Activity ratios measure how efficiently a company performs day-to-day tasks, such us the collection of receivables and management of inventory.
Short-term Activity Ratios (Summary)
Based on: 10-K (reporting date: 2026-05-31), 10-K (reporting date: 2025-05-31), 10-K (reporting date: 2024-05-31), 10-K (reporting date: 2023-05-31), 10-K (reporting date: 2022-05-31), 10-K (reporting date: 2021-05-31).
The analysis of short-term operating activity reveals a period of efficiency optimization between 2021 and 2023, followed by a gradual decline in asset turnover and a lengthening of the cash cycle through 2026.
- Inventory Management
- Inventory turnover remained consistently high and stable, ranging from 141.58 to 149.26. This is further evidenced by the average inventory processing period, which consistently fluctuated between 2 and 3 days, indicating a highly efficient and lean inventory system.
- Receivables and Operating Cycle
- A positive trend in credit management was observed from 2021 to 2023, as the average receivable collection period decreased from 52 to 41 days, coinciding with a peak in receivables turnover at 8.85. However, this efficiency diminished after 2023, with the collection period extending to 49 days by 2026 and the turnover ratio falling to 7.47. Consequently, the operating cycle, which bottomed at 43 days in 2023, expanded to 52 days by 2026.
- Payables and Cash Conversion Cycle
- The average payables payment period remained relatively stable, oscillating between 13 and 17 days. The cash conversion cycle mirrored the trends of the operating cycle; it improved from 38 days in 2021 to a low of 27 days in 2023, before trending upward to 35 days by 2026. This indicates a slower overall conversion of operating inputs into cash in the latter part of the analyzed period.
- Working Capital Efficiency
- Working capital turnover showed significant volatility in the later years. After a steady climb from 12.13 in 2021 to 18.07 in 2024, the ratio experienced a sharp spike to 29.55 in 2025, followed by a substantial contraction to 10.53 in 2026. This suggests instability in the relationship between net working capital and revenue generation toward the end of the period.
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Turnover Ratios
Average No. Days
Inventory Turnover
| May 31, 2026 | May 31, 2025 | May 31, 2024 | May 31, 2023 | May 31, 2022 | May 31, 2021 | ||
|---|---|---|---|---|---|---|---|
| Selected Financial Data (US$ in millions) | |||||||
| Revenue | 94,720) | 87,926) | 87,693) | 90,155) | 93,512) | 83,959) | |
| Spare parts, supplies, and fuel, less allowances | 669) | 602) | 614) | 604) | 637) | 587) | |
| Short-term Activity Ratio | |||||||
| Inventory turnover1 | 141.58 | 146.06 | 142.82 | 149.26 | 146.80 | 143.03 | |
| Benchmarks | |||||||
| Inventory Turnover, Competitors2 | |||||||
| Union Pacific Corp. | — | 31.14 | 31.53 | 32.46 | 33.57 | 35.11 | |
| United Airlines Holdings Inc. | — | 37.96 | 36.30 | 34.41 | 40.54 | 25.06 | |
| United Parcel Service Inc. | — | 119.97 | 110.25 | 97.28 | 112.87 | 135.69 | |
| Inventory Turnover, Sector | |||||||
| Transportation | — | 79.13 | 75.83 | 73.23 | 83.93 | 81.51 | |
| Inventory Turnover, Industry | |||||||
| Industrials | — | 4.31 | 4.06 | 4.23 | 4.28 | 4.03 | |
Based on: 10-K (reporting date: 2026-05-31), 10-K (reporting date: 2025-05-31), 10-K (reporting date: 2024-05-31), 10-K (reporting date: 2023-05-31), 10-K (reporting date: 2022-05-31), 10-K (reporting date: 2021-05-31).
1 2026 Calculation
Inventory turnover = Revenue ÷ Spare parts, supplies, and fuel, less allowances
= 94,720 ÷ 669 = 141.58
2 Click competitor name to see calculations.
The analysis of operating activity reveals a highly efficient inventory management system characterized by exceptionally high turnover rates and relative stability in inventory levels despite fluctuations in total revenue.
