# The Synergy Myth: Why 83% of Deals Fail by Day 100

**Category:** MA
**Author:** John Hotham
**Published:** 2026-09-17
**Read Time:** 1 min read

## Summary
M&A is an ego exercise unless backed by rigorous integration data. 83% of deals fail to deliver synergy. Don't be a statistic.

## Full Content
M&A volume in the UK has reached record highs in 2026, yet the success rate remains abysmal. 83% of deals fail to deliver the promised synergies within the first 100 days. Most acquisitions are little more than expensive ego exercises for CEOs who lack a post-merger integration plan.

Integration failure is rarely about the assets. It is about visibility and execution speed. If you cannot see the combined data across both entities by day 30, you have already lost. The market does not reward potential. It rewards realised value.

Simplif-i delivers the data rigour required to ensure your deal actually generates a return. Stop chasing synergies and start executing integration.

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Source: https://simplif-i.com/api/blog/readable/ma/ma-synergy-myth-20260917
Web Version: https://simplif-i.com/blog/ma/ma-synergy-myth-20260917
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