Analog Devices Inc. (NASDAQ:ADI)

The valuation ratios exhibit significant volatility over the observed period, characterized by a distinct cyclical pattern of expansion and contraction. A notable trend is the marked decline in most multiples during 2023, followed by a sharp recovery and subsequent peak in valuation premiums throughout 2024 and 2025, before a moderate correction in late 2026.

Price to Earnings (P/E) and Price to Operating Profit (P/OP)

These two ratios demonstrate a strong positive correlation, reflecting synchronized movements in earnings and operating profit valuations. Both ratios peaked in late 2021 and early 2022, with the P/E reaching 68.72 and P/OP reaching 56.12. A significant contraction occurred through 2023, with the P/E ratio bottoming at 23.57 in July 2023 and the P/OP ratio reaching a low of 20.41 in April 2023. A subsequent expansion drove the P/E to a period high of 76.64 in February 2025 and the P/OP to 61.84 in the same month, before both trended downward toward the end of the period.

Price to Sales (P/S)

The P/S ratio shows a U-shaped trajectory. Initial values around 10.06 declined to a low of 6.75 in April 2023. However, from 2024 onward, a sustained upward trend is observed, indicating an increasing premium on revenue. This culminated in a peak of 15.22 in May 2026, suggesting that the market attributed higher value to the top-line growth or revenue quality in the later stages of the period compared to the beginning.

Price to Book Value (P/BV)

The P/BV ratio experienced a sharp correction in late 2021, dropping from 4.98 in July to 2.50 in October. For much of 2022 and 2023, the ratio remained relatively stable within the 2.24 to 2.72 range. A steady recovery began in 2024, with the ratio climbing consistently to reach a peak of 5.75 in May 2026. This increase indicates a growing divergence between the market value of the equity and the accounting value of the assets.

Overall, the data indicates a period of valuation compression during 2023 across all metrics, followed by a significant re-rating of the stock in 2024 and 2025. The divergence between the P/S and P/BV ratios, which reached their highest levels toward the end of the sequence, suggests a shift in market sentiment toward higher growth expectations or increased intangible value relative to historical norms.

The valuation trajectory of the common stock exhibits distinct cycles of expansion and compression between January 2021 and August 2026. The Price-to-Earnings (P/E) ratio demonstrates significant volatility, reflecting a dynamic interplay between a generally ascending share price and fluctuating quarterly earnings per share (EPS).

Earnings Per Share (EPS) Trends

Earnings experienced a period of volatility between 2021 and 2023, reaching a local peak of 7.53 in July 2023 before declining to a trough of 3.15 by February 2025. A strong recovery followed in 2026, with EPS climbing to a period high of 8.53 by August 2026, indicating a significant increase in profitability toward the end of the analyzed timeframe.

Share Price Movement

The share price maintained a long-term upward trajectory, rising from 159.75 in January 2021 to a peak of 398.05 in May 2026. While there were intermittent corrections, the overall trend suggests sustained investor demand and capital appreciation over the six-year period.

P/E Ratio Volatility and Valuation Cycles

Three distinct valuation phases are observable. First, a period of expansion occurred in late 2021 and early 2022, where the P/E ratio spiked to 68.72 as earnings temporarily softened. Second, a period of significant valuation compression took place throughout 2023, with the P/E ratio dropping to a low of 23.57 in July 2023, coinciding with peak earnings levels. Third, a second expansion phase occurred between 2024 and early 2026, with the P/E ratio reaching its maximum of 76.64 in February 2025, driven by a surge in share price that outpaced earnings growth.

Convergence and Normalization

Toward the conclusion of the period, a trend toward normalization is evident. As earnings grew rapidly in 2026, the P/E ratio began to compress from its elevated levels, falling to 43.74 by August 2026. This indicates that the stock price growth in the final year was increasingly supported by fundamental earnings growth rather than purely speculative expansion.

The Price to Operating Profit (P/OP) ratio exhibits significant volatility over the observed period, characterized by distinct cycles of valuation expansion and compression. The ratio fluctuates between a low of 20.41 and a peak of 61.84, reflecting varying correlations between share price movements and underlying operating performance.

