Shares of Nike Inc. fell as much as 4.49%, or $1.83, to $38.90 as of 1:15 p.m. EDT Monday, dragging the stock to a fresh 52-week low and pushing it to price levels not seen in nearly 12 years, as investors reacted to disappointing sales guidance from premium athletic footwear rival On Holding AG.

Nike's intraday decline touched a low near $39.41 earlier in the session before extending further, marking the stock's weakest trading levels since late 2014, according to historical price data. The shares have declined roughly 38% so far in 2026, including a drop of more than 5% just in August, and now sit nearly 78% below their November 2021 all-time high of $179.10.

The primary trigger for Monday's decline traced back to competitor On Holding, which reported mixed second-quarter results the prior Tuesday. On Holding posted quarterly earnings of 44 cents per share, topping the analyst consensus estimate of 41 cents, but reported sales of $1.076 billion, falling short of the $1.110 billion analysts had expected. More significantly for the broader athletic apparel sector, On Holding issued full-year 2026 sales guidance of between $4.390 billion and $4.503 billion, below the market's prior consensus estimate of $4.490 billion, a signal that even one of the industry's stronger-performing brands anticipates slowing growth ahead.

Nike's decline outpaced the broader market and its sector Monday. The Nasdaq Composite was up 0.24% and the S&P 500 had shed just 0.15% during the same session, while the Consumer Discretionary sector overall declined roughly 0.8%, meaning Nike's drop significantly exceeded losses across comparable retail and apparel names. No specific new Nike earnings release or........

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