- Revenue Volatility
- Revenue experienced a significant increase from US$ 83,959 million in 2021 to a peak of US$ 93,512 million in 2022, followed by a period of contraction reaching a low of US$ 87,693 million in 2024. A recovery phase is observed in 2025, culminating in a six-year high of US$ 94,720 million by May 31, 2026.
- Inventory Level Stability
- The value of spare parts, supplies, and fuel has remained remarkably consistent, oscillating within a narrow range between US$ 587 million and US$ 669 million. This stability suggests that inventory requirements for operational maintenance and fueling are not linearly tied to revenue growth, indicating a controlled approach to supply chain overhead.
- Inventory Turnover Performance
- The inventory turnover ratio remains consistently high, consistently exceeding 140.00 across the analyzed period. A gradual increase is noted from 143.03 in 2021 to a peak of 149.26 in 2023, indicating an improvement in the speed at which supplies are utilized. A subsequent decline to 142.82 in 2024 was followed by a moderate recovery to 146.06 in 2025, before settling at 141.58 in 2026.
- Operational Insights
- The high turnover ratio suggests that the company maintains very lean inventory levels, effectively minimizing the capital tied up in spare parts and fuel. The lack of significant correlation between the fluctuating revenue and the inventory turnover ratio indicates a mature and standardized operational cadence in managing short-term supplies.
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Receivables Turnover
| May 31, 2026 | May 31, 2025 | May 31, 2024 | May 31, 2023 | May 31, 2022 | May 31, 2021 | ||
|---|---|---|---|---|---|---|---|
| Selected Financial Data (US$ in millions) | |||||||
| Revenue | 94,720) | 87,926) | 87,693) | 90,155) | 93,512) | 83,959) | |
| Receivables, less allowances | 12,672) | 11,368) | 10,087) | 10,188) | 11,863) | 12,069) | |
| Short-term Activity Ratio | |||||||
| Receivables turnover1 | 7.47 | 7.73 | 8.69 | 8.85 | 7.88 | 6.96 | |
| Benchmarks | |||||||
| Receivables Turnover, Competitors2 | |||||||
| Uber Technologies Inc. | — | 13.59 | 13.19 | 10.95 | 11.47 | 7.16 | |
| Union Pacific Corp. | — | 13.18 | 12.80 | 11.63 | 13.15 | 12.66 | |
| United Airlines Holdings Inc. | — | 24.71 | 26.38 | 28.30 | 24.96 | 14.81 | |
| United Parcel Service Inc. | — | 7.91 | 8.38 | 8.11 | 7.97 | 7.76 | |
| Receivables Turnover, Sector | |||||||
| Transportation | — | 10.18 | 10.73 | 10.29 | 9.56 | 8.05 | |
| Receivables Turnover, Industry | |||||||
| Industrials | — | 8.38 | 9.05 | 8.61 | 8.17 | 7.76 | |
Based on: 10-K (reporting date: 2026-05-31), 10-K (reporting date: 2025-05-31), 10-K (reporting date: 2024-05-31), 10-K (reporting date: 2023-05-31), 10-K (reporting date: 2022-05-31), 10-K (reporting date: 2021-05-31).
1 2026 Calculation
Receivables turnover = Revenue ÷ Receivables, less allowances
= 94,720 ÷ 12,672 = 7.47
2 Click competitor name to see calculations.
The analysis of receivables turnover reveals a cyclical pattern of credit collection efficiency, characterized by an initial period of improvement followed by a gradual decline in the latter years of the observed period.
- Collection Efficiency Trends
- A steady increase in the receivables turnover ratio is observed from 2021 to 2023, rising from 6.96 to a peak of 8.85. This upward trajectory indicates an acceleration in the conversion of accounts receivable into cash, reflecting improved operational efficiency in credit management during this interval.
- Revenue and Receivables Correlation
- Between 2021 and 2024, a trend of optimizing the receivables balance occurred. While revenue fluctuated, net receivables decreased from 12,069 million to 10,087 million. This reduction in the receivables balance, occurring alongside varying revenue levels, contributed to the enhanced turnover ratios seen through 2024.
- Recent Performance Deceleration
- A reversal in efficiency is evident beginning in 2025. Despite a projected increase in revenue to 94,720 million by 2026, receivables grew more rapidly, reaching 12,672 million. This disproportionate growth in outstanding receivables led to a decline in the turnover ratio to 7.47 by 2026, suggesting a slowing of the collection cycle and a potential expansion of the average collection period.