Valuation Compression Phase

A sustained downward trend in the P/OP ratio is observed between April 2022 and April 2023, where the ratio declined from 41.74 to 20.41. This compression was driven by a substantial increase in operating profit per share, which rose from 3.83 to 8.49, effectively outpacing the growth in the share price and resulting in a more conservative valuation relative to earnings.

Valuation Expansion and Re-rating

A sharp reversal occurs starting in October 2023, with the P/OP ratio climbing from 23.53 to a peak of 61.84 by February 2025. This period of expansion was characterized by a decoupling of price and profit; while the share price increased from 181.25 to 241.66, operating profit per share concurrently declined from 7.70 to 3.91, leading to a significant spike in the valuation multiple.

Profit-Led Stabilization

From May 2025 through August 2026, a gradual normalization of the ratio is evident, moving from 47.16 down to 36.65. Although the share price reached its highest levels, peaking at 398.05, the P/OP ratio was moderated by a strong recovery in operational efficiency, with operating profit per share increasing to a maximum of 10.18.

Correlation Analysis

The data indicates that the P/OP ratio is highly sensitive to fluctuations in operating profit per share. The most extreme valuation peaks occurred when operating profits dipped while share prices remained resilient or grew, whereas the lowest valuation multiples coincided with periods of peak operating profitability.

The valuation of the company relative to its revenue exhibits a cyclical pattern characterized by a mid-period contraction followed by a significant expansion in the later years of the analyzed timeframe.

Price to Sales (P/S) Ratio Trajectory

The P/S ratio began at 10.06 in January 2021, experiencing an initial peak of 12.98 in October 2021 before entering a period of compression. A downward trajectory was observed throughout 2022, with the ratio falling to 7.14 by October 2022. This compression reached its nadir in April 2023, where the ratio hit a low of 6.75.

A reversal in this trend occurred in late 2023, initiating a period of substantial valuation expansion. The P/S ratio climbed consistently through 2024 and 2025, eventually peaking at 15.22 in May 2026. The period concluded with a moderate correction to 13.03 by August 2026.

Relationship Between Share Price and Sales per Share

From January 2021 through April 2023, sales per share showed a general upward trend, increasing from 15.88 to 25.67. During this phase, the share price remained relatively stagnant or declined, which drove the P/S ratio downward as revenue growth outpaced market valuation.

In contrast, the period from 2024 to 2026 was marked by aggressive share price appreciation that significantly outpaced sales growth. The share price rose from 193.72 in October 2023 to a peak of 398.05 in May 2026. While sales per share also increased to 28.65 by August 2026, the magnitude of the price increase resulted in the observed expansion of the P/S multiple.

The Price to Book Value (P/BV) ratio exhibited three distinct phases between January 2021 and August 2026: an initial period of high valuation, a prolonged phase of compression, and a final stage of aggressive expansion.

Book Value Per Share (BVPS) Transition

A significant structural shift in book value occurred between July 31, 2021, and October 30, 2021, where BVPS increased from 33.31 to 72.32. Following this abrupt increase, the BVPS remained relatively stable, fluctuating within a narrow range between 69.06 and 72.22 for the remainder of the period.

Valuation Compression Phase

Concurrent with the increase in book value in late 2021, the P/BV ratio experienced a sharp contraction, dropping from 4.98 in July 2021 to 2.50 in October 2021. From October 2021 through April 2023, the ratio remained depressed, reaching a period low of 2.24 in April 2022. This suggests a period where the market valuation grew more slowly than the underlying accounting equity.

Valuation Expansion and Peak

Beginning in February 2024, a sustained upward trend in the P/BV ratio emerged. The ratio climbed from 2.70 in October 2023 to a peak of 5.75 by May 2, 2026. This expansion was driven primarily by a substantial increase in share price, which rose from 193.72 in October 2023 to 398.05 in May 2026, while the BVPS slightly declined from 71.68 to 69.27 over the same interval.

Correlation Between Price and Ratio

The data indicates a strong positive correlation between the share price and the P/BV ratio in the latter half of the analyzed period. As the share price ascended toward its peak in 2026, the P/BV ratio mirrored this trajectory, reflecting increased investor willingness to pay a premium over the company's book value.