HONG KONG, Oct 14 — Equities rallied today to extend a surge on Wall Street, where all three indexes saw extreme swings in response to a forecast-beating inflation report that cemented expectations for more big Federal Reserve rate hikes.

Sterling also held most of its big gains sparked by speculation the UK government was set to perform another U-turn on its debt-fuelled mini-budget, though the yen remained stuck around three-decade lows against the dollar.

The hotly awaited US inflation report showed prices rose last month at a faster clip than expected, despite a series of interest rate increases this year that have fanned fears of a global recession.

The month-on-month reading came in double estimates, while core inflation — which strips out volatile energy and food prices — was also elevated.

The figures sparked a sharp plunge on Wall Street but the selling quickly reversed, and all three main indexes finished the day with gains of more than two per cent, with analysts suggesting several reasons for the extreme move.

Some said the initial selling may have been a knee-jerk reaction before traders accepted the data was not as bad as other recent reports, while technical factors were also flagged.

Others speculated that equities had finally reached their bottom after a year of selling that has seen many indexes plunge into correction territory, having lost more than 20 per cent from their recent peaks.

"The market reversal was a head-scratcher", said OANDA's Edward Moya. "Some investors are convinced core inflation will soon start trending lower. Fed tightening will remain aggressive at 75 basis points in November and possibly December," he added.

"Monetary policy is quickly getting restrictive and that will undoubtedly send inflation lower. It looks like rates will peak slightly above five per cent and for some that is good enough of a reason to get back into stocks."

He warned, however, that "given the path for rates is higher, this market reversal won't last long".

Tokyo piled on more than three per cent, while Seoul and Taipei added more than two per cent. There were also big gains in Mumbai, Sydney, Singapore, Wellington and Manila. Hong Kong closed in positive territory but late selling saw it end well off its intraday highs.

London, Paris and Frankfurt jumped in the morning, extending yesterday's gains in early business.

There was little reaction to news that Chinese consumer inflation had hit a two-year high partly because of surging pork prices, though Shanghai was well up ahead of the start of a key Communist Party gathering at which Xi Jinping is expected to be named president for a third term.

Yen weakness

The pound held up after breaking higher Thursday on reports the new government could row back on more tax-cut pledges in its mini-budget, which sparked market turmoil when released two weeks ago.

Sterling sat around US$1.13 — compared with Thursday's sub-US$1.10 levels — with help also coming from Bank of England cash injections to prop up financial markets.

The pound's stronger position came despite Prime Minister Liz Truss's insistence that there would be no more U-turns, after she was previously forced to scrap a plan to cut the higher rate of income tax.

Finance Minister Kwasi Kwarteng has returned early from a meeting in Washington to address the crisis.

While the BoE has said it intends to end its market support Friday, analysts say it will likely keep an eye on events.

"There is... an expectation that whatever the Bank of England and Governor (Andrew) Bailey says about ending the support for the gilt market today, if we get further turbulence next week, they will have little choice but to step in and provide liquidity to the market," said CMC Markets' Michael Hewson.

The US inflation data pushed the already strong dollar further up against other currencies and it hit a 32-year high of 147.67 yen. Traders are now looking to see if Tokyo intervenes again to protect the unit.

Japanese Finance Minister Shunichi Suzuki said authorities were "watching the foreign exchange markets with a high sense of urgency, and we'll take appropriate responses against excessive moves".

Officials refused to say if they intervened Thursday following a brief drop in response to the greenback's spike.

The yen's weakness comes from the Bank of Japan's refusal to lift interest rates — citing a need to support the economy — as the Fed presses ahead with its big rate hikes. — AFP

Key figures around 0810 GMT

Tokyo - Nikkei 225: UP 3.3 per cent at 27,090.76 (close)

Hong Kong - Hang Seng Index: UP 1.2 per cent at 16,587.69 (close)

Shanghai - Composite: UP 1.8 per cent at 3,071.99 (close)

London - FTSE 100: UP 0.9 per cent at 6,911.54

Pound/dollar: DOWN at US$1.1302 from US$1.1333 Thursday

Dollar/yen: UP at 147.47 yen from 147.22 yen

Euro/dollar: DOWN at US$0.9769 from US$0.9780

Euro/pound: UP at 86.37 pence from 86.28 pence

West Texas Intermediate: UP 0.4 per cent at US$89.48 per barrel

Brent North Sea crude: UP 0.4 per cent at US$94.92 per barrel

New York - Dow: UP 2.8 per cent at 30,038.72 (close)