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Payables Turnover
| May 31, 2026 | May 31, 2025 | May 31, 2024 | May 31, 2023 | May 31, 2022 | May 31, 2021 | ||
|---|---|---|---|---|---|---|---|
| Selected Financial Data (US$ in millions) | |||||||
| Revenue | 94,720) | 87,926) | 87,693) | 90,155) | 93,512) | 83,959) | |
| Accounts payable | 4,327) | 3,692) | 3,189) | 3,848) | 4,030) | 3,841) | |
| Short-term Activity Ratio | |||||||
| Payables turnover1 | 21.89 | 23.82 | 27.50 | 23.43 | 23.20 | 21.86 | |
| Benchmarks | |||||||
| Payables Turnover, Competitors2 | |||||||
| Uber Technologies Inc. | — | 30.94 | 31.06 | 28.43 | 27.00 | 10.87 | |
| Union Pacific Corp. | — | 30.49 | 28.63 | 28.18 | 31.73 | 28.99 | |
| United Airlines Holdings Inc. | — | 12.93 | 13.61 | 14.01 | 13.24 | 9.62 | |
| United Parcel Service Inc. | — | 13.37 | 14.45 | 14.35 | 13.36 | 12.93 | |
| Payables Turnover, Sector | |||||||
| Transportation | — | 17.45 | 18.63 | 17.96 | 17.23 | 15.26 | |
| Payables Turnover, Industry | |||||||
| Industrials | — | 7.98 | 8.65 | 8.07 | 7.83 | 7.81 | |
Based on: 10-K (reporting date: 2026-05-31), 10-K (reporting date: 2025-05-31), 10-K (reporting date: 2024-05-31), 10-K (reporting date: 2023-05-31), 10-K (reporting date: 2022-05-31), 10-K (reporting date: 2021-05-31).
1 2026 Calculation
Payables turnover = Revenue ÷ Accounts payable
= 94,720 ÷ 4,327 = 21.89
2 Click competitor name to see calculations.
The payables turnover ratio demonstrates a non-linear progression between 2021 and 2026, characterized by a significant spike in 2024 followed by a return to historical baseline levels.
- Payables Turnover Trends
- A steady increase in the turnover ratio is observed from 2021 to 2023, rising from 21.86 to 23.43. This trend culminated in a peak of 27.50 in 2024, representing the highest rate of supplier payment efficiency during the analyzed period. Following this peak, the ratio moderated to 23.82 in 2025 and further declined to 21.89 by 2026, effectively returning to the level recorded at the start of the period.
- Correlation with Accounts Payable and Revenue
- The fluctuation in turnover is closely linked to changes in accounts payable balances. In 2024, the turnover ratio peaked simultaneously with a period-low accounts payable balance of 3,189 million US dollars. Conversely, the 2026 decline in turnover aligns with a period-high accounts payable balance of 4,327 million US dollars. Revenue exhibited volatility, decreasing from a 2022 peak of 93,512 million US dollars to 87,693 million US dollars in 2024, before recovering to reach 94,720 million US dollars in 2026.
- Working Capital Analysis
- The sharp increase in turnover in 2024 suggests a temporary acceleration in the settlement of obligations. However, the subsequent downward trend through 2026 indicates a lengthening of the payment cycle. This shift suggests a strategic movement toward utilizing supplier credit more extensively to support the growth in revenue observed in the final year of the period.
