0308 GMT April 21, 2021
News of more vaccines coming on line and being rolled out, the expected passage of Joe Biden's stimulus package, slowing infection rates and easing lockdowns are contributing to the narrative that the global economy will see a burst of activity from the second half of the year, AFP reported.
But reflation expectations are causing a headache for investors, who fear the spending boom will send prices rocketing and force the Federal Reserve to hike interest rates – removing a key pillar of support for equities over the past year.
And this anxiety, compounded by a 12-month rally that has pushed equities to record or multi-year highs, has jolted markets recently.
Last week's sell-off came on the back of rising US Treasury yields, an indication of rising interest rates, and while the bond market has steadied this week traders remain cautious.
Hopes for a quick bounce back were boosted Tuesday when the White House said it would have enough shots to immunize every adult by the end of May, two months earlier than first thought.
But "so are the market's inflation expectations", said Axi strategist Stephen Innes. "And despite vaccine optimism trying to provide a booster shot to risk sentiment, it could prove to be a double-edged sword when inflation kicks in as expected, more so if it then forces the Fed's hand."
Still in a bull market
And Katerina Simonetti at Morgan Stanley Private Wealth Management added: "We believe we're still very much in a bull market, but certain pullbacks like the one we've seen since the beginning of this year are very natural and sometimes needed.
"If interest rates start moving higher and quicker than expected, then there's a chance there might be more significant pullback in the market," she told Bloomberg TV.
Asian investors brushed off a Wall Street retreat to push higher Wednesday, with Hong Kong rallying more than one percent while Shanghai, Singapore, Seoul and Taipei were also in positive territory.
Sydney enjoyed a healthy rally after data showed the economy grew more than expected towards the end of last year.
While trading floor scenes of worry about the prospect of rising borrowing costs, Fed officials continue to try to soothe concerns.
The latest was governor Lael Brainard, who said it would take "some time" for the central bank's inflation and employment conditions to be met and push it to rethink its ultra-loose monetary policy.
"Even after the conditions for liftoff have been met, changes in that policy rate are likely to be only gradual," she told the Council on Foreign Relations think-tank. A surge in inflation would likely be transitory rather than long-term, she added.