Fabrinet (NYSE:FN) shares fell 7.05% to $556.40 in Monday's after-hours trading after the optical manufacturing services provider reported fiscal fourth-quarter and full-year 2026 results and issued first-quarter fiscal 2027 guidance. The stock had closed Monday's regular session up 4.97% at $598.58. Fourth-quarter fiscal 2026 revenue rose to $1.3158 billion from $909.7 million a year earlier, while GAAP (standard accounting rules) net income increased to $139.3 million, or $3.83 per diluted share, from $87.2 million, or $2.42 per share. Non-GAAP (adjusted, non-standard metric) net income reached $149.1 million, or $4.10 per diluted share, up from $95.6 million, or $2.65. For fiscal 2026, revenue climbed to $4.64 billion from $3.42 billion and GAAP net income rose to $473.0 million from $332.5 million, while non-GAAP net income increased to $510.9 million from $368.8 million. Fabrinet guided for first-quarter fiscal 2027 revenue of $1.375 billion to $1.425 billion, GAAP net income per diluted share of $3.39 to $3.54 and non-GAAP net income per diluted share of $4.10 to $4.25, excluding share-based compensation expenses and certain non-recurring items.