Understand current ratio and quick ratio

Overview

Liquidity ratios measure a company's ability to pay short-term obligations using its liquid assets. The two most important liquidity ratios are the current ratio and the quick ratio (also called the acid-test ratio). These tell us: Can this company survive the next 12 months without raising more cash?

[!intuition] Why Liquidity Ratios Matter

Think of a company like a person with monthly bills. You have:

• Current assets = cash in wallet + money you'll receive soon (salary coming) + things you can quickly sell (TV, bike)
• Current liabilities = bills due this month (rent, credit card, loan payment)

If your bills are ₹50,000 but you only have ₹30,000 available, you're in trouble. Similarly, if a company has ₹10crore in bills due within a year but only ₹8 crore in liquid assets, it may default, go bankrupt, or be forced to sell assets at fire-sale prices.

WHY it matters to investors:

1. Survival risk – Companies with low liquidity can go bankrupt even if profitable long-term
2. Dilution risk – They may issue emergency equity, diluting your shares
3. Value trap – A "cheap" stock (low P/E) might be cheap because the market knows it's about to face a liquidity crisis

[!definition] Current Ratio

$\text{Current Ratio} = \frac{\text{Current Assets}}{\text{Current Liabilities}}$

WHAT each term means:

• Current Assets = Assets that will convert to cash within 12 months

  • Cash and cash equivalents
  • Accounts receivable (customers owe you)
  • Inventory (goods you'll sell)
  • Short-term investments
  • Prepaid expenses

• Current Liabilities = Obligations due within 12 months

  • Accounts payable (you owe suppliers)
  • Short-term debt
  • Current portion of long-term debt
  • Acrued expenses (salaries, taxes owed)

HOW to interpret:

• CR > 1.5 → Generally healthy (can pay bills1.5× over)
• CR = 1.0–1.5 → Acceptable for many industries, watch carefully
• CR < 1.0 → Red flag: Current liabilities exceed current assets
• CR > 3.0 → May indicate inefficient use of capital (hoarding cash instead of investing)

[!formula] Deriving the Current Ratio from First Principles

Start with the fundamental question: What's the buffer between what I have and what I owe?

$\text{Liquidity Buffer} = \text{Current Assets} - \text{Current Liabilities}$

This gives us working capital in absolute rupees. But absolute numbers don't let us compare companies of different sizes.

Make it scale-invariant: Divide both sides by Current Liabilities:

$\frac{\text{Current Assets} - \text{Current Liabilities}}{\text{Current Liabilities}} = \frac{\text{Current Assets}}{\text{Current Liabilities}} - 1$

$\text{Current Ratio} = \frac{\text{Current Assets}}{\text{Current Liabilities}}$

WHY this form?

• A ratio lets us compare: "For every ₹1 Iowe, how many ₹ do I have?"
• CR = 2.0 means "I have ₹2 for every ₹1 I owe" →100% buffer
• CR = 0.8 means "I have ₹0.80 for every ₹1 I owe" → 20% shortfall

[!definition] Quick Ratio (Acid-Test Ratio)

$\text{Quick Ratio} = \frac{\text{Current Assets} - \text{Inventory}}{\text{Current Liabilities}}$

Alternative formulation: $\text{Quick Ratio} = \frac{\text{Cash} + \text{Marketable Securities} + \text{Accounts Receivable}}{\text{Current Liabilities}}$

WHY exclude inventory?

Because inventory is the least liquid current asset:

1. Time to convert – May take months to sell through normal operations
2. Uncertain value – In a crisis, inventory sells at steep discounts (40–80% off)
3. Industry variation – Fashion/tech inventory becomes obsolete; commodity inventory holds value better

The Quick Ratio asks: "If customers stopped buying tomorrow, could you still pay your bills using only highly liquid assets?"