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Working Capital Turnover
| May 31, 2026 | May 31, 2025 | May 31, 2024 | May 31, 2023 | May 31, 2022 | May 31, 2021 | ||
|---|---|---|---|---|---|---|---|
| Selected Financial Data (US$ in millions) | |||||||
| Current assets | 27,903) | 18,386) | 18,207) | 18,610) | 20,365) | 20,580) | |
| Less: Current liabilities | 18,912) | 15,411) | 13,355) | 13,586) | 14,274) | 13,660) | |
| Working capital | 8,991) | 2,975) | 4,852) | 5,024) | 6,091) | 6,920) | |
| Revenue | 94,720) | 87,926) | 87,693) | 90,155) | 93,512) | 83,959) | |
| Short-term Activity Ratio | |||||||
| Working capital turnover1 | 10.53 | 29.55 | 18.07 | 17.94 | 15.35 | 12.13 | |
| Benchmarks | |||||||
| Working Capital Turnover, Competitors2 | |||||||
| Uber Technologies Inc. | — | 31.09 | 57.19 | 20.23 | 80.50 | — | |
| Union Pacific Corp. | — | — | — | — | — | — | |
| United Airlines Holdings Inc. | — | — | — | — | 681.14 | 6.98 | |
| United Parcel Service Inc. | — | 25.89 | 31.74 | 52.36 | 24.61 | 13.21 | |
| Working Capital Turnover, Sector | |||||||
| Transportation | — | — | 107.59 | 75.38 | 32.61 | 15.90 | |
| Working Capital Turnover, Industry | |||||||
| Industrials | — | 14.80 | 10.82 | 13.27 | 10.34 | 6.90 | |
Based on: 10-K (reporting date: 2026-05-31), 10-K (reporting date: 2025-05-31), 10-K (reporting date: 2024-05-31), 10-K (reporting date: 2023-05-31), 10-K (reporting date: 2022-05-31), 10-K (reporting date: 2021-05-31).
1 2026 Calculation
Working capital turnover = Revenue ÷ Working capital
= 94,720 ÷ 8,991 = 10.53
2 Click competitor name to see calculations.
Analysis of the operational efficiency regarding working capital management shows a distinct shift in financial positioning between 2021 and 2026. While revenue exhibited moderate fluctuations with an overall increase by the end of the period, working capital underwent a prolonged contraction followed by a substantial expansion.
- Working Capital Turnover Trend (2021–2025)
- A consistent upward trend in the working capital turnover ratio is observed, rising from 12.13 in 2021 to a peak of 29.55 in 2025. This trajectory was primarily driven by a steady decline in working capital, which decreased from US$ 6,920 million to US$ 2,975 million. Given that revenue remained relatively stable—fluctuating between US$ 83,959 million and US$ 93,512 million—the rising ratio indicates an increase in the intensity of revenue generation relative to the available working capital, suggesting a lean approach to short-term asset management.
- Analysis of the 2026 Reversal
- A significant reversal in the turnover trend occurs in 2026, where the ratio drops sharply to 10.53, the lowest point in the analyzed timeframe. This decline is directly linked to a substantial increase in working capital, which surged to US$ 8,991 million. Despite revenue reaching a period peak of US$ 94,720 million, the magnitude of the increase in working capital significantly outweighed the revenue growth, leading to a reduction in turnover efficiency. This shift suggests a strategic reallocation of resources toward current assets or a significant adjustment in short-term liability obligations.
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Average Inventory Processing Period
| May 31, 2026 | May 31, 2025 | May 31, 2024 | May 31, 2023 | May 31, 2022 | May 31, 2021 | ||
|---|---|---|---|---|---|---|---|
| Selected Financial Data | |||||||
| Inventory turnover | 141.58 | 146.06 | 142.82 | 149.26 | 146.80 | 143.03 | |
| Short-term Activity Ratio (no. days) | |||||||
| Average inventory processing period1 | 3 | 2 | 3 | 2 | 2 | 3 | |
| Benchmarks (no. days) | |||||||
| Average Inventory Processing Period, Competitors2 | |||||||
| Union Pacific Corp. | — | 12 | 12 | 11 | 11 | 10 | |
| United Airlines Holdings Inc. | — | 10 | 10 | 11 | 9 | 15 | |
| United Parcel Service Inc. | — | 3 | 3 | 4 | 3 | 3 | |
| Average Inventory Processing Period, Sector | |||||||
| Transportation | — | 5 | 5 | 5 | 4 | 4 | |
| Average Inventory Processing Period, Industry | |||||||
| Industrials | — | 85 | 90 | 86 | 85 | 91 | |
Based on: 10-K (reporting date: 2026-05-31), 10-K (reporting date: 2025-05-31), 10-K (reporting date: 2024-05-31), 10-K (reporting date: 2023-05-31), 10-K (reporting date: 2022-05-31), 10-K (reporting date: 2021-05-31).
