Amgen Inc. (NASDAQ:AMGN)

The valuation profile exhibits significant volatility, particularly within earnings-based multiples and book value ratios, while sales-based valuation remained relatively stable over the observed period. A notable anomaly occurs in early 2024, characterized by a sharp spike in price-to-earnings and price-to-operating profit ratios, followed by a gradual reversion toward historical means.

Price to Earnings (P/E) Ratio

The P/E ratio maintained a range between 16.18 and 23.14 from March 2022 through December 2023. However, a substantial escalation is observed in the first half of 2024, peaking at 53.65 in June 2024. This period of expansion suggests either a significant contraction in net income or a rapid increase in market price. Following this peak, the ratio decelerated throughout 2024 and 2025, eventually stabilizing between 22.82 and 25.22 by mid-2026.

Price to Operating Profit (P/OP) Ratio

The P/OP trend closely mirrors the P/E trajectory, indicating that the valuation volatility was driven by factors affecting both the top-line operating performance and bottom-line net income. The ratio rose from a low of 13.40 in December 2022 to a peak of 27.68 in September 2024. A subsequent correction occurred, with the ratio settling into a range of 16.84 to 19.30 during the 2025-2026 period.

Price to Sales (P/S) Ratio

Compared to earnings and book value multiples, the P/S ratio demonstrated the highest degree of stability. Values fluctuated within a narrow band, generally between 4.57 and 6.08. The lack of extreme spikes during the early 2024 period—where P/E and P/OP peaked—suggests that the volatility in those ratios was likely due to fluctuations in profitability rather than a fundamental shift in how the market valued the company's revenue stream.

Price to Book Value (P/BV) Ratio

A precipitous decline in the P/BV ratio is evident at the start of the period, falling from an extreme high of 138.87 in March 2022 to 23.95 by March 2023. This drastic reduction suggests a significant change in the equity base, potentially due to an increase in retained earnings or a decrease in treasury stock. From 2023 through 2026, the ratio stabilized, oscillating between a low of 17.87 and a high of 33.25, indicating a more normalized relationship between market capitalization and book value.

Overall, the data indicates a transition from extreme book-value premiums in early 2022 to a period of heightened earnings-based valuation in 2024, concluding with a stabilization of all primary valuation metrics by mid-2026.

The stock valuation metrics exhibit a period of relative stability followed by a phase of significant volatility and subsequent normalization between March 2022 and June 2026. While the share price demonstrates a long-term upward trajectory, the Price-to-Earnings (P/E) ratio reflects acute fluctuations driven primarily by temporary contractions in quarterly earnings performance.

Share Price Performance

A general upward trend is observed in the share price, which rose from 238.13 US$ in March 2022 to 407.83 US$ by June 2026. The growth was steady through 2022 and 2023, followed by a more pronounced acceleration starting in early 2024, despite some interim volatility in late 2024 and early 2025.

Earnings Per Share (EPS) Trends

Earnings per share remained relatively stable between 10.71 US$ and 14.92 US$ from March 2022 through December 2023. A significant decline occurred during the first half of 2024, with EPS dropping to a period low of 5.83 US$ in June 2024. A consistent recovery followed this trough, with EPS returning to double digits by March 2025 and reaching a peak of 16.17 US$ by June 2026.

Price-to-Earnings (P/E) Ratio Analysis

The P/E ratio was maintained within a moderate range of 16.18 to 23.14 from March 2022 to December 2023. A dramatic expansion occurred in the first half of 2024, peaking at 53.65 in June 2024. This spike is directly attributable to the simultaneous decline in EPS and the continued increase in share price, indicating a temporary disconnect between current earnings and market valuation. From March 2025 onward, the P/E ratio stabilized, fluctuating within a narrower band between 22.82 and 25.81 as earnings recovered to align with the higher share price.

The financial trajectory between March 2022 and June 2026 is characterized by a general appreciation in share price and a fluctuating operating profit per share, leading to significant shifts in the Price to Operating Profit (P/OP) valuation ratio.

Share Price Performance

The share price exhibited a long-term upward trend, rising from 238.13 US$ in March 2022 to 407.83 US$ by June 2026. While the growth was generally positive, periodic volatility is evident, specifically during the second half of 2024 when the price retracted from 320.16 US$ in September to 291.16 US$ in December, before resuming a strong ascent through 2025 and early 2026.

