By 2023 the deferrals had run out. The bridges converted, the runway extensions expired, and US venture capital finally priced the reality it had spent eighteen months postponing — while a single new category absorbed a disproportionate share of everything still being deployed.
If 2022 was the year US venture capital deferred its adjustment, 2023 was the year the deferrals came due.
The mechanism was simply the passage of time. A company that raised in 2021 with two years of runway reached the end of it in 2023. A bridge note taken in mid-2022 with an eighteen-month horizon converted in late 2023. An extension round intended to buy time until conditions improved was exhausted before conditions improved. Each of these had converted a valuation problem into a time problem, and the time ran out.
The resulting year had a distinctive character. Headline funding totals fell, which was widely reported. Less widely reported, and more important, was that a large share of the year's actual activity did not appear in funding data at all: shutdowns, acquihires, quiet asset sales, and restructurings that never produced a press release.
Meanwhile, a constraint that had been secondary became primary. Venture funds raise from limited partners, and limited partners fund new commitments substantially from distributions returned by prior ones. With exits closed for a second consecutive year, distributions had collapsed. Institutions could not recycle capital, so new fund commitments slowed — and that flowed through to how much venture funds could deploy, regardless of how attractive the opportunities looked.
The one exception was artificial intelligence, which absorbed a share of deployment far out of proportion to its share of companies. That concentration is the origin of the bifurcated market described in the 2025 report.
The 2022 report describes the bridge round as converting a valuation problem into a time problem. 2023 is where that trade was settled, and it is worth tracing precisely how.
A convertible instrument defers pricing but does not eliminate it. The note converts, typically at the next priced round or at a maturity date, and at that moment a price is set. The company's position in 2023 was determined by what had happened in the interval:
Conditions had not improved. So a large share of 2022's deferrals resolved on worse terms than an immediate adjustment would have produced.
Several second-order effects compounded:
A deferral is a bet that time will help. In 2023 that bet was settled, and it mostly lost. The companies that took the mark in 2022 generally ended up in better shape than those that waited.
That is a durable lesson and it runs against instinct. The cost of accepting a valuation correction rises the longer it is postponed, because postponement consumes the very resources — runway, leverage, optionality — that would have made accepting it survivable.
Funding totals for 2023 tell only part of the story, and the missing part is arguably larger.
Shutdowns. A substantial number of companies that had raised in 2020 and 2021 ceased operations in 2023. Shutdowns are poorly captured in venture data: there is no filing requirement, no announcement obligation, and companies often wind down quietly over months. The data records the absence of a new round, not the closure.
Acquihires and asset sales. Many companies were acquired for amounts below the capital invested, in transactions that were effectively an orderly wind-down with the team preserved. These are recorded as exits, which flatters exit statistics, but they returned little or nothing to investors.
Restructurings. Recapitalisations that wiped out prior preferred stacks, converted preferred to common, or reset option pools happened without generating a reported valuation.
Team reductions. Reductions in headcount extended runway without a financing event, changing the trajectory of thousands of companies invisibly.
The consequence is a systematic bias in how the year is remembered. A dataset built on announced financings measures the companies that raised money. It does not measure the ones that did not, and in 2023 the second group was where most of the change occurred.
For allocators, the practical implication is that portfolio-level analysis in a downturn should start from the number of companies still operating rather than from valuation marks. A fund whose marks held up while a third of its portfolio quietly ceased operating has not held its value.
The binding constraint on US venture capital in 2023 was not valuation and not opportunity. It was liquidity at the limited partner level, and the chain is worth setting out because it is the least visible link in the system.
The mechanism runs in a loop:
Break step 1 and the whole loop constricts. With exits largely closed since 2022, distributions had fallen far below the level needed to sustain commitment pacing. LPs faced a straightforward arithmetic problem: to make a new commitment, they had to either receive distributions, sell something, or find new money.
Compounding it was the denominator effect described in the 2022 slot-A report: with public portfolios having fallen while private marks lagged, private allocations were mechanically above target. Institutions were over-allocated to private markets on paper, at exactly the moment they were being asked to commit more.
The consequences were specific:
This is why 2023 deployment fell even where investors saw attractive opportunities. The constraint was upstream of the investment decision, which is an unfamiliar situation for an industry accustomed to thinking of capital as the abundant input.
Against a contracting backdrop, one category absorbed a share of deployment far out of proportion to its share of companies.
