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acid-test_ratio

Acid-Test Ratio (also known as the 'Quick Ratio'). Imagine a company hits a sudden, rough patch and needs cash fast. The acid-test ratio is the financial health check that reveals if it can pay its immediate bills without having to sell off its stock of goods, which is often difficult to do quickly at a fair price. It's a liquidity ratio—a measure of a company's ability to meet its short-term obligations using its most liquid, or “quick,” assets. Unlike the broader current ratio, the acid-test ratio deliberately excludes inventory from the calculation. This provides a more conservative and, for many value investors, a more realistic picture of a company's ability to survive a cash crunch. It answers a simple but crucial question: if revenue suddenly stopped, could the company cover its debts for the next year with the cash and near-cash assets it has on hand? A strong ratio suggests financial resilience, a hallmark of a well-managed business.

How It Works

The logic is simple: subtract the least liquid current asset (inventory) from all current assets and see if what's left can cover all current liabilities.

The Formula

The most common way to calculate the ratio is:

Let's break down the components:

An Alternative Formula

Sometimes you'll see the formula presented in a more direct way, which gets you to the same result:

This version simply spells out the “quick assets” directly instead of starting with all current assets and subtracting inventory.

Interpreting the Ratio

A number is just a number until you give it context.

What's a Good Number?

The Value Investor's Perspective

For followers of value investing, the acid-test ratio is more than just a box-ticking exercise.

A Quick Example

Let's look at a fictional company, “Chic Furnishings plc,” a high-end furniture retailer. Here are some figures from its balance sheet:

Let's calculate the acid-test ratio:

  1. Step 1: Find the “quick assets.”
    • Quick Assets = Current Assets - Inventory
    • Quick Assets = £800,000 - £500,000 = £300,000
  2. Step 2: Calculate the ratio.
    • Acid-Test Ratio = Quick Assets / Current Liabilities
    • Acid-Test Ratio = £300,000 / £250,000 = 1.2

Interpretation: Chic Furnishings has an acid-test ratio of 1.2. This means it has £1.20 in liquid assets to cover every £1.00 of its immediate debts. Even if sales suddenly stopped, it appears to be in a solid position to meet its short-term obligations without having to hold a clearance sale on its expensive inventory.

Limitations to Keep in Mind

The acid-test ratio is a powerful tool, but it's not perfect.