The Big 3 IPOs Will Dwarf Everything Else Since 2000. Combined.

SpaceX filed confidentially with the SEC on April 1. OpenAI just closed the largest private funding round in Silicon Valley history at $122 billion. Anthropic is targeting an October listing.

PitchBook put it in one line: these three listings would “conceivably create more value than all VC-backed IPOs since 2000 have collectively.”

One more time: three companies, in one year, generating more exit value than every single VC-backed IPO in America over the past 25 years. Added up. All of them. Meta, Uber, Snowflake, DoorDash, Rivian, Snap, Lyft, Robinhood, and hundreds more.

The sum of all of it is smaller than the Big 3.

We’ve Never Seen Anything Like The Big 3

SpaceX’s projected exit value is 23x Uber’s IPO value. And Uber was the biggest VC-backed tech IPO of its era.

All public listings of US VC-backed companies since 2015 have created roughly $1.44 trillion in total exit value, including SPACs. IPOs alone generated $1.22 trillion. SpaceX, at $1.5 trillion, would alone produce more exit value than every VC-backed IPO over the past decade. One company.

SpaceX has filed its confidential S-1 (April 1), and Bloomberg reported on April 2 that it’s now targeting a valuation above $2 trillion. Elon denied the number, but even anything close would be unprecedented. If SpaceX prices there, the Big 3’s combined exit value approaches $3.5 trillion. OpenAI closed its $122 billion round on March 31 at an $852 billion post-money valuation, with SoftBank, Amazon ($50B), Nvidia ($30B), and Microsoft all participating. It’s targeting a $1 trillion IPO for Q4 2026. Revenue hit $25 billion annualized by February 2026, up from $6 billion just 14 months earlier. Anthropic is reportedly targeting a Q4 2026 listing at a $400-500 billion valuation, aiming to raise $60 billion+. Revenue doubled from $9 billion to $19 billion annualized in under four months. 80% of that is enterprise. Eight of the Fortune 10 are Claude customers.

The IPO proceeds dwarf the entire market, too

PitchBook notes that SpaceX alone is aiming to raise $50-75 billion in IPO proceeds. OpenAI and Anthropic together could raise another $50 billion. Combined: roughly $100-125 billion in proceeds from three listings.

For context: US VC-backed IPOs raised a record $62.1 billion in total proceeds in 2021. That was the absolute peak. 198 companies going public in a ZIRP-fueled, SPAC-crazed market where the S&P 500 returned 28.4%.

SpaceX alone is targeting more proceeds than the entire 2021 class raised. One company. One IPO.

As PitchBook puts it: “With such large sums being raised by just a few listings, the potential lack of capital for less unique offerings should concern VCs.”

The return multiples are staggering

Look at the “total invested” column in PitchBook’s data. SpaceX absorbed $50 billion in venture capital and is targeting a $1.5 trillion exit. That’s a 30x return on total capital invested. For investors who participated in the 2023 round at $137 billion, PitchBook estimates they’re looking at over 10x on that single position. Nearly 50 investors participated in that one round.

But the capital efficiency comparison cuts the other direction for the AI companies. PitchBook’s Morningstar analysis found that Anthropic generates $0.23 in ARR per dollar raised. Databricks generates $0.16 on positive free cash flow. OpenAI generates $0.11, down from $0.31 just 18 months ago. That’s the steepest single-event deterioration of capital efficiency PitchBook has tracked for any major AI company.

OpenAI had raised $64 billion (before the latest $122 billion round) to generate about $20 billion in ARR and $13.3 billion in 2025 revenue. Its losses exceeded $6 billion in 2025, and total expected burn before reaching profitability could surpass $100 billion.

None of these companies are profitable.

The VC concentration problem

This isn’t just about three companies going public. It’s about what happens to everyone else.

The venture market has been stuck in what PitchBook calls “an extended liquidity drought.” Not just because fewer companies have gone public in the past four years combined than in 2021 alone. But because M&A has been slow and value keeps accumulating in late-stage private companies that can’t or won’t exit.

There are 1,300+ VC-backed companies valued over $500 million. Only 40 exited last year. At that pace, it would take 30 years to clear the backlog. PitchBook estimates at least 25% of unicorns currently have valuations below $1 billion based on their own models. The US VC market has nearly $7 trillion in aggregate value, more than $4 trillion of it sitting in unicorns. Unlocking that value is the most pressing need in VC.

In Q1 2026, OpenAI and Anthropic alone accounted for 57% of all capital raised by US startups. Two companies. More than half the entire market.

The investors who benefit most are already the biggest. Nvidia, Microsoft, Altimeter, Coatue, and Fidelity are investors in both Anthropic and OpenAI. Andreessen Horowitz is in SpaceX, xAI, and OpenAI. T. Rowe Price is in all three. When those returns hit, they recycle into these firms’ next raises, compounding the concentration.

Meanwhile, 54% of VC-backed unicorns are now AI-native or AI-adjacent. The entire herd is betting on the same thesis these three companies anchor.

Will This Help … Everyone Else? Or Not?

PitchBook frames this as a fork:

Catalyst: Strong Big 3 listings pull more companies into IPOs, validate AI investment, stabilize private market pricing, and unlock billions in distributions to LPs. A company going public with “only” $1 billion in annual losses suddenly looks trivial next to OpenAI. Databricks, Stripe, and others file their S-1s. The IPO window opens broadly.

Distraction: The Big 3 absorb underwriting capacity, investor attention, and public market capital. Smaller IPOs get systematically underpriced. Post-listing volatility (Alibaba dropped 40% from its debut price in its first year; Meta and Uber experienced similar early declines; Figma is currently trading below its IPO price) spooks the rest of the pipeline. The IPO window opens only for mega-companies, and everyone else waits another year.

The track record of large unicorn IPOs isn’t reassuring. In 2025, 17 unicorns went public. 14 of them listed at valuations below their private market peak. Many have traded lower since listing. As PitchBook notes: “It is not uncommon for high-growth tech companies to trade lower through the first six months.”

If you’re a B2B founder hoping to IPO in 2026, here’s what you’re up against: three companies that will absorb a huge chunk of underwriting capacity, institutional allocation budgets, and media oxygen. PitchBook believes there won’t be much IPO activity until the second half of 2026, possibly not until after SpaceX sets the tone.

The pipeline of companies that have actually filed S-1s is thin. Discord, Kraken, Cerebras, Strava, and Motive are in registration. That’s not a lot.

For everyone else, the math is simple: your IPO timing is now downstream of SpaceX’s reception. If SpaceX prices at $2 trillion and trades well, the window opens. If it trades like Alibaba or Meta in their early months, the window narrows. If something goes wrong, plan for 2027.

Unprecented IPOs Are Coming. Soon.

We’ve never seen anything like this in 25 years of venture capital. Three companies, all planning to go public in the same year, with a combined projected exit value of $3 trillion. That’s more than every VC-backed IPO since 2000. More than every VC-backed public listing since 2015, including SPACs.

$110 billion in total capital invested across the three of them. $3 trillion in projected exit value. A 27x aggregate return on invested capital. If it works.