The Liquidity Flood: Why Market Downturns Are Shorter and Shallower Than Ever

Market sell-offs now feel increasingly familiar: sharp headlines, fast declines, and then, often before investors can reposition - markets recover. What once felt like prolonged, grinding bear markets* now resemble acute shocks that resolve with surprising speed.

In a recent episode of The Compound and Friends podcast, hosts Josh Brown and Michael Batnick, alongside guest Garrett Baldwin, explored whether this pattern reflects something deeper - whether massive and persistent liquidity inflows are fundamentally changing the nature of market downturns.

The scale is staggering. US M2 money supply grew from approximately $15.45 trillion in February 2020 to circa $22 trillion by 2022 -adding roughly $6.5 trillion in just two years. For context, it took 20 years (2000–2020) for M2 to grow by about $10.85 trillion.

This explosive monetary expansion, combined with automated pension contributions, corporate buybacks, retail ‘buy the dip’ behaviour, and faster government intervention, may be creating a fundamentally different market structure.

The paradox is striking, while the 24-hour news cycle delivers more frequent volatility, the duration and depth of downturns appear to be shrinking

From Chronic to Acute: Bear Markets Are Getting More Frequent and Shorter

Between 1900 and 2020 there have been bear markets circa every 3.5 years. In the last decade there have been bear markets circa every 2.5 years (when you include markets within 1% of a bear market).

The March 2020 COVID crash lasted just 33 days from peak to trough, the fastest on record. 

Five Forces Reshaping Market Dynamics

There are five main forces working together to potentially create a system where liquidity arrives faster than fear compounds:

1. The Fed: Massive Money Supply Expansion

The Fed's balance sheet expanded from $4 trillion to nearly $9 trillion from 2020 to 2022.

This massive expansion, combined with the Fed's willingness to intervene quickly during market stress, has created the "Fed Put" - an expectation of support during downturns. Whether this persists remains to be seen, but it has undeniably impacted recent bear market reversals.

 2. Retail Investors: The Reflex Buyers

Commission-free trading has fundamentally changed retail behaviour. The buy the dip mentality emerged around fifteen years ago, coinciding with Quantitative Easing (QE), and now adds liquidity precisely when markets need it most. During the COVID crash, retail investors deployed capital into the market, helping fuel one of the quickest recoveries in history.

 3. Institutional Flows: The Autopilot

Global pension assets have grown dramatically over the past decade, with tens of billions of dollars flowing into global equities each month through automated contributions. These flows continue regardless of headlines, valuations, or market sentiment.

• In the United States, retirement assets total approximately $45 trillion, with steady payroll contributions feeding markets each and every month.
• In Australia, the superannuation system holds over AUD $4 trillion, with mandatory contribution rates increasing to 12% from July 2025. 

• Ireland’s auto-enrolment scheme will initially inject approximately €60 million per month into markets – modest at first but structurally increasing over time as participation and contribution rates rise.

 This is a growing trend across the world. This structural bid wasn't as present in previous bear markets as it is now.

 4. Corporations: The Floor

Large, cash-rich corporations, particularly in the technology sector, have deployed trillions of dollars cumulatively on share buybacks over the past decade. Buybacks often accelerate during periods of market weakness, providing an additional source of demand when prices fall.

 5. Government: The Mandate

Policy responses have become faster in an era where prolonged market drawdowns carry economic and political costs. There is a tendency for aggressive policy stances to soften when financial markets react negatively, reinforcing expectations of policy reversal during periods of stress.

Similarly, central banks now communicate more openly about financial stability concerns, often signalling support when volatility spikes.

The Multiplier Effect: Why Flows Matter

Harvard economist Xavier Gabaix and University of Chicago's Ralph Koijen's 2021 research, "The Inelastic Markets Hypothesis," suggests $1 of inflows may increase market value by $3-$8 (central estimate ~ $5). With passive strategies at circa 60% of the US market, index funds deploy capital regardless of valuation - not because stocks are cheap, but because they have mandate obligations.

When the five forces combine with this framework, it offers an explanation for why recent bear markets resolve so quickly - systematic buying may overwhelm selling faster than in previous decades.

 The Paradox: More Volatility, Shorter Downturns

The 24-hour news cycle creates constant shocks - each headline triggers algorithmic trading and sentiment swings, creating frequent volatility. However, duration is determined by liquidity, not headlines. Automated pensions don't stop, buybacks accelerate, the Fed signals support, retail piles in. Result: acute volatility but potentially faster recovery.

Implications for Investors:

20%+ Drawdowns Will Still Occur.

These factors above don't eliminate bear markets - volatility is inherent to equity investing which is why they return more than lower risk assets such as cash. Significant drawdowns of 20% or more will continue.

But Waiting May Prove Difficult

If corrections resolve in months rather than years, timing becomes harder. March 2020 illustrated this: a 34% decline followed by the fastest recovery to new highs (5 months). Those waiting for a "real" bear market found themselves waiting through successive all-time highs.

The Path Forward:

Regardless of how long downturns last, investors should focus on matching assets to liabilities within a long-term financial plan. Capital needed in the short term should be appropriately protected, while long-term goals remain aligned with growth assets such as equities.

Conclusion

We may have entered an era where liquidity dynamics have rewired the drawdown experience. The combination of Fed money expansion (40% of M2 in 2 years), retail buy the dip behaviour, massive monthly pension flows, trillions in stock buybacks, and policy sensitivity creates a different structure than 20 years ago.

Those waiting for prolonged downturns may be disappointed. Volatility will occur - 20%+ drawdowns are inevitable - but they may be shallower and shorter than history suggests. By the time certainty arrives, markets may already be at new highs.

Whether these forces persist remains uncertain. But investors with appropriate diversification, portfolios aligned to their long-term plans, and disciplined execution will be well-positioned for whatever comes next.

Further Reading

Dips Too Shall Pass. Derek Walpole (Biograph Wealth Advisors – Group CIO)

  *Bear Market: A decline of 20% or more from a recent peak

 Disclaimer: This analysis is for informational purposes only and should not be considered investment advice.