What's the opposite of inflation? Deflation, and that's exactly what happened in December, according to the latest consumer price index (CPI). Prices fell 0.1 percent last month, bringing the year-over-year rate to 6.5 percent, down from a peak of 9.1 percent last June.
Here are the highlights:
Energy contributed the biggest share to the decline, with prices falling 4.5 percent. Under that category, fuel oil saw the biggest drop, falling 16.6 percent.
After energy, automobiles saw the most deflation in December. The price of new vehicles fell 0.1 percent, and the price of used vehicles fell 2.5 percent.
Food prices, meanwhile, ticked up 0.3 percent. That's the smallest increase in the last six months. Shelter costs also jumped a sizable 0.8 percent, up from 0.6 percent in November.
The report comes as a debate rages over whether the U.S. economy can achieve a so-called landing after several large rate hikes from the Federal Reserve. While the central bank has signaled moderation, any shift in the inflation narrative could change its tone.
Markets expected and had priced in the CPI drop, however, so it's possible stocks won't move drastically in response to the data. Futures rose slightly after the release.
Ahead of the release of October's consumer inflation data Tuesday, you may notice changes from the Bureau of Labor Statistics. When it comes to how it estimates health insurance costs, the move is expected to give a boost to the U.S. inflation measure which will reverse a trend that has provided some relief.
A handful of retailers will report earnings this week, including Home Depot, Target, Walmart and Macy's, as gas prices peaked in September to the end of this latest quarter while borrowing costs remain at their highest levels in decades.
The largest South American airline altered its travel policy because Taylor Swift was supposed to perform in Argentina's capital on Friday but moved the date to Sunday because of inclement weather.
