- US futures and Asian stocks fell after Amazon and Apple reported disappointing earnings, and as traders weighed bond-market gyrations on concerns about inflation and monetary tightening.

- Shares were lower in Japan and Hong Kong and wavered China.

- Contracts on the Nasdaq 100 underperformed their counterparts on the S&P 500. Apple and Amazon fell in extended trading, signaling a combined market value drop of more than $200 billion when the US reopens. That overshadowed the upbeat views on company performance that had previously driven Wall Street to a record close.

- The 10-year Treasury yield in the US fell. For the first time since the US government reintroduced a two-decade maturity in 2020, the curve between 20- and 30-years has inverted.

- Global bond markets are whipsawing in the face of inflationary pressures and the prospect of interest-rate hikes.

- Australian debt fell after the central bank decided not to defend its 0.1 percent yield target.

- The US dollar rose from a one-month low, while crude oil fluctuated.

- The debt crisis at China Evergrande Group remains a hot topic in China. Some bondholders received an overdue interest payment, buying the troubled property developer more time.