Lumentum Holdings Inc. (NASDAQ:LITE)

The Price to Sales (P/S) ratio exhibits a general upward trajectory over the observed period, characterized by an initial growth phase, a period of relative stability, and an eventual extreme valuation spike. While sales per share grew steadily for the majority of the timeline, the share price experienced disproportionate growth in the final years, leading to a significant divergence between revenue generation and market valuation.

Initial Expansion and Stabilization (2015–2022)

From 2015 to 2018, the P/S ratio increased from 1.20 to 3.46, reflecting a market re-rating as the share price rose from 16.98 to 68.15. Between 2019 and 2022, the ratio remained relatively stable, fluctuating within a narrow band between 2.65 and 3.76. During this interval, the valuation closely tracked the growth in sales per share, which climbed from 20.36 to 25.15.

Corrective Phase and Volatility (2023–2024)

A notable contraction occurred in 2023, with the P/S ratio dropping to 2.01, the lowest level since 2016. This was driven by a sharp decline in share price to 53.18 despite continued growth in sales per share to 26.49. A partial recovery followed in 2024, where the P/S ratio rose to 2.82, although this occurred alongside a decrease in sales per share to 19.99.

Exponential Valuation Surge (2025–2026)

An extreme divergence is observed in the final two years. The P/S ratio accelerated from 5.01 in 2025 to 28.84 in 2026. This surge is primarily attributed to an exponential increase in share price, which rose from 117.96 to 968.90. While sales per share also increased to 33.60, the growth in market price vastly outpaced the growth in revenue, resulting in a valuation multiple that is significantly higher than any previous period in the sequence.