usA roaring stock market and rising interest rates are fueling the strongest recovery in the $2.4 trillion U.S. corporate-pension sector in more than a quarter century, giving companies new flexibility in dealing with some employee-benefit costs.

Investments in the average company’s pension plan are expected to be at levels that cover 96% of future obligations at the end of the year, according to a new estimate by J.P. Morgan Chase & Co. A separate analysis by Milliman Inc., which provides actuarial products and services, puts the figure above 94%, while pension specialist Mercer says the figure was 91% at the end of October. Funding levels are up from 77% at the end of last year, according to J.P. Morgan—a figure that was essentially unchanged since the financial crisis of 2008.

  WSJ