NEW YORK CITY, RAW – US stock indexes have gained ground with Nasdaq leading the advance as investors appeared relieved that Federal Reserve chair Jerome Powell’s testimony to Congress did not include any major surprises.

Powell told a congressional hearing on Tuesday the US central bank was determined to ensure high inflation did not become “entrenched”.

He added that rather than diminishing job growth, a policy tightening was necessary to maintain the economic expansion.

After falling just under one per cent earlier in the day, the interest rate sensitive technology sector bounced back and brought the broader indexes with it.

Powell’s comments likely reassured investors that the Fed was not going to prioritise inflation reduction above all else, said Shawn Cruz, senior manager of trader strategy at TD Ameritrade in Chicago.

“The initial concern was the Fed would upset the pace of the recovery,” said Cruz.

But the investor takeaway from Tuesday’s testimony was that “he’s not just going to try and crush inflation and not worry about the other effects that could have on the economy. He’s also going to be sort of cognisant of the potential fallout effect”.

Investors had been selling stocks since January 5 when December meeting minutes showed Fed officials discussing how “very tight” job market and unabated inflation might require interest rate hikes sooner than expected and a reduction of the Fed’s overall asset holdings as a second brake on the economy.

While investors will anxiously watch inflation data due out on Wednesday, Cruz notes that they are already prepared for an elevated number with consensus forecasts for a seven per cent increase on a year-on-year basis for the headline Consumer Price Index (CPI).

Core CPI, which excludes those, is seen rising by 5.4 per cent, according to economists polled by Reuters.

According to preliminary data, the S&P 500 gained 42.58 points, or 0.93 per cent, to end at 4,713.61 points, while the Nasdaq Composite gained 208.85 points, or 1.41 per cent, to 15,153.89. The Dow Jones Industrial Average rose 186.58 points, or 0.52 per cent, to 36,255.45.

The S&P’s gain snapped a five-day slump, while the Nasdaq added to Monday’s tiny gain, when it started the week with an afternoon comeback that strategists attributed to an influx of retail investors hunting for bargains after an early session sell-off.

Marko Kolanovic, chief global markets strategist at JPMorgan Chase & Co, on Monday issued a research note calling the recent pull-back in riskier assets “arguably overdone” and calling it a buying opportunity.

International Business Machines fell after UBS downgraded the stock to “sell” and slashed its price target.

Vaccine maker Moderna declined after rising more than nine per cent on Monday. Pfizer’s vaccine partner BioNTech was also losing ground on Tuesday.

The World Health Organisation said more research is needed to find out if existing COVID-19 vaccines provide adequate protection against the Omicron variant.

Casino operator Las Vegas Sands Corp rose after J.P. Morgan upgraded the stock to a “overweight” rating.