1 2026 Calculation
Average inventory processing period = 365 ÷ Inventory turnover
= 365 ÷ 141.58 = 3
2 Click competitor name to see calculations.
The analysis of short-term operating activity indicates a highly efficient inventory management cycle, characterized by exceptionally high turnover rates and minimal holding periods over the period spanning May 31, 2021, to May 31, 2026.
- Inventory Turnover
- A fluctuating but consistently high trend is observed in the inventory turnover ratio. The ratio rose from 143.03 in 2021 to a peak of 149.26 in 2023, followed by a correction to 142.82 in 2024. A subsequent increase to 146.06 was recorded in 2025 before the ratio reached its period low of 141.58 in 2026. These elevated figures reflect an extremely rapid cycle of inventory replacement.
- Average Inventory Processing Period
- The average inventory processing period demonstrates significant stability, oscillating narrowly between 2 and 3 days. The duration was 3 days in 2021, decreased to 2 days during 2022 and 2023, returned to 3 days in 2024, dropped again to 2 days in 2025, and closed at 3 days in 2026. This consistency underscores a lean operational model where inventory is processed and transitioned almost immediately.
The strong correlation between the high turnover ratios and the minimal processing duration suggests an optimized supply chain. This operational efficiency ensures that minimal capital is tied up in stagnant inventory, thereby maintaining high liquidity within the company's operational assets.
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Average Receivable Collection Period
| May 31, 2026 | May 31, 2025 | May 31, 2024 | May 31, 2023 | May 31, 2022 | May 31, 2021 | ||
|---|---|---|---|---|---|---|---|
| Selected Financial Data | |||||||
| Receivables turnover | 7.47 | 7.73 | 8.69 | 8.85 | 7.88 | 6.96 | |
| Short-term Activity Ratio (no. days) | |||||||
| Average receivable collection period1 | 49 | 47 | 42 | 41 | 46 | 52 | |
| Benchmarks (no. days) | |||||||
| Average Receivable Collection Period, Competitors2 | |||||||
| Uber Technologies Inc. | — | 27 | 28 | 33 | 32 | 51 | |
| Union Pacific Corp. | — | 28 | 29 | 31 | 28 | 29 | |
| United Airlines Holdings Inc. | — | 15 | 14 | 13 | 15 | 25 | |
| United Parcel Service Inc. | — | 46 | 44 | 45 | 46 | 47 | |
| Average Receivable Collection Period, Sector | |||||||
| Transportation | — | 36 | 34 | 35 | 38 | 45 | |
| Average Receivable Collection Period, Industry | |||||||
| Industrials | — | 44 | 40 | 42 | 45 | 47 | |
Based on: 10-K (reporting date: 2026-05-31), 10-K (reporting date: 2025-05-31), 10-K (reporting date: 2024-05-31), 10-K (reporting date: 2023-05-31), 10-K (reporting date: 2022-05-31), 10-K (reporting date: 2021-05-31).
1 2026 Calculation
Average receivable collection period = 365 ÷ Receivables turnover
= 365 ÷ 7.47 = 49
2 Click competitor name to see calculations.
An analysis of short-term operating activity ratios reveals a cyclical trend in the efficiency of receivable management. The period from 2021 to 2023 was characterized by an increase in collection efficiency, followed by a gradual deterioration in performance through 2026.
- Receivables Turnover
- The turnover ratio demonstrated a consistent upward trajectory from 6.96 in 2021, reaching a peak of 8.85 in 2023. This improvement indicates an increased velocity in converting accounts receivable into cash. However, a downward trend emerged after 2023, with the ratio declining to 8.69 in 2024, 7.73 in 2025, and 7.47 in 2026, signaling a reduction in the frequency of receivable turnovers.
- Average Receivable Collection Period
- The collection period exhibited an inverse correlation with the turnover ratio, decreasing from 52 days in 2021 to a minimum of 41 days in 2023. This contraction suggests optimized credit management and faster payment realizations. Following 2023, the collection period expanded steadily to 42 days in 2024, 47 days in 2025, and 49 days in 2026, reflecting a slowing of the cash conversion cycle.
The data indicates that peak operational efficiency regarding receivables was achieved in 2023. The subsequent three-year trend shows a regression toward the initial 2021 levels, which may suggest a shift in credit policies or a decline in the promptness of customer settlements.
