Sum-of-the-Parts

Some companies operate multiple, very different businesses, a conglomerate might own a cement plant, a hospitality chain, and a financial services arm. Valuing the whole entity with a single multiple or DCF is inappropriate because each segment has a different risk profile, growth rate, and appropriate comparable set.

Sum-of-the-parts (SOTP) valuation solves this by valuing each segment independently using the most relevant method, then adding them up. The equity value is then the sum of segment values minus consolidated net debt at the holding company level.

SOTP is the standard framework for analysing Indian conglomerates like the Tata Group entities, Bajaj Holdings, Aditya Birla Group companies, or diversified infrastructure players. It's also used when a company has significant listed or unlisted subsidiary stakes.

SOTP Framework:

1. Identify segments: Use Ind AS 108 segment disclosures. Separate operating segments (cement, hotels, finance) from associate/subsidiary stakes.

2. Value each segment independently:

   • Operating segments: DCF or EV/EBITDA (using relevant sector peers)
   • Listed subsidiary stakes: Market value of stake (% held × market cap of subsidiary)
   • Unlisted subsidiaries: DCF or P/B
   • Real estate / land: Separate realisable value estimate

3. Sum segment values = Enterprise Value of the conglomerate

4. Subtract: Holding company-level net debt and unallocated central costs (capitalised)

5. = Equity Value → divide by shares → value per share

Conglomerate / Holdco Discount: Market price of a conglomerate often trades below its SOTP value. This "holdco discount" arises from:

• Illiquidity of unlisted stakes
• Complexity discount (investors prefer pure plays)
• Concerns about capital allocation
• Cross-holdings (A owns B, B owns A, double-counting risk) Typical Indian holdco discounts range from 20–50%.