HOW to interpret:

• QR ≥ 1.0 → Excellent; can pay all short-term debts without selling inventory
• QR = 0.8–1.0 → Acceptable; some reliance on inventory turnover
• QR < 0.5 → Danger zone; heavily dependent on selling inventory to meet obligations

[!formula] Deriving Quick Ratio from Current Ratio

Start with the Current Ratio: $\text{CR} = \frac{\text{CA}}{\text{CL}}$

Problem: CA includes inventory, which may not be quickly convertible to cash.

Step 1 – Separate liquid vs. illiquid assets: $\text{Current Assets} = \text{Quick Assets} + \text{Inventory}$

where Quick Assets = Cash + Marketable Securities + Accounts Receivable

Step 2 – Substitute into Current Ratio: $\text{CR} = \frac{\text{Quick Assets} + \text{Inventory}}{\text{CL}}$

Step 3 – To get Quick Ratio, remove inventory: $\text{Quick Ratio} = \frac{\text{Quick Assets}}{\text{CL}} = \frac{\text{CA} - \text{Inventory}}{\text{CL}}$

WHY this matters: $\text{Quick Ratio} = \text{Current Ratio} - \frac{\text{Inventory}}{\text{CL}}$

If a company has CR = 2.0 but QR = 0.7, it means: $\frac{\text{Inventory}}{\text{CL}} = 2.0 - 0.7 = 1.3$

Interpretation: Inventory is 1.3× current liabilities – the company is dangerously dependent on selling inventory. A demand shock would be catastrophic.

[!example] Example 1: Healthy Manufacturing Company

Balance Sheet Extract (₹ Crores):

• Cash: 50

• Accounts Receivable: 80

• Inventory: 120

• Prepaid Expenses: 10

• Total Current Assets: 260

• Accounts Payable: 70

• Short-term Debt: 50

• Accrued Expenses: 30

• Total Current Liabilities: 150

Calculate Current Ratio: $\text{CR} = \frac{260}{150} = 1.73$

Why this step? We divide total current assets by total current liabilities to get the coverage multiple.

Calculate Quick Ratio: $\text{QR} = \frac{260 - 120}{150} = \frac{140}{150} = 0.93$

Why this step? We subtract inventory (120) because it's not quickly convertible, leaving only cash, receivables, and marketable assets.

Interpretation:

• CR = 1.73 → Healthy; company has 73% buffer above obligations
• QR = 0.93 → Acceptable; even without selling inventory, company can cover 93% of short-term debts
• Gap = 1.73 - 0.93 = 0.80 → Inventory represents 80% of current liabilities, moderate dependence

Investment Signal: ✅ Adequate liquidity for normal operations

[!example] Example 2: Retail Chain in Distress

Balance Sheet Extract (₹ Crores):

• Cash: 20

• Accounts Receivable: 30 (low, because retail is mostly cash sales)

• Inventory: 300 (high, unsold seasonal stock)

• Total Current Assets: 350

• Accounts Payable: 150

• Short-term Debt: 100

• Total Current Liabilities: 250

Calculate Current Ratio: $\text{CR} = \frac{350}{250} = 1.40$

Why this step? At first glance, CR looks acceptable (>1.0).

Calculate Quick Ratio: $\text{QR} = \frac{350 - 300}{250} = \frac{50}{250} = 0.20$

Why this step? Removing inventory reveals the company only has ₹0.20 of liquid assets for every ₹1owed.

Interpretation:

• CR = 1.40 → Looks okay superficially
• QR = 0.20 → 🚨 Critical danger: Only 20% of obligations covered by liquid assets
• Gap = 1.20 → Company is 120% leveraged on inventory – must sell 100% of inventory at full price to survive

WHY this is dangerous: If sales drop 30% or inventory devalues (fashion out of season), the company defaults immediately.

