Delta Air Lines Inc. (NYSE:DAL)

The valuation multiples for the period between 2017 and 2021 exhibit a distinct transition from relative stability to extreme volatility, particularly during the 2020 and 2021 fiscal years. While the initial three years showed a gradual compression in several ratios, the subsequent period reflects significant disruptions in earnings and book value.

Earnings and Profitability Multiples

The Price to Earnings (P/E) ratio trended downward from 10.57 in 2017 to 7.94 in 2019, indicating a contraction in the multiple applied to net income. The absence of a value in 2020 suggests a lack of positive earnings. In 2021, the P/E ratio experienced a sharp escalation to 96.74, signaling that the market price recovered far more rapidly than the company's earnings capacity. Similarly, the Price to Operating Profit (P/OP) remained stable between 5.72 and 6.59 from 2017 to 2019, before rising to 14.36 in 2021.

Revenue Valuation

The Price to Sales (P/S) ratio remained consistently low, fluctuating between 0.78 and 0.92 from 2017 through 2019. A notable spike occurred in 2020, with the ratio reaching 1.62, which indicates a substantial decline in sales revenue relative to the company's market capitalization. By 2021, the ratio normalized to 0.91, returning to levels observed prior to 2020.

Asset-Based Valuation

The Price to Book Value (P/BV) ratio showed a slight decline from 2.72 in 2017 to 2.46 in 2019. This was followed by an extreme increase to 18.01 in 2020, reflecting a significant erosion of shareholders' equity. Although the ratio moderated to 6.97 by the end of 2021, it remained considerably elevated compared to the 2017-2019 baseline, suggesting that the book value did not recover at the same pace as the equity valuation.

The valuation multiples exhibit significant volatility between 2017 and 2021, primarily driven by drastic fluctuations in earnings per share (EPS) rather than consistent share price movements.

Pre-Pandemic Valuation Trend (2017-2019)

A consistent contraction in the P/E ratio is observed from 2017 to 2019, declining from 10.57 to 7.94. This downward trend occurred despite a steady increase in EPS, which grew from 5.06 to 7.45, indicating that the market valuation did not keep pace with earnings growth during this period.

Earnings Collapse in 2020

A critical shift occurred in 2020, characterized by a transition to negative profitability with an EPS of -19.41. Due to these negative earnings, a P/E ratio cannot be meaningfully calculated, representing a total disconnect between share price and earnings.

Recovery and Multiple Expansion (2021)

The P/E ratio spiked to 96.74 in 2021. This extreme increase is a result of the denominator effect, where the share price remained relatively stable at 42.33 while EPS returned to a marginally positive value of 0.44. This surge reflects an anomalous valuation multiple typical of the early stages of recovery from a period of substantial loss.

The valuation metrics for Delta Air Lines Inc. between 2017 and 2021 exhibit a period of relative stability followed by a severe operational disruption and a subsequent recovery phase characterized by a significant expansion in the valuation multiple.

Share Price Trends

The share price remained relatively resilient between 2017 and 2019, peaking at 59.13 US$ in 2019. A substantial decline occurred in 2020, with the price dropping to 43.29 US$, and it remained largely stagnant through 2021, closing at 42.33 US$.

Operating Profit per Share

Operational profitability showed consistent strength from 2017 to 2019, reaching a high of 10.34 US$ per share. This trend reversed sharply in 2020, resulting in a significant operating loss of 19.54 US$ per share. By 2021, a return to profitability was observed, although the operating profit of 2.95 US$ per share remained substantially lower than pre-2020 levels.

Price to Operating Profit (P/OP) Ratio

From 2017 to 2019, the P/OP ratio was maintained within a narrow range of 5.72 to 6.59, indicating a consistent valuation relative to operating earnings. The ratio was not applicable in 2020 due to negative operating profits. In 2021, the P/OP ratio surged to 14.36, the highest in the observed period. This spike is attributed to the share price remaining relatively high compared to the diminished level of recovered operating profits.

Overall, the data indicates that while the company returned to operational profitability by 2021, the market valuation multiple expanded significantly because earnings had not yet recovered to their historical norms.

An analysis of the valuation multiples from 2017 to 2021 reveals a period of relative stability followed by a significant anomaly in 2020, with a subsequent return to historical norms by the end of 2021.

Share Price Trends

The share price exhibited fluctuations over the five-year period, reaching a peak of 59.13 US$ in 2019. A notable contraction occurred between 2019 and 2020, with the price declining to 43.29 US$, and ending the period at 42.33 US$ in 2021.

Sales per Share Performance

A consistent upward trend in sales per share was observed from 2017 to 2019, rising from 58.34 US$ to 73.44 US$. This growth was followed by a severe decline in 2020, where sales per share dropped to 26.79 US$, representing a significant reduction in revenue generation per share. A partial recovery was evident in 2021, as the figure rose to 46.72 US$.

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

The P/S ratio remained stable and below 1.0 between 2017 and 2019, moving from 0.92 to 0.81. In 2020, the ratio spiked to 1.62, an increase driven by the fact that the collapse in sales per share was far more pronounced than the decrease in the share price. By 2021, the ratio reverted to 0.91, indicating a normalization of the valuation relative to sales as revenue began to recover.

Between 2017 and 2021, the valuation metrics exhibit a period of relative stability followed by a significant disruption and a partial recovery. The relationship between market price and book value underwent a fundamental shift starting in 2020, driven primarily by a sharp contraction in equity rather than proportional movements in share price.

Share Price and Book Value per Share (BVPS) Trends

From 2017 to 2019, book value per share showed consistent growth, increasing from 19.68 US$ to 23.99 US$. During this same window, the share price remained relatively stable, peaking at 59.13 US$ in 2019. However, a severe decline occurred in 2020, where BVPS plummeted to 2.40 US$, representing a substantial erosion of the company's equity base. While the share price also declined to 43.29 US$ in 2020, the magnitude of the drop was significantly less than that of the book value. By 2021, BVPS saw a partial recovery to 6.07 US$, while the share price remained nearly flat at 42.33 US$.

Price to Book Value (P/BV) Analysis

The P/BV ratio remained stable and compressed between 2017 and 2019, moving from 2.72 to 2.46. This indicates that the market valued the company at a modest premium over its accounting value. In 2020, the ratio spiked abnormally to 18.01, a direct result of the collapse in BVPS. This surge suggests that the market continued to price in future recovery and intangible value despite the drastic reduction in tangible net assets. By 2021, the ratio moderated to 6.97 as the book value began to recover, although it remained significantly higher than the pre-2020 historical average.