Efficiency Ratios: Inventory and Asset Turnover

This is Part 5 of the Fundamental Analysis series. If you have not read the earlier parts, start with Part 1: Liquidity Ratios, then move to Part 2: Valuation Ratios, Part 3: Profitability Ratios, and Part 4: Solvency Ratios.

Efficiency ratios measure how well a company uses its assets and manages its operations to generate revenue. They tell you whether the business is running lean or wasting resources.

Inventory Turnover Ratio

Inventory Turnover = Cost of Goods Sold / Average Inventory

A higher ratio means the company needs less average inventory to generate its sales — in other words, better efficiency. If the ratio is 4, it means the company replaces its entire inventory 4 times in a year, or the inventory turns over 4 times.

A lower ratio indicates inefficiency in inventory management. It may point to overstocking, inventory damage, or slow-moving inventory.

Walmart vs. Amazon — Inventory Turnover

Walmart's fiscal year ends January 31, 2026; Amazon's ends December 31, 2025 — both cover roughly the same 12-month period. Source: company annual filings, GuruFocus.

Both companies turn over their inventory roughly 9 times a year, replacing their entire stock about once every 40 days. Amazon edges ahead slightly at 9.30 vs. 9.10, despite running a very different fulfillment model.

Asset Turnover Ratio

Asset Turnover = Total Sales / Total Assets

This ratio shows how effectively a company uses its assets to generate sales — how much revenue it earns for every dollar of assets it owns.

However, a very high asset turnover can also signal low barriers to entry and more competition, since the business does not require heavy investment in assets.

Walmart vs. Amazon — Asset Turnover

Source: company annual filings, MacroTrends.

Walmart generates $2.51 for every dollar of assets, while Amazon generates only $0.88. The gap exists because Amazon has invested heavily in cloud infrastructure (AWS), data centers, and fulfillment technology.

JPMorgan Chase vs. Bank of America — Asset Turnover

Banks do not carry inventory like retail companies, so inventory turnover does not apply. However, asset turnover still reveals how efficiently a bank uses its massive balance sheet.

Source: company annual filings, SEC 10-K, MacroTrends.

Both banks have extremely low asset turnover because their balance sheets are dominated by loans, securities, and deposits. JPMorgan Chase generates slightly more revenue per dollar of assets than Bank of America.

Receivables Turnover Ratio

This ratio measures how efficiently a business collects its receivables.

Receivables Turnover = Net Credit Sales / Average Receivables

Sales fall into two types: cash sales and credit sales. Cash sales are received immediately — the company gets paid right away. Credit sales, on the other hand, create receivables — amounts owed by customers that the company must collect later.

If the ratio is 2, it means the company converts its average accounts receivable into cash 2 times a year. A higher ratio is better for the business.

A high receivables turnover shows:

• The company converts its receivables into cash faster.
• Customers are paying on time.
• The collection process is effective.

For a practical framework on how to apply these ratios when picking stocks, see How to Pick a Stock: Five-Step Framework.

All financial data sourced from company annual filings, SEC 10-K reports, GuruFocus, and MacroTrends.

Sources and references

• Inventory Turnover — Investopedia
• Asset Turnover Ratio — Investopedia
• Receivables Turnover Ratio — Investopedia

This analysis is for educational purposes only and does not constitute investment advice.