Investment Signal: ⛔ Avoid or short-sell; liquidity crisis imminent

[!example] Example 3: Software Company (Asset-Light Business)

Balance Sheet Extract (₹ Crores):

• Cash: 200

• Accounts Receivable: 100

• Inventory: 5 (minimal, just office supplies)

• Total Current Assets: 305

• Accounts Payable: 40

• Deferred Revenue: 60 (customers prepaid subscriptions)

• Total Current Liabilities: 100

Calculate Current Ratio: $\text{CR} = \frac{305}{100} = 3.05$

Calculate Quick Ratio: $\text{QR} = \frac{305 - 5}{100} = \frac{300}{100} = 3.00$

Interpretation:

• CR ≈ QR → Almost no inventory; all assets are liquid
• Both ratios > 3.0 → Extremely strong liquidity position
• Deferred revenue is a liability but represents prepaid subscriptions (future revenue already secured)

WHY software/SaaS companies have high liquidity:

1. No manufacturing inventory
2. High gross margins (80%+)
3. Subscription revenue creates cash upfront
4. Low capital intensity

Investment Signal: ✅ Excellent financial health; could survive years without revenue

[!mistake] Common Mistake 1: "Higher Ratios Are Always Better"

The Wrong Idea: "If CR = 2.0 is good, then CR = 5.0 must be great! Maximum safety!"

Why It Feels Right: More buffer = more safety from default. Logical, right?

The Steel-Man (Why It's Appealing): For risk-averse investors (especially retirees), a company with CR = 5.0 seems impervious to economic shocks. You're paying for sleep-at-night quality.

Why It's Actually Wrong: Excess liquidity indicates inefficient capital allocation:

1. Opportunity cost – That cash could be:

   • Invested in R&D or expansion (growing future earnings)
   • Paid as dividends (returning cash to shareholders)
   • Used for buybacks (increasing EPS)

2. Inflation drag – Cash earns ~4-6% in savings; equity investments return ~12-15% long-term

3. Management signal – Hoarding cash often means management has no good ideas for growth

The Fix: Look for context:

• Cyclical industries (automobiles, real estate) benefit from CR = 2.0–2.5 as a recession buffer
• Growth companies (tech, pharma) should have CR = 1.5–2.0 and deploy excess cash into R&D
• CR > 3.0 is only justified if:
  • Company is planning a major acquisition
  • Industry is facing regulatory uncertainty
  • Company is in turnaround mode, rebuilding credibility

Rule of Thumb: $1.5 \leq \text{Optimal CR} \leq 2.5 \text{ (for most industries)}$

[!mistake] Common Mistake 2: "Quick Ratio < 1.0 Means Certain Bankruptcy"

The Wrong Idea: "QR = 0.7 means the company will default. Sell immediately!"

Why It Feels Right: If quick assets don't cover liabilities, there's a mathematical shortfall. Seems cut-and-dried.

The Steel-Man: Conservative creditors (banks, bond investors) use QR > 1.0 as a loan covenant. Breaking it triggers default clauses.

Why It's Actually Wrong: Many healthy businesses operate with QR < 1.0by design:

Industries where QR < 1.0 is normal:

1. Supermarkets – Inventory turns over in 7-14 days; suppliers extend30-60 day payment terms

   • QR = 0.3–0.5 is standard
   • Why it works: Inventory converts to cash before payables are due

2. Fast Fashion (Zara, H&M) – QR = 0.6–0.8

   • Why it works: Just-in-time inventory, rapid turnover (30-45 days)

3. Restaurants – QR = 0.2–0.4

   • Why it works: Food inventory turns daily; pay suppliers weekly

The Fix: Check inventory turnover ratio: $\text{Inventory Turnover} = \frac{\text{Cost of Goods Sold}}{\text{Average Inventory}}$

Safe if: $\frac{365}{\text{Inventory Turnover}} < \text{Average Payable Period}$

In other words: If you sell inventory faster than you must pay suppliers, low QR is fine.

Example Calculation:

• Supermarket: Inventory Turnover = 26×/year → 14 days to sell
• Payable Period = 45 days
• 14 < 45 ✅ Safe despite QR = 0.4

[!mistake] Common Mistake 3: "Ignoring the Quality of Current Assets"

The Wrong Idea: "CR = 2.0, so liquidity is fine. Next metric."

