Teledyne Technologies' stock experienced a significant after-hours plunge of 5.33% on Wednesday.

The company reported first-quarter non-GAAP earnings of $5.80 per share, beating analyst estimates of $5.48, while revenue of $1.56 billion also exceeded expectations. Teledyne also raised its full-year 2026 non-GAAP EPS outlook to a range of $23.85 to $24.15 from a prior forecast of $23.45 to $23.85.

Despite the strong quarterly results, the after-hours sell-off suggests investor disappointment that the company's raised full-year guidance was only marginally above the consensus estimate of $23.82. The market appears to have anticipated a more substantial upward revision following the magnitude of the first-quarter outperformance.