11:19 AM EDT, 09/12/2025 (MT Newswires) -- Retail price increases tied to US President Donald Trump's tariffs are appearing to take hold, with such gains at consumer growth and e-commerce names likely to continue over the coming months, Oppenheimer said in a Friday client note.

Prices of 66, or 34%, of about 200 products tracked by the brokerage moved higher this month, up from 28% of items that registered growth in August and 20% in July, according to the report. Oppenheimer's tracker assesses shifts in pricing within small baskets of likely tariff-impacted items across the consumer growth and e-commerce coverage.

For products that did see price growth, the increase averaged at 16% this month, compared with 15% in August and 14% in July.

"Conversations with managements of leading consumer enterprises suggest that tariff-driven price adjustments are starting to take shape, and are likely to continue at an expanding list of items over the next several months," Oppenheimer wrote in the note. "We believe this suggests potential challenges and/or benefits of forthcoming adjustments likely remain on the come."

The US Supreme Court agreed to hear the Trump administration's arguments challenging a lower court ruling on tariffs, according to an order released earlier this week. The US Court of Appeals for the Federal Circuit recently ruled that most of tariffs were illegal.

US consumer inflation accelerated at the fastest pace in seven months in August, while the annual core rate remained above 3%, according to government data released Thursday. Earlier in the week, data showed that producer prices fell for the first time in four months in August, defying Wall Street's expectations for a rise.

Best Buy ( BBY ) represented 45% of upward price adjustments across consumer electronics, according to the brokerage. Home improvement retailers Home Depot ( HD ) and Lowe's (LOW) opted not to raise prices on a group of 20 products part of Oppenheimer's study.

Home furnishing retailers Williams Sonoma ( WSM ) and Purple Innovation ( PRPL ) raised prices on 2 of the 20 products.

The brokerage didn't see any "notable" increases at athletic apparel companies Nike ( NKE ) and Lululemon Athletica ( LULU ) , while sporting goods retailers Dick's Sporting Goods (DKS) and Academy Sports & Outdoors (ASO) maintained prices on more popular products and raised on other, less-visible items.

Price: 76.99, Change: -1.47, Percent Change: -1.87