Why It Feels Right: The ratio is above the1.5 threshold; what more do you need?

Why It's Actually Wrong: Not all current assets are created equal. Accounts Receivable quality varies wildly:

Red Flags in Receivables:

1. Days Sales Outstanding (DSO) increasing – Customers paying slower (cash flow problem brewing)
2. High concentration – 50% of receivables from one customer (if they default, you're toast)
3. Aging receivables – 40% overdue >90 days (likely uncollectible)

How to Check: $\text{DSO} = \frac{\text{Accounts Receivable}}{\text{Revenue}} \times 365$

Healthy DSO by industry:

• B2B Software: 45-60 days
• Manufacturing: 60-75 days
• Construction: 75-90 days

The Fix: Drill into notes to financial statements:

• Allowance for doubtful accounts – Is it growing as % of receivables?
• Receivables aging schedule – What % is >90 days overdue?
• Related party receivables – Money "owed" by company insiders (often never paid)

Adjusted Quick Ratio: $\text{Adjusted QR} = \frac{\text{Cash} + \text{Marketable Securities} + (0.85 \times \text{Receivables})}{\text{CL}}$

Assume 15% of receivables are uncollectible to be conservative.

[!recall]- Feynman Technique: Explain to a 12-Year-Old

Imagine you and your friend start a lemonade stand. You have:

• ₹100 in your pocket (cash)
• ₹50 that kids promised to pay you tomorrow (they drank lemonade on credit)
• ₹200 worth of lemons, sugar, and cups (inventory)
• Total stuff: ₹350

But you also owe:

• ₹150 to the grocery store (you bought supplies on credit)
• ₹50 to your mom (she lent you startup money)
• Total you owe: ₹200

Current Ratio = ₹350 ÷ ₹200 = 1.75 This means "For every ₹1 I owe, I have ₹1.75." You're in good shape!

But wait... What if it starts raining for a week and nobody buys lemonade? Your ₹200 of lemons and sugar just sits there roting. Can you still pay back the grocery store and your mom?

Quick Ratio = (₹100 cash + ₹50 owed to you) ÷ ₹200 = 0.75 Now it's "For every ₹1 I owe, I have only ₹0.75 in cash and money coming in." You're ₹50 short!

The lesson: The Quick Ratio is like asking "Can I pay my debts even if my inventory becomes useless?" It's a stricter, more honest test. Companies lie about inventory value all the time (they say lemons are worth ₹200, but rotten lemons are worth ₹0), but they can't lie about cash in the bank.

[!mnemonic] Memory Aid: CACL vs. QACL

Current Ratio = CACL

• Current Assets
• Current Liabilities
• "See A-Cool" company = comfortable liquidity

Quick Ratio = QACL

• Quick Assets (no inventory)
• Current Liabilities
• "Quick-Ull" = Urgent test, like acid burning away the fluff

Visual Mnemonic:

• Current Ratio = 🏦💰📦 (bank + money + boxes of inventory)
• Quick Ratio = 🏦💰 (bank + money only, boxes gone)

Connections

• Working Capital Management – Current Ratio measures working capital efficiency
• Cash Conversion Cycle – Links inventory turnover to liquidity needs
• Debt Service Coverage Ratio – Long-term version of liquidity analysis
• Altman Z-Score – Uses working capital/total assets (derived from CR) to predict bankruptcy
• Operating Cash Flow Ratio – Better liquidity metric (uses actual cash flow, not accounting assets)
• Balance Sheet Analysis – Where to find current assets and liabilities
• Financial Statement Fraud – Companies inflate inventory to manipulate CR
• Inventory Turnover Ratio – Complements Quick Ratio analysis

#flashcards/stock-market

What does the current ratio measure? :: Current Ratio = Current Assets ÷ Current Liabilities. It measures whether a company can pay its short-term obligations (due within 12 months) using its current assets.

Concept Map

Hinglish (regional understanding)