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Defensive Interval Ratio Calculator

Calculate how many days a company can operate with current liquid assets

Calculate Defensive Interval Ratio

Current Assets

$

Cash on hand and short-term investments

$

Liquid securities easily convertible to cash

$

Money owed to the company by customers

Total Current Assets: $0

Annual Operating Data

$

Total yearly operating costs

$

Depreciation, amortization, and other non-cash items

Average Daily Cash Expenditures: $0

Defensive Interval Ratio Results

0.0
Days
$0
Current Assets
$0
Daily Expenditures

Formula: Defensive Interval Ratio = Current Assets ÷ Average Daily Expenditures

Calculation: $0 ÷ $0 = 0.0 days

Interpretation: The company can operate for 0.0 days using only liquid assets

Ratio Analysis

Example Calculation

Company Alpha Example

Cash & Equivalents: $10,000,000

Marketable Securities: $5,000,000

Accounts Receivable: $17,000,000

Annual Operating Expenses: $110,000,000

Annual Non-Cash Charges: $37,000,000

Calculation Steps

1. Current Assets = $10M + $5M + $17M = $32M

2. Daily Expenditures = ($110M - $37M) ÷ 365 = $200,000

3. DIR = $32M ÷ $200,000 = 160 days

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Liquidity Ratio Comparison

DIR

Defensive Interval Ratio

Days company can operate

Most specific liquidity measure

CR

Current Ratio

Current Assets ÷ Current Liabilities

General liquidity indicator

QR

Quick Ratio

Liquid Assets ÷ Current Liabilities

Excludes inventory

Interpretation Guide

⚠️

< 30 days

Poor liquidity, potential cash flow problems

⚠️

30-90 days

Adequate but monitor cash flow closely

90-180 days

Good liquidity, comfortable buffer

💰

> 180 days

Excellent but may indicate excess cash

Understanding Defensive Interval Ratio

What is Defensive Interval Ratio?

The Defensive Interval Ratio (DIR) is a liquidity ratio that measures how many days a company can sustain its operations using only its most liquid assets, without receiving any additional cash inflows or liquidating long-term assets.

Why is it Important?

  • Provides direct measure of financial resilience
  • Helps assess short-term financial health
  • More intuitive than other liquidity ratios
  • Useful for crisis scenario planning

Formula Components

DIR = Current Assets ÷ Average Daily Expenditures

  • Current Assets: Cash + Marketable Securities + Accounts Receivable
  • Average Daily Expenditures: (Annual Operating Expenses - Non-Cash Charges) ÷ 365
  • Non-Cash Charges: Depreciation, amortization, and other non-cash items

Note: Higher ratios indicate better liquidity but may suggest excess cash holdings.

Advantages of DIR

  • Easy to understand and interpret
  • Provides specific time frame
  • Focuses on most liquid assets only
  • Useful for trend analysis over time

Limitations to Consider

  • !Based on historical data, not future projections
  • !Assumes no additional cash inflows
  • !May not reflect seasonal variations
  • !Quality of receivables matters
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