This is the anomaly that distorts every valuation comp that touches it — and the baseline against which the "new normal" has to be read. It demonstrates, more vividly than any other period, how external tax and capital catalysts can override fundamentals and move a whole market. It's the third chapter of the deal-volume history.
§ 01 · Crash, then surgeThe Q4 2020 explosion.
The pandemic delivered an immediate shock — Q1 2020 fell to ~137 deals and Q2 to ~126, the lowest quarterly results in years. But the market proved extraordinarily resilient, rapidly adopting virtual diligence, remote management, and digital closings. By Q4 2020 it rebounded with violent force to ~290 transactions, nearly double the prior-year quarter, driven by pent-up demand and sellers accelerating closings ahead of anticipated tax increases. The full year closed at ~774 deals, up roughly 19%.
| The bubble, by the numbers | Value |
|---|---|
| FY 2020 transactions | ~774 (+19%) |
| FY 2021 transactions (all-time peak) | ~1,108 (+37%) |
| Q4 2021 (highest quarter ever) | ~384 |
| FY 2022 (front-loaded, then corrected) | ~1,031 (−7%) |
| PE/hybrid share at peak (2021) | 76% |
§ 02 · The 2021 peakAn all-time record.
The momentum carried straight into the most active twelve months the industry has recorded. 2021 reached ~1,108 announced transactions — a 37% jump, nearly double the pre-pandemic run rate — and activity ratcheted up sequentially to a Q4 2021 surge of ~384 deals, the single highest quarter ever. The volume was overwhelmingly institutional, with PE and hybrid buyers controlling 76% of transactions at the peak.
§ 03 · An artificial frenzyTax urgency meets dry powder.
The bubble was not organic growth — it was an engineered frenzy. The primary driver was widespread concern about anticipated capital-gains-rate increases, which pushed sellers to lock in favorable treatment and pulled forward timelines that might otherwise have taken years. That tax urgency collided with immense reserves of uninvested PE capital and the ongoing retirement wave, fueling a 25-month bubble from December 2020 through the end of 2022. The pattern echoes the smaller 2012 tax pull-forward — the same dynamic, an order of magnitude larger; the recurring mechanism is the tax-change avalanche.
§ 04 · The burstThe rate-shock correction.
The frenzy couldn't sustain itself against hostile macro. The bubble ended in 2022 when the fastest rate-hiking cycle in decades more than doubled rates through the year, sharply raising the cost of leveraged acquisition financing. The first half of 2022 stayed robust (a front-loaded ~1,031 deals), but the second half pulled back hard — volumes down 30–35% versus the prior year in Q3 and Q4 — marking the definitive end of the pandemic-era bubble. The lasting cautions: valuation comps from 2020–2022 are anomalous bubble-era data points, and the period created cohorts of both regret-sellers and regret-non-sellers. What came next, settling well above the pre-bubble baseline, is the new normal.
The 2021 peak wasn't demand — it was a deadline. A tax clock and a wall of capital pulled years of deals into 25 months, which is why every comp from the bubble needs an asterisk and every "I missed the top" needs context.
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Terminology on this shelf
- Pandemic paradox
- The phenomenon where COVID first cratered deal volume, then gave way to the largest M&A surge in industry history.
- 25-month bubble
- The hyperactive period from December 2020 through December 2022, driven by external pressure rather than organic growth.
- Capital-gains urgency
- The legislative catalyst where sellers rushed closings to beat anticipated tax-rate increases, inflating year-end volume.
- Dry powder
- Uninvested PE capital whose record levels in 2020–2021 fueled the frenzy.
- Virtual due diligence
- The remote-diligence adaptation the pandemic normalized — now a permanent baseline.