# Sum of the Parts Valuation

> Sum of the parts values each business segment separately and adds them up. Learn the method, the conglomerate discount, a worked example and how it spots catalysts.

Source: https://learn.tradelabsai.com/fundamentals/sum-of-the-parts-valuation/  
Track: Fundamental Analysis · Level: Intermediate · Updated: 2026-10-03  
Publisher: TradeLabs AI (https://tradelabsai.com). Education, not financial advice.  
Cite as: TradeLabs Learn, "Sum of the Parts Valuation", https://learn.tradelabsai.com/fundamentals/sum-of-the-parts-valuation/

Some companies run several very different businesses: a technology company with a cloud division and an advertising division, or an industrial group with aerospace, healthcare and energy units. Valuing them with a single multiple can be misleading, because each segment deserves its own valuation. Sum of the parts (SOTP) analysis values each segment separately, adds them together and adjusts for debt and corporate costs. It often reveals a gap between the company's market value and the value of its pieces, known as the conglomerate discount.

## The method

1. **Identify the segments** using the company's segment reporting.
2. **Value each segment** with appropriate methods, usually multiples of comparable pure play companies, sometimes a DCF.
3. **Add other assets:** cash, stakes in other companies, real estate.
4. **Subtract** net debt, pension deficits and capitalised corporate costs.
5. **Divide by shares** for value per share.
6. **Compare with the share price.**

## Worked example

**Example: A three segment company**
| Segment | EBITDA ($m) | Peer EV/EBITDA | Segment value ($m) |
|---|---|---|---|
| Software | 300 | 20x | 6,000 |
| Industrial equipment | 500 | 10x | 5,000 |
| Consumer products | 200 | 12x | 2,400 |
| Corporate costs | (100) | 10x | (1,000) |
| **Enterprise value** | | | **12,400** |
| Plus: stake in listed company | | | 800 |
| Less: net debt | | | (3,000) |
| **Equity value** | | | **10,200** |

With 200 million shares, SOTP value is $51 per share. If the stock trades at $40, it sits at about a 22% discount to the sum of its parts.

## Why conglomerate discounts exist

| Reason | Explanation |
|---|---|
| Complexity | Harder for investors to analyse |
| Capital allocation concerns | Cash from strong units may fund weak ones. See [Capital Allocation and Management](https://learn.tradelabsai.com/fundamentals/capital-allocation/) |
| Lack of focus | Management attention spread thin |
| Investor mismatch | Growth investors and value investors may each want only part of the business |
| Corporate costs | Overhead that pure plays do not carry |
| Tax and structure | Separating units may cost money |

Research has documented conglomerate discounts on average, though estimates vary and some diversified companies trade at premiums.

## SOTP as a catalyst finder

A large SOTP discount suggests value could be unlocked through:

- **Spin offs:** separating a division into its own listed company. See [Spin-Offs](https://learn.tradelabsai.com/fundamentals/spin-offs/).
- **Asset sales** to buyers who value the unit more highly. See [Mergers and Acquisitions](https://learn.tradelabsai.com/fundamentals/mergers-and-acquisitions/).
- **Activist investors** pushing for breakups.
- **Better disclosure** to help investors value segments.

General Electric's split into three companies (GE HealthCare in 2023, GE Vernova in 2024, with the remaining GE Aerospace) was widely discussed as an attempt to close a conglomerate discount.

## Challenges

- **Segment data is limited:** companies may not disclose full profit or cash flow by segment.
- **Allocation of shared costs** is subjective.
- **Choosing peer multiples** for each segment adds uncertainty.
- **Dis synergies:** separated units may lose shared resources or scale.
- **Taxes and transaction costs** reduce the value of breakups.
- **The discount may persist** without a catalyst.

## Holding companies

SOTP is common for holding companies with stakes in listed and private businesses. These often trade at persistent discounts to net asset value, reflecting fees, taxes, governance concerns and limited control over underlying assets.

## Building the segment view

Start with the segment note in the annual report, which shows revenue and operating profit for each reportable segment. Add capital spending and assets by segment where disclosed. Then look for listed pure play competitors for each unit and note their multiples. Where a segment has no clear peer, a simple DCF or a range of multiples gives a reasonable estimate. See [Reading Financial Statements](https://learn.tradelabsai.com/fundamentals/reading-financial-statements/).

## Frequently asked questions

### What is a sum of the parts valuation?

A method that values each segment of a company separately and adds them together, adjusting for debt and corporate costs.

### What is a conglomerate discount?

When a diversified company trades below the combined value of its segments as if they were separate companies.

### How can a conglomerate discount close?

Through spin offs, asset sales, activist pressure or improved disclosure that helps investors value each business.

Next, learn to analyse profitability in [Revenue Growth and Margin Analysis](https://learn.tradelabsai.com/fundamentals/margin-analysis/).

## Continue learning

- Next lesson: [Revenue Growth and Margin Analysis](https://learn.tradelabsai.com/fundamentals/margin-analysis/)
- Previous lesson: [Comparable Companies and Precedent Transactions](https://learn.tradelabsai.com/fundamentals/comparable-companies/)
- Related: [Comparable Companies and Precedent Transactions](https://learn.tradelabsai.com/fundamentals/comparable-companies/): Comparable company analysis values a business using the multiples of similar companies. Learn how to pick peers, build a comps table and adjust for differences.
- Related: [Spin-Offs](https://learn.tradelabsai.com/fundamentals/spin-offs/): A spin off separates a business into a new listed company owned by existing shareholders. Learn how spin offs work, why they happen, forced selling and the evidence.
- Related: [Valuation Basics](https://learn.tradelabsai.com/fundamentals/valuation-basics/): Valuation estimates what a business is worth. Learn intrinsic vs relative valuation, the main multiples, how growth and risk affect value and common mistakes.
- Related: [Mergers and Acquisitions](https://learn.tradelabsai.com/fundamentals/mergers-and-acquisitions/): Mergers and acquisitions combine companies through cash or stock deals. Learn deal types, premiums, synergies, approvals and how target and buyer stocks react.
- Related: [Capital Allocation and Management](https://learn.tradelabsai.com/fundamentals/capital-allocation/): Capital allocation is how management spends a company's cash on reinvestment, deals, dividends, buybacks or debt. Learn how to judge good and bad decisions.