What is P/S Ratio? When to Use Price-to-Sales for Valuation
P/S ratio values a company based on revenue when profit does not exist yet.
Price-to-Sales (P/S) ratio divides a stock's market cap by its annual revenue. It is used when a company has no profit (making P/E impossible) or when revenue is a more stable and meaningful metric than volatile earnings. Common for tech startups, early-stage growth companies, and cyclical businesses.
If Zomato has a market cap of Rs.1,50,000 crore and annual revenue of Rs.15,000 crore, P/S is 10. You pay Rs.10 for every Rs.1 of revenue. Whether this is expensive depends on how much of that revenue will eventually convert to profit and how fast revenue is growing.
P/S Ratio = Market Cap / Annual Revenue (or Stock Price / Revenue per Share)
If market cap is Rs.80,000 Cr and revenue is Rs.20,000 Cr: P/S = 80,000 / 20,000 = 4x
When should you use P/S instead of P/E?
When the company is loss-making (no meaningful P/E). When earnings are cyclically depressed but revenue is stable. For comparing companies at different stages of profitability. For SaaS and platform businesses where revenue growth precedes profitability. P/S provides a baseline valuation when other metrics fail.
What is a good P/S ratio?
Below 1 is potentially undervalued for profitable companies. 1 to 3 is normal for established businesses. 3 to 10 for high-growth companies with path to profitability. Above 10 requires very high growth and margin potential. Always compare P/S within the same sector.
Evaluate loss-making and growth companies on Stockk Equity with comprehensive revenue and valuation data.
Discover upcoming high-growth IPOs at Stockk IPO where P/S is often the primary valuation metric.
Frequently Asked Questions
Is P/S useful for profitable companies?
Less necessary but still informative. For profitable companies, P/E and EV/EBITDA are better. P/S is a secondary metric. However, P/S can flag revenue overvaluation even in profitable companies. If P/S is 15 for a company with 5% margins, it is paying too much relative to revenue.
Does low P/S always mean undervaluation?
No. A company with P/S of 0.3 might be cheap, or it might have terrible margins, declining revenue, or heavy debt. Low P/S on a company with improving margins and growing revenue is genuinely interesting. Low P/S on a company losing money with no path to profitability is a trap. Use StockkAsk at stockk.trade/stockkask to assess margin trajectory alongside P/S.
How does P/S work for Indian e-commerce companies?
Indian e-commerce companies like Zomato, Nykaa, and Paytm were initially valued on P/S because they were unprofitable. As they approach profitability, the market shifts to P/E. The transition from P/S to P/E valuation often reprices the stock significantly.
Can I compare P/S across different industries?
Not meaningfully. A software company with 30% margins at P/S of 10 is different from a retailer with 3% margins at P/S of 0.5. The margin structure determines what is expensive or cheap at a given P/S. Compare only within the same industry.
What is EV/Sales and how is it different?
EV/Sales uses Enterprise Value (market cap plus debt minus cash) instead of market cap. It accounts for debt differences between companies. For companies with significant debt, EV/Sales is more appropriate than P/S because it includes the full capital structure.
Investments in securities market are subject to market risks. This article is for educational purposes only and does not constitute investment advice.
INDIRA SECURITIES PRIVATE LIMITED : SEBI REG. NO.: INZ000188930, NSE TMID: 12866, BSE TMID: 663, CDSL DPID: 17000, MCX TM ID: 56470, NCDEX TM ID: 01277, CDSL REG.NO.: IN-DP-90-2015, CIN:U67120MP1996PTC085111, RA SEBI REG. No.: INH000023269, IA SEBI REG No.: INA000021410