Operating Profit per Share Dynamics

Operating profit per share followed a non-linear path. After maintaining a range between 14.99 US$ and 18.07 US$ throughout 2022, a downward trend emerged, reaching a trough of 11.52 US$ in June 2024. This decline was followed by a sustained recovery period, with profit per share climbing consistently from late 2024 through June 2026, eventually peaking at 21.13 US$.

Price to Operating Profit (P/OP) Ratio Analysis

The P/OP ratio remained relatively stable between 13.40 and 15.88 during the first six quarters of the analyzed period. A sharp valuation expansion occurred between December 2023 and September 2024, with the ratio peaking at 27.68. This spike was driven by the divergence of an increasing share price and a simultaneous decline in operating profit per share. In the subsequent period, the ratio underwent a normalization process, fluctuating between 16.84 and 21.92 as operating profits recovered to better align with the higher share price.

The overall data indicates a period of valuation stress in 2024, where the market price outpaced fundamental operating earnings. However, the subsequent growth in operating profit per share through 2025 and 2026 served to stabilize the valuation ratio, supporting the higher share price levels on a more fundamental basis.

An analysis of the valuation metrics from March 31, 2022, to June 30, 2026, reveals a consistent growth in fundamental revenue performance contrasted with a more volatile share price trajectory, resulting in a fluctuating Price-to-Sales (P/S) ratio.

Sales per Share Growth

A sustained and linear upward trend is observed in sales per share, which grew from 45.74 US$ in March 2022 to 67.07 US$ by June 2026. This continuous increase indicates a steady expansion of revenue generation on a per-share basis throughout the entire period analyzed.

Share Price Volatility

The share price exhibited significant fluctuations, characterized by an overall upward trajectory from 238.13 US$ to a peak of 407.83 US$. Notable periods of contraction occurred in December 2022 and December 2024, followed by recovery phases and a substantial increase in valuation during the first half of 2026.

Price-to-Sales (P/S) Ratio Dynamics

The P/S ratio remained relatively range-bound between 4.57 and 6.08. A period of valuation compression is evident between March 2024 and June 2025, where the ratio declined from 5.93 to a low of 4.57, suggesting that sales growth outpaced share price appreciation during this window.

Recent Valuation Expansion

A sharp increase in the P/S ratio is observed toward the end of the period, rising from 5.02 in March 2026 to 6.08 in June 2026. This expansion was driven by a significant surge in the share price that exceeded the incremental growth in sales per share, marking the highest valuation multiple in the analyzed timeframe.

An analysis of the valuation metrics from March 2022 through June 2026 reveals a significant compression in the Price to Book Value (P/BV) ratio, moving from an extreme premium to a more stabilized valuation level. This trend is primarily driven by a substantial increase in the underlying book value per share, which occurred alongside more moderate growth in the market share price.

Price to Book Value (P/BV) Ratio Trends

The P/BV ratio experienced a sharp decline during the first half of the analyzed period, falling from a peak of 138.87 in March 2022 to a low of 17.87 by September 2023. Following this contraction, the ratio exhibited volatility, spiking to 33.25 in March 2024 before gradually trending downward again to end at 18.86 in June 2026. This overall reduction suggests a convergence between the market's valuation of the company and its accounting equity.

Book Value Per Share (BVPS) Growth

A consistent upward trajectory in BVPS is observed, starting at 1.71 USD in March 2022 and reaching 21.62 USD by June 2026. This represents a significant expansion of the company's equity base per share. Notable accelerations in book value growth occurred between March 2022 and March 2023, and again between June 2025 and June 2026, which served as the primary catalyst for the lowering P/BV ratios.

Share Price Correlation

The share price demonstrated a general long-term increase, rising from 238.13 USD in March 2022 to 407.83 USD in June 2026. However, the rate of share price appreciation was significantly outpaced by the growth in BVPS during the initial phases of the period. Periodic fluctuations in the P/BV ratio, such as the increase observed in early 2024, correlate with temporary dips in BVPS (falling to 9.36 USD in March 2024) coinciding with rising share prices.

Valuation Stability

The final quarters of the analysis indicate a period of relative stability in the P/BV ratio, fluctuating between approximately 17.91 and 22.99. This suggests that the market valuation has reached a more sustainable equilibrium relative to the company's book value compared to the extreme volatility observed in 2022.