The immediate cause was the public emergence of large language models, which converted artificial intelligence from a long-standing research area into an investable category with visible product-market fit. But the degree of concentration had structural causes beyond the technology:
The consequence for everything else was severe. Capital is finite, and concentration into one category means withdrawal from others. Companies in unrelated sectors faced a market that had contracted more than headline figures suggested, because the headline included a category they were not part of.
This is the origin of the bifurcation described in the 2025 report. It began in 2023, deepened in 2024, and by 2025 had become sharp enough that market-level averages stopped describing any actual participant.
The most durable structural change of 2023 was the normalisation of secondary transactions and continuation vehicles.
Secondaries — the sale of existing fund interests or direct positions to a new buyer — had historically carried a stigma. A seller was assumed to be distressed. Continuation vehicles — where a manager moves an asset from an ending fund into a new one, allowing existing LPs to exit and new ones to enter — were viewed similarly.
2023 changed both, for a simple reason: with the primary exit route closed, these were the only routes available. Institutions needing liquidity sold fund interests. Managers holding good assets in ageing funds used continuation vehicles rather than forcing a sale into a bad market.
Volume grew enough that the stigma disappeared, and something more interesting followed. Having become normal, these instruments did not recede when conditions partially improved in 2024 and 2025. They became standard tools for managing duration and liquidity — used opportunistically rather than defensively.
That is a genuine structural change in how private capital works, and it originated in 2023 as a response to a problem rather than as a design decision.
2023's measurement gap — shutdowns, quiet sales and restructurings absent from funding data — has a direct consequence for how a private portfolio should be assessed, and it argues for a different starting point than the one most reviews use.
The conventional starting point is valuation. Total portfolio value, change since the last period, unrealised gain. This is what reporting systems produce and it is what LP communications lead with.
In a downturn it is the least informative number available, for reasons this report and the 2022 report establish: marks are set at events rather than continuously, positions that have not transacted have not been remeasured, and structure means a flat headline valuation can conceal a substantial economic change.
A more informative starting point is company status. Specifically:
None of these requires a valuation judgement, which is their advantage. They are facts about the portfolio's state, and they were largely available to any investor who asked.
In a downturn, count the companies before valuing them. A portfolio's marks describe what was last agreed. Its operating status describes what is still there.
Measure distributions, not exit announcements. Distributions as a percentage of net asset value measures capital actually returned and is the variable that determines commitment capacity. Announced transaction values do not. Bain publishes the figure free.
Recognise that the constraint moved upstream. In 2023, deployment fell in many cases despite investors seeing attractive opportunities, because the binding constraint was LP liquidity rather than opportunity quality. A constraint upstream of the investment decision is unfamiliar to an industry accustomed to treating capital as the abundant input, and it is not relieved by better selection.
Read category concentration as crowding out. Capital is finite. A category absorbing a disproportionate share means withdrawal from others, so companies in unrelated sectors faced a market that had contracted more than headline figures suggested. The headline included a category they were not part of.
Accept the correction early rather than late. The companies that took the mark in 2022 generally ended up in better shape than those that deferred, because deferral consumed the runway, leverage and optionality that would have made the adjustment survivable. The cost of accepting a correction rises the longer it is postponed, which runs against instinct.
Treat secondaries and continuation vehicles as standard tools. Having become necessary in 2023, they did not recede when conditions improved. They address a duration mismatch that exists in every market condition, which is why the change proved structural rather than a crisis adaptation.
Track first-time fund formation as a leading indicator of industry composition. NVCA/PitchBook reports it separately in its free quarterly summary. A manager who cannot raise a first fund now does not raise a third a decade hence, and the cost appears as a gap in the population of established managers long after the constraint has passed.
A structural retrospective on US venture capital in 2023, focused on the expiry of 2022's deferrals and the emergence of the LP liquidity chain as the binding constraint.
Where figures appear they carry a numbered source. Mechanisms — deferral cost accumulation, the measurement gap in downturn data, the distribution-to-commitment loop, category concentration crowding out — are analysis with reasoning shown.
This report follows from the 2022 slot-B report and connects forward to the 2025 slot-A analysis of bifurcation.
US Venture Capital Report 2022 — The Repricing precedes this report in the North America sequence.
US Venture Capital Report 2024 — Two Markets follows this report in the North America sequence.
Global Investment Outlook 2023 — Narrow Leadership and the AI Pivot covers the same year at global multi-asset level.
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