Asian shares pulled ahead on Wednesday, taking their cue from Wall Street's strong performance as upbeat results from two technology bellwethers offset recent concerns about the outlook for the global economy.

In U.S. trading, shares of Apple Inc. and Texas Instruments Inc. gained on stronger-than-expected quarterly earnings, lifting the tech-heavy Nasdaq Composite index more than 2 percent. The S&P 500 added 1.96 percent to mark its biggest daily percentage gain since October 2013 and its fourth straight rising session.

MSCI's broadest index of Asia-Pacific shares outside Japan was up 0.2 percent, while Japan's Nikkei stock average was up 2 percent in early trade, rebounding from a sharp drop of a similar magnitude on Tuesday.

Japanese trade data released early Wednesday underpinned sentiment, as it showed Japan's exports rose 6.9 percent in September from a year earlier, a tentative sign that external demand is starting to pick up.

The yield on benchmark 10-year U.S. Treasury notes stood at 2.227 percent in Asian trade, up from Tuesday's U.S. close of 2.208 percent.

Data showing a stronger-than-expected 2.4 percent rise in U.S. domestic home re-sales last month provided evidence that the U.S. economic recovery maintained momentum and also put upward pressure on yields. The higher U.S. yields helped bolster the greenback, with the dollar index rising to 85.381.

The dollar was steady on the day against the yen at 107.04 yen, holding its overnight gains, while the euro nursed its losses after dropping on the ECB news, and stood at $1.2713 in early Asian trade.