investor's bullish comments.

Asian stock markets turned cautious on Wednesday while the U.S. dollar crept higher as looming euro zone meetings to discuss the Greek debt crisis threatened to produce more confusion than clarity.

Asian stock markets were subdued on Wednesday while major currencies barely budged as looming euro zone meetings to discuss the Greek debt crisis overshadowed a firmer finish on Wall Street.

Coca-Cola Co (KO.N) reported a slightly higher-than-expected profit on Tuesday as sales in North America, its biggest market, rose for the first time in four quarters, offsetting the impact of a stronger dollar on its overseas business.

Asian markets got off to a cautious start on Wednesday as looming euro zone meetings over Greece overshadowed a firmer finish on Wall Street.

Apple Inc (AAPL.O) will buy about $850 million of power from a new California solar farm to cut its energy bill, the iPhone maker said on Tuesday as its stock market value closed above $700 billion for the first time.

Commodity price-dependent currencies such as the Australian dollar and Norwegian crown were the main movers on major foreign exchange markets on Tuesday, gaining up to a third of a percent on talk of more economic stimulus in China.

Asian equities slipped on Tuesday as nervousness over Greece potentially withdrawing from the euro and escalating conflict in Ukraine sapped risk appetite, while the dollar lost steam after its payrolls-inspired rally.

U.S. stocks fell on Monday as investors worried about Greek debt negotiations and disappointing Chinese economic data on top of uncertainty about U.S. interest rates.