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Operating Cycle
| May 31, 2026 | May 31, 2025 | May 31, 2024 | May 31, 2023 | May 31, 2022 | May 31, 2021 | ||
|---|---|---|---|---|---|---|---|
| Selected Financial Data | |||||||
| Average inventory processing period | 3 | 2 | 3 | 2 | 2 | 3 | |
| Average receivable collection period | 49 | 47 | 42 | 41 | 46 | 52 | |
| Short-term Activity Ratio | |||||||
| Operating cycle1 | 52 | 49 | 45 | 43 | 48 | 55 | |
| Benchmarks | |||||||
| Operating Cycle, Competitors2 | |||||||
| Union Pacific Corp. | — | 40 | 41 | 42 | 39 | 39 | |
| United Airlines Holdings Inc. | — | 25 | 24 | 24 | 24 | 40 | |
| United Parcel Service Inc. | — | 49 | 47 | 49 | 49 | 50 | |
| Operating Cycle, Sector | |||||||
| Transportation | — | 41 | 39 | 40 | 42 | 49 | |
| Operating Cycle, Industry | |||||||
| Industrials | — | 129 | 130 | 128 | 130 | 138 | |
Based on: 10-K (reporting date: 2026-05-31), 10-K (reporting date: 2025-05-31), 10-K (reporting date: 2024-05-31), 10-K (reporting date: 2023-05-31), 10-K (reporting date: 2022-05-31), 10-K (reporting date: 2021-05-31).
1 2026 Calculation
Operating cycle = Average inventory processing period + Average receivable collection period
= 3 + 49 = 52
2 Click competitor name to see calculations.
The operating cycle exhibits a U-shaped trend over the analyzed six-year period, characterized by an initial contraction followed by a gradual expansion. Because the inventory processing component remains consistently marginal, the overall operating cycle is predominantly driven by fluctuations in the receivable collection period.
- Average Inventory Processing Period
- The duration for processing inventory remains stable and extremely low, fluctuating minimally between 2 and 3 days. This suggests a highly efficient, lean inventory management system where assets are converted to sales almost immediately, which is characteristic of a service-dominant business model.
- Average Receivable Collection Period
- A distinct trend is observed in the collection of receivables, which improved from 52 days in 2021 to a minimum of 41 days in 2023. This initial decrease indicates an increase in collection efficiency or a tightening of credit terms. However, from 2024 through 2026, a steady upward trend emerged, with the period extending to 49 days, suggesting a slowing of cash inflows from customers in the latter years.
- Operating Cycle
- The total operating cycle mirrors the movements of the receivable collection period, declining from 55 days in 2021 to 43 days in 2023 before rising back to 52 days by 2026. The high correlation between the operating cycle and the receivable collection period confirms that the company's short-term operating liquidity is primarily sensitive to the timing of customer payments rather than inventory turnover.
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Average Payables Payment Period
| May 31, 2026 | May 31, 2025 | May 31, 2024 | May 31, 2023 | May 31, 2022 | May 31, 2021 | ||
|---|---|---|---|---|---|---|---|
| Selected Financial Data | |||||||
| Payables turnover | 21.89 | 23.82 | 27.50 | 23.43 | 23.20 | 21.86 | |
| Short-term Activity Ratio (no. days) | |||||||
| Average payables payment period1 | 17 | 15 | 13 | 16 | 16 | 17 | |
| Benchmarks (no. days) | |||||||
| Average Payables Payment Period, Competitors2 | |||||||
| Uber Technologies Inc. | — | 12 | 12 | 13 | 14 | 34 | |
| Union Pacific Corp. | — | 12 | 13 | 13 | 12 | 13 | |
| United Airlines Holdings Inc. | — | 28 | 27 | 26 | 28 | 38 | |
| United Parcel Service Inc. | — | 27 | 25 | 25 | 27 | 28 | |
| Average Payables Payment Period, Sector | |||||||
| Transportation | — | 21 | 20 | 20 | 21 | 24 | |
| Average Payables Payment Period, Industry | |||||||
| Industrials | — | 46 | 42 | 45 | 47 | 47 | |
Based on: 10-K (reporting date: 2026-05-31), 10-K (reporting date: 2025-05-31), 10-K (reporting date: 2024-05-31), 10-K (reporting date: 2023-05-31), 10-K (reporting date: 2022-05-31), 10-K (reporting date: 2021-05-31).
