# Interpublic Group of Companies (IPG) — Investment Thesis

**Exchange:** NYSE  
**Coverage as of:** 2026-Q2  
**Updated:** 2026-05-18  
**Tier:** Free primer (steps 1 & 3 of 19)  
**Sibling pages:** /stocks/IPG/financials · /stocks/IPG/memo

> This page shows the free thesis context (business model + recent catalysts).
> The full investment thesis (moat analysis, DCF, scenarios, risk register) is available
> via GET /api/v1/research/IPG/memo ($2.00, Bearer token).

## Business Model

---
ticker: IPG
step: 01
generated: 2026-05-13
source: quick-research
note: acquired
---

### Interpublic Group of Companies (IPG) — Business Overview

> **Note: IPG was acquired by Omnicom Group (OMC) and the merger closed on November 26, 2025. IPG no longer trades as an independent public company. For research on the combined entity, see the OMC research files.**

#### Business Description (Historical — Pre-Acquisition)
Interpublic Group was one of the world's four largest global advertising holding companies, operating agency networks including McCann Worldgroup, FCB (Foote, Cone & Belding), MullenLowe, and media networks UM (Universal McCann) and Initiative. IPG also owned specialized agencies Weber Shandwick (PR), FutureBrand, and Kinesso (data/identity platform). IPG served Fortune 500 clients across consumer goods, automotive, pharma, financial services, and tech.

#### Acquisition by Omnicom
- **Announced**: December 2024
- **FTC Approval**: June 2025
- **Closed**: November 26, 2025
- **Terms**: Omnicom acquired IPG in an all-stock deal; IPG shareholders received Omnicom shares
- **Combined entity**: World's largest advertising holding company with $25B+ pro forma revenue
- **Synergy target**: $750M annual cost synergies by Year 3

See `/Users/guy/Desktop/Stocks/OMC/` for full research on the combined Omnicom-IPG entity.

## Recent Catalysts

---
ticker: IPG
step: 12
generated: 2026-05-13
source: quick-research
note: acquired
---

### Interpublic Group of Companies (IPG) — Investment Catalysts & Risks

> **Note: IPG was acquired by Omnicom Group (OMC) — merger closed November 26, 2025. IPG no longer trades as an independent public company. This file is retained for historical reference only.**

#### Status
IPG is no longer an independent investable entity. The company was merged into Omnicom Group in an all-stock transaction. Former IPG shareholders received Omnicom shares. The combined entity trades under ticker **OMC** on the NYSE.

For bull/bear analysis on the combined Omnicom-IPG entity, including the $750M synergy thesis and client conflict risks, see:
- `/Users/guy/Desktop/Stocks/OMC/Step_12_Catalysts.md`

#### Research Date
Generated: 2026-05-13

## Full Investment Thesis (Premium)

The full research tier adds these thesis-critical dimensions:

- Moat Analysis — durable competitive advantages, switching costs, network effects
- Investment Thesis — variant perception, what has to be true, why market may be wrong
- Bull / Base / Bear Scenarios — probability weights, catalysts, price targets
- Risk Register — macro, competitive, execution, regulatory risks with materiality ratings
- Management Quality — capital allocation track record, incentive alignment
- DCF Valuation — 10-year model with sensitivity matrix

**API endpoint:** GET /api/v1/research/IPG/memo

## Navigation

- Overview: /stocks/IPG
- Financials: /stocks/IPG/financials
- Thesis (this page): /stocks/IPG/thesis
- Investment Memo: /stocks/IPG/memo
- Coverage universe: /stocks