What happened

Shares of radio-frequency identification-solutions-provider Impinj (NASDAQ:PI) tumbled on Friday following the company's second-quarter report. While Impinj beat analyst estimates across the board, the company slashed its full-year guidance due to delays among large-end customers. The stock was down about 23.5% by 12:30 p.m. EDT.

So what

Impinj reported second-quarter revenue of $34.1 million, up 31% year over year and about $0.6 million above the average analyst estimate. "We continue seeing strong indicators of growing adoption of RAIN and the Impinj platform across multiple verticals, including retail, healthcare and logistics," said Impinj co-founder and CEO Chris Diorio.

A declining stock chart with columns of numbers in the background.

Image source: Getty Images.

Non-GAAP earnings per share (EPS) came in at $0.06, flat year over year and $0.04 higher than analysts expected. The company expects revenue between $31.75 million and $33.25 million during the third quarter, along with a non-GAAP EPS loss between $0.01 and $0.08.

Due to several large customers delaying planned rollouts of Impinj's solutions, the company was forced to cut its full-year outlook for endpoint IC shipments. Impinj now expects to ship between 7.0 billion and 7.2 billion endpoints, down from a previous range of 7.8 billion to 8 billion.

Now what

With Impinj now guiding for just 18% annual growth in endpoint shipments this year, the stock's sky-high valuation has taken a hit. Prior to Friday's decline, shares of Impinj traded for about 8.5 times sales and more than 200 times non-GAAP earnings.

Whether these delays are a temporary problem or something more remains to be seen. Investors seem to be leaning toward the latter, punishing the stock for an unexpected guidance cut.

Timothy Green has no position in any stocks mentioned. The Motley Fool recommends Impinj. The Motley Fool has a disclosure policy.