Asia stocks gained on Friday after Wall Street ended volatile trade in the green, adding to the big advances of the previous session, although lingering investor jitters helped support safe-haven currencies such as the yen.

MSCI's broadest index of Asia-Pacific shares outside Japan rose 0.3 percent. It has fallen almost four percent so far in December.

The Shanghai Composite Index edged up 0.3 percent.

Australian stocks added 0.6 percent and South Korea's KOSPI climbed 0.5 percent. Japan's Nikkei bucked the trend and slipped 0.5 percent, losing some steam after surging nearly four percent the previous session.

U.S. stocks roared back to end in positive territory on Thursday, with the Dow adding 1.14 percent, after suffering steep losses for much of the session.

The gains come a day after Wall Street indexes posted their biggest daily percentage increases in nearly a decade following a sharp plunge at the week's start.

However, all three U.S. major indexes remain down more than nine percent for December following losses earlier in the month.

“Selling pressure on U.S. equities is beginning to dissipate, but the VIX index is still around 29 with investor risk sentiment still recovering. A renewed market slide remains a risk,” said Junichi Ishikawa, senior FX strategist at IG Securities in Tokyo.

The CBOE Volatility Index rose midweek to 36, its highest level since early February. It has since pulled back below 30 but remains well above a recent low of 15 marked at the beginning of December.

Focus turned to the Fed's stance and whether the equity markets can sustain their recovery at the start of the new year.

“If Fed officials - notably Chairman (Jerome) Powell and New York Fed Governor Williams - show a cautious stance toward further rate hikes given recent instability in the stocks markets, that would lead to a rise in U.S. equities and Treasury yields, and a firmer dollar,” said Masafumi Yamamoto, chief forex strategist at Mizuho Securities in Tokyo.

Fed Chairman Powell is due to speak on Jan. 4.

While stocks showed signs of recovery, lingering market volatility helped keep safe-haven currencies such as the yen and Swiss franc in demand.

The dollar extended overnight losses and was down 0.2 percent at 110.74 yen. It was on track to lose more than two percent this month.

The greenback declined 0.25 percent to 0.9852 francs per dollar after slumping more than 0.8 percent the previous day. The U.S. currency has fallen 1.1 percent against its Swiss peer on the month.

The euro was a shade higher at 1.1447 U.S. dollars after gaining 0.7 percent overnight. The common currency was headed for a one percent gain in December.

The 10-year U.S. Treasury note yield was up 3 basis points at 2.773 percent, pulling back from a nine-month low of 2.720 percent brushed earlier in the week.

The yield had climbed to a seven-year peak of 3.26 percent in October as the debt market braced for potentially faster pace of Fed rate hikes in 2019.

Oil prices remained choppy, with U.S. crude futures up 2.5 percent at 45.73 dollars per barrel after sliding 3.5 percent the previous day.

U.S. crude had rallied 8 percent midweek after dropping to a 1-1/2-year low of 42.36 dollars at the week's start.

Crude has lost more than a third of its value since the beginning of October and is heading for declines of more than 20 percent in 2018.

In addition to oversupply concerns, worries about slowing global economic growth have dampened investor demand for riskier asset classes and pressured crude.

Brent crude climbed two percent to 53.23 dollars per barrel after losing more than four percent the previous day.

Spot gold, which has benefited this week from the global market turmoil stood little changed at 1,277.43 dollars an ounce following an ascent to a six-month high of 1,279.06 dollars on Wednesday.