1 2026 Calculation
Average payables payment period = 365 ÷ Payables turnover
= 365 ÷ 21.89 = 17
2 Click competitor name to see calculations.
The analysis of short-term operating activity reveals a fluctuating trend in the management of accounts payable from 2021 through 2026. There is a notable period of acceleration in payment cycles peaking in 2024, followed by a gradual return to previous payment durations.
- Payables Turnover
- A steady increase in the turnover ratio is observed from 21.86 in 2021 to a peak of 27.50 in 2024, indicating a higher frequency of supplier payments. Following this peak, the ratio entered a downward trend, decreasing to 23.82 in 2025 and ending at 21.89 in 2026, which aligns closely with the initial 2021 levels.
- Average Payables Payment Period
- The payment period exhibits a contraction from 17 days in 2021 to a low of 13 days in 2024, signifying a shortened window for settling obligations. This efficiency in payment duration was temporary, as the period expanded again to 15 days in 2025 and returned to the original 17-day baseline by 2026.
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Cash Conversion Cycle
| May 31, 2026 | May 31, 2025 | May 31, 2024 | May 31, 2023 | May 31, 2022 | May 31, 2021 | ||
|---|---|---|---|---|---|---|---|
| Selected Financial Data | |||||||
| Average inventory processing period | 3 | 2 | 3 | 2 | 2 | 3 | |
| Average receivable collection period | 49 | 47 | 42 | 41 | 46 | 52 | |
| Average payables payment period | 17 | 15 | 13 | 16 | 16 | 17 | |
| Short-term Activity Ratio | |||||||
| Cash conversion cycle1 | 35 | 34 | 32 | 27 | 32 | 38 | |
| Benchmarks | |||||||
| Cash Conversion Cycle, Competitors2 | |||||||
| Union Pacific Corp. | — | 28 | 28 | 29 | 27 | 26 | |
| United Airlines Holdings Inc. | — | -3 | -3 | -2 | -4 | 2 | |
| United Parcel Service Inc. | — | 22 | 22 | 24 | 22 | 22 | |
| Cash Conversion Cycle, Sector | |||||||
| Transportation | — | 20 | 19 | 20 | 21 | 25 | |
| Cash Conversion Cycle, Industry | |||||||
| Industrials | — | 83 | 88 | 83 | 83 | 91 | |
Based on: 10-K (reporting date: 2026-05-31), 10-K (reporting date: 2025-05-31), 10-K (reporting date: 2024-05-31), 10-K (reporting date: 2023-05-31), 10-K (reporting date: 2022-05-31), 10-K (reporting date: 2021-05-31).
1 2026 Calculation
Cash conversion cycle = Average inventory processing period + Average receivable collection period – Average payables payment period
= 3 + 49 – 17 = 35
2 Click competitor name to see calculations.
The Cash Conversion Cycle (CCC) exhibited a fluctuating trend over the six-year period analyzed, characterized by an initial improvement in efficiency followed by a gradual elongation. The cycle reached its optimal point in May 2023 before trending upward through May 2026.
- Average Inventory Processing Period
- This metric remained consistently low and stable, oscillating between 2 and 3 days throughout the entire period. The minimal duration indicates that inventory turnover is rapid and exerts negligible influence on the overall cash conversion timeline.
- Average Receivable Collection Period
- A significant V-shaped trend is observed in the collection of receivables. The period improved from 52 days in May 2021 to a low of 41 days in May 2023. However, a subsequent reversal occurred, with the collection period steadily increasing to 49 days by May 2026, suggesting a deceleration in the conversion of receivables into cash.
- Average Payables Payment Period
- The payables payment period demonstrated relative stability, remaining within a narrow range of 13 to 17 days. A slight dip to 13 days was recorded in May 2024, followed by a return to the 17-day baseline by May 2026.
- Cash Conversion Cycle Analysis
- The total CCC decreased from 38 days in May 2021 to 27 days in May 2023, reflecting a period of enhanced working capital efficiency. From May 2023 onward, the cycle lengthened to 35 days. This increase is primarily attributable to the extension of the receivable collection period, which outweighed the marginal fluctuations in inventory processing and payables payments.
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