Stock Market Today: Stocks Rise After PPI Report, Arm IPO

The main indexes closed comfortably higher, while Arm stock soared on its first day of trading.

Arm stock displayed on a screen at the Nasdaq MarketSite in New York City
(Image credit: Michael M. Santiago/Getty Images)

Stocks opened higher Thursday following the latest inflation data and built on those gains as the session wore on. Investor sentiment also got a lift from Arm Holdings' (ARM) initial public offering (IPO), with the chipmaker sizzling on its first day of trading.  

This morning's producer price index (PPI), which measures what businesses are charging suppliers for goods, painted a similar picture to yesterday's Consumer Price Index (CPI). Specifically, the Bureau of Labor Statistics said earlier the August PPI rose 0.7% month-over-month, faster than July's 0.4% increase, as gas prices spiked. Core PPI, which excludes volatile food and energy prices, was unchanged from the month prior, but rose at a quicker annual pace (3.0% vs July's 2.9%).

Subscribe to Kiplinger’s Personal Finance

Be a smarter, better informed investor.

Save up to 74%

Sign up for Kiplinger’s Free E-Newsletters

Profit and prosper with the best of expert advice on investing, taxes, retirement, personal finance and more - straight to your e-mail.

Profit and prosper with the best of expert advice - straight to your e-mail.

Sign up

To continue reading this article
please register for free

This is different from signing in to your print subscription

Why am I seeing this? Find out more here

Karee Venema
Senior Investing Editor,

With over a decade of experience writing about the stock market, Karee Venema is the senior investing editor at She joined the publication in April 2021 after 10 years of working as an investing writer and columnist at Schaeffer's Investment Research. In her previous role, Karee focused primarily on options trading, as well as technical, fundamental and sentiment analysis.