The Cyclical Nature of IPO Markets
IPO markets don't operate on a steady rhythm. They surge and stall in dramatic cycles that are driven by a complex interplay of market sentiment, interest rates, regulatory environment, and the supply of venture-backed companies ready to go public. Understanding these cycles is essential for investors who want to time their participation intelligently.
The data is striking: in 2021, 1,035 companies went public in the United States (including SPACs), raising over $315 billion. By 2022, that number collapsed to 181 offerings raising just $24 billion — a 92% decline in capital raised. The 2023-2024 recovery was gradual, and 2025-2026 has seen a meaningful reopening. These swings are not anomalies; they are the defining feature of IPO markets.
The Four Phases of an IPO Cycle
Phase 1: Recovery (The Window Opens)
After a period of market downturn, the first brave companies test the public markets. These "bellwether" IPOs are typically high-quality businesses with strong fundamentals that can command investor interest even in uncertain environments. Arm Holdings' September 2023 listing was a classic bellwether, signaling that institutional investors were ready to deploy capital again.
Recovery-phase IPOs tend to be well-priced and supported by strong underwriting syndicates. Investors who participate early in a recovery often capture the best risk-adjusted returns, as companies price conservatively to ensure successful debuts.
Phase 2: Expansion (The Boom)
Success breeds confidence. As bellwether IPOs perform well, more companies and their bankers gain confidence to proceed. The pace of issuance accelerates, and average IPO sizes grow. Investor appetite appears insatiable, and pricing becomes more aggressive.
During the expansion phase, first-day pops increase (sometimes dramatically), and even lower-quality companies find willing buyers. The 2020-2021 boom exemplified this perfectly: by mid-2021, companies with minimal revenue and no clear path to profitability were successfully raising billions at eye-watering valuations.
Phase 3: Peak (Euphoria)
The peak is characterized by maximum issuance volume, maximum valuation multiples, and minimum investor discrimination. SPACs proliferate. Celebrities launch blank-check companies. Companies with no revenue go public at $10 billion valuations. The phrase "this time is different" gains currency.
Historically, peak conditions are identifiable in real-time by several markers: first-day pops exceeding 50% become common, retail investor participation surges, and the quality of the IPO pipeline deteriorates noticeably. The dot-com bubble's peak in early 2000 and the SPAC mania of early 2021 are textbook examples.
Phase 4: Contraction (The Window Closes)
A catalyst — rising interest rates, a geopolitical shock, a prominent IPO failure — triggers a rapid repricing of risk. Companies that were weeks away from IPO filing pull their offerings. Banks advise clients to wait. The IPO window slams shut.
Contraction can be sudden and severe. In 2022, the Federal Reserve's aggressive rate-hiking campaign effectively closed the IPO window for nearly 18 months. Companies that had planned 2022 offerings found themselves doing down rounds in private markets instead, sometimes at a fraction of their peak valuations.
What Drives IPO Cycles?
Interest Rates
Interest rates are the single most important macro factor affecting IPO markets. Low rates drive capital into riskier assets, inflate private valuations, and make the growth-stock valuations typical of IPO companies more defensible. When rates rise, the discount rate applied to future earnings increases, and the present value of growth stocks — which derive most of their value from distant future cash flows — falls disproportionately.
The 2020-2021 IPO boom coincided with near-zero interest rates. The 2022 crash coincided with the fastest rate-hiking cycle in four decades. This relationship is not coincidental.
Market Volatility
The VIX (volatility index) is a reliable leading indicator of IPO activity. When the VIX is below 20, IPO issuance is robust. When it spikes above 30, new issuance effectively stops. Underwriters won't price deals into volatile markets because the risk of a broken IPO (one that trades below its offering price) rises dramatically.
Private Market Valuations
IPO activity accelerates when private valuations reach a level where public markets offer an attractive exit. In 2019-2021, massive venture capital inflows inflated private valuations to the point where going public was the only path to liquidity for many investors. When private valuations declined in 2022-2023, the incentive to go public diminished — why sell at a potential down-round in public markets?
Regulatory Environment
SEC rule changes, disclosure requirements, and political dynamics all influence IPO timing. The JOBS Act of 2012 made it easier for smaller companies to go public, contributing to the growth in IPO volume through the following decade. Conversely, increased regulatory scrutiny of SPACs in 2022-2023 contributed to the collapse of that market segment.
Historical Patterns Worth Knowing
The January Effect
IPO activity is seasonally concentrated. January and February tend to see a surge in filings as companies that delayed through the holiday season rush to market. September through November is another active period, as companies try to complete offerings before year-end blackout periods.
Summer months (June-August) are typically quieter, as institutional investors take vacations and trading volumes decline. December is almost always dead — no one wants to price an IPO into year-end portfolio rebalancing.
The "Class of" Effect
IPOs from the same vintage year tend to share common characteristics. The Class of 2021 is predominantly high-growth, high-burn-rate technology companies that benefited from pandemic tailwinds. The Class of 2024-2025 is more likely to include profitable or near-profitable businesses, as investor discipline has increased post-correction.
For investors, understanding the vintage composition helps set expectations. A portfolio of 2021-vintage IPOs carries different risk characteristics than a portfolio of 2025-vintage IPOs.
Implications for Investors
Don't chase euphoria. The worst time to invest in IPOs is during peak cycle conditions, when valuations are stretched and quality is lowest. The best time is during the recovery phase, when pricing is conservative and only the strongest companies come to market.
Track the pipeline. The number of confidential S-1 filings (available through SEC tracking services) provides a 3-6 month leading indicator of issuance volume. A growing pipeline suggests the market is opening; a shrinking pipeline suggests contraction ahead.
Adjust allocation by cycle phase. In recovery and early expansion, allocate more aggressively to new IPOs. In late expansion and peak, reduce exposure and focus on secondary-market purchases of prior-cycle IPOs that have corrected to reasonable valuations.
Remember the base rate. Across all market cycles, IPOs as a class underperform the broader market over 3-5 year periods. Even sophisticated cycle timing doesn't change this fundamental dynamic — it just improves the odds. Selectivity within each cycle matters at least as much as timing the cycle itself.
The IPO market's cyclicality is both its greatest risk and its greatest opportunity. Investors who understand the pattern — and who have the discipline to act counterintuitively, buying when fear is high and sitting out when excitement peaks — position themselves for the best possible outcomes.