Sometimes meeting your own guidance isn't enough. Impinj Inc. (PI) found that out the hard way Tuesday when its preliminary fourth-quarter results sent shares tumbling more than 6% in after-hours trading, even though the numbers technically looked fine on paper.

The Results That Weren't Quite Good Enough

Ahead of a scheduled appearance at the annual Needham Growth conference, Impinj disclosed that it expects fourth-quarter revenue to land at the high end of its previous guidance range of $90 million to $93 million. The IoT company also projected adjusted EBITDA above the midpoint of its prior $15.4 million to $16.9 million forecast.

Here's the thing: high end of guidance usually sounds pretty good. But investors apparently wanted more, and the stock paid the price in extended trading. Impinj was hovering around $187.50 after the bell, down about 6% from its regular session close.

What Comes Next

Impinj co-founder and CEO Chris Diorio and CFO Cary Baker are scheduled to participate in a fireside chat at the Needham Growth Conference on Wednesday at 11:45 a.m. ET, where they'll likely field questions about these preliminary numbers.

The company also confirmed Tuesday that it will release complete financial results for the fourth quarter after market close on February 5. Wall Street analysts had been penciling in earnings of 50 cents per share on revenue of $91.84 million, so investors will be watching closely to see where the final numbers actually land.

Technical Picture Still Looks Decent

Despite the after-hours stumble, Impinj maintains a solid technical foundation. The stock trades comfortably above both its 20-day and 50-day simple moving averages, suggesting the broader trend remains intact.

The RSI sits at 64.88, which puts it in neutral territory but approaching overbought levels. That means the stock has momentum, though traders might start watching for potential pullbacks. Meanwhile, the MACD remains above its signal line, indicating continued bullish momentum.

Key support sits at $176.50, while resistance looms at $198.50. Breaking through that resistance could open the door for further gains, while a drop toward support might signal either a reversal or trend continuation depending on how the stock behaves at that level.

Zoom out to the twelve-month view, and Impinj has gained a respectable 36.37%, demonstrating solid long-term strength even as it navigates shorter-term volatility.

The current setup suggests the company remains in a favorable position for growth, but traders will want to keep close tabs on those support and resistance levels as well as momentum indicators to navigate whatever comes next.