Stocks rallied Friday as investors weighed the latest data on inflation from the consumer-price index (CPI). The Dow booked its biggest weekly percentage gain since July.

US stocks surged to record highs on Friday as investors digested a crucial inflation report that helped cement expectations for the Federal Reserve’s next policy moves. The September inflation data released on Friday morning came in cooler than expected.

IBM and Advanced Micro Devices created tailwinds for the main indexes after scoring a major quantum-computing win.

Thursday morning, Dow reported an adjusted per-share loss of 19 cents from sales of $10 billion. Wall Street was looking for a 31-cent loss from sales of $10.2 billion.

Dow Inc.’s shares rose in premarket trading as improved volumes in the industrial unit helped reduce its loss from the previous quarter more than analysts expected.

Easing trade war tensions and promise from early earnings reports has investors looking on the bright side to start the week.

Dow Inc. has restarted two polyethylene resin lines at its Freeport, Texas, site following an Oct. 6 fire, while a third line remains under evaluation. The site represents nearly half of the company's domestic polyethylene output.