Investing.com - The U.S. dollar retreated from six-week highs in early European trade Wednesday amid rising risk appetite, while the euro struggled to push higher ahead of this week’s European Central Bank policy meeting. At 04:00 ET (09:00 GMT), the , which tracks the greenback against a basket of six other currencies, traded 0.3% lower at 103.107, not far below the highest level since early December at 103.82, reached in the previous session. Dollar retreats from highs Positive corporate earnings, from streaming giant Netflix (NASDAQ:) in particular, have resulted in...