The Liquidity Wave: How the OpenAI and Anthropic IPOs Will Reshape San Francisco Home Prices

Estimated reading time: 9 minutes

San Francisco housing has always run on liquidity events. Its grand mansions rose on mining and railroad fortunes. Today a new fortune approaches the city. Two of the world’s most valuable startups sit inside its limits. OpenAI and Anthropic both filed confidentially for public offerings this summer. Each chases a valuation near one trillion dollars. Their employees hold vast wealth on paper. An initial public offering turns that paper into cash. And cash, in this city, chases a tiny pool of homes. The market did not wait for the opening bell. It moved months ago, on anticipation alone. We examined the data, the history, and the mechanics. The picture that emerges is stark.

The numbers already defy belief

Consider one figure. In the first half of 2026, 144 San Francisco homes sold for at least one million dollars over asking. Compass compiled the count. Only eight such sales happened in the same stretch of 2025. In 2024 the number was six. June 2026 alone produced 44 of them. These homes listed for $3.8 million on average. They sold for $5.3 million. San Francisco now posts the fastest home-price growth in the country. Redfin data show the median sale price rose 16.1 percent over the year to May. The city’s median price per square foot crossed $1,194. That figure climbed more than $200 in nine months.

Wealth arrives before the bell rings

Here lies the counterintuitive part. Two companies going public should, in theory, matter little to housing today. Yet their wealth already moves the market. The reason is simple. Local employees and investors hold enormous equity on paper. They do not need the listing to spend it. Many have already sold. The Wall Street Journal reported that more than 600 current and former OpenAI employees sold $6.6 billion in shares last October. Roughly 75 of them hit a $30 million cap. Secondary markets and company tender offers unlock this cash early. One listing on Noe Street even began accepting pre-IPO OpenAI or Anthropic stock as payment. In this market, AI equity has become a currency of its own.

How paper wealth becomes concrete

The transmission runs through a clear channel. First, a liquidity event converts illiquid equity into spendable cash. Second, that cash concentrates among a small group of high earners. Third, those buyers compete for a fixed, tiny pool of homes. San Francisco builds very little new housing. Its geography and its rules constrain supply tightly. So the new demand meets a wall. Prices climb, and bidding wars follow. Ted Egan, the city’s chief economist, has watched booms for two decades. He told Marketplace he has seen nothing on this scale. The scale matters because the money dwarfs earlier tech waves. Investors have poured orders of magnitude more into AI. And the winnings accrue to a concentrated few.

History rhymes: the Facebook playbook

We have seen a version of this before. Facebook went public in May 2012. Zillow later tracked what happened to homes near its workers. Values where Facebook employees lived grew 20.9 percent in the following year. The rest of the Bay Area grew 16.8 percent. That gap meant roughly $29,800 of extra appreciation in year one. The pattern then repeated across cycles. Twitter’s 2013 listing unleashed another round of wealth. Each event punctuated an already-tight market. Jeff Tucker, then a Zillow economist, described the timing well. The effect works, he said, like a switch getting flipped all at once. Renters become buyers almost overnight. History suggests the AI wave will follow the same script, only far larger.

The slow burn still lies ahead

This is why we read the story as a slow burn. The anticipation phase has already lifted prices. Yet the largest surge may still be coming. Lock-up periods hold most employees back at first. These clauses bar insiders from selling for a set window. Most of them last around six months. Once they expire, a wave of selling can begin. Analysts who studied past listings saw the pattern clearly. Buyers tend to flood the market six to nine months after a debut. A large share of them do not yet own homes. So the real demand shock lands later, not on day one. If both firms list this autumn, that window opens in 2027. The full effect, in short, remains ahead of us.

Geography concentrates the money

The wealth does not spread evenly. It pools in a handful of neighborhoods. Compass found Noe Valley led the city in these million-over sales. Its proximity to the Peninsula draws Silicon Valley buyers. Pacific Heights and Presidio Heights saw the most dramatic overbids. One Cow Hollow home listed just under $8 million. It sold for $15 million in May. A Presidio Heights property listed near $4 million. It fetched $8.2 million. The Wall Street Journal noted a telling pattern. Nearby counties have not seen the same intensity. This boom, unusually, centers on the city itself. AI firms now prize density and in-office work. Their workers want to live near the new power centers. The gravity has shifted back into San Francisco proper.

The skeptic’s argument deserves a hearing

Not everyone credits the IPO story. Mike Simonsen, Compass’s chief economist, urges caution. He built the over-asking report himself. He told The Real Deal he had never seen anything like it. Yet he doubts the listings deserve the credit. Simonsen argues that long-public companies drive most of the wealth. He points to Nvidia, which listed 27 years ago. Its recent surge added trillions in value to local shareholders. When the Nasdaq and S&P 500 hit records, workers at Meta, Google, and Apple gain liquidity too. In his reading, a broad market boom matters more than any single debut. He also warns that many risks could derail that boom. We think both forces operate together, and reinforce each other.

Redfin sees a system, not a moment

Daryl Fairweather, Redfin’s chief economist, offers a related view. She doubts a single listing would move the market overnight. But she sees a durable imbalance beneath the frenzy. Strong high-income demand meets stubbornly constrained supply. That combination, she argues, sustains the competition. She put the point plainly to Real Estate News. The bidding wars, she said, ease only when inventory improves or demand cools. She expects neither soon. The data back her up. San Francisco is the only major market west of the Mississippi with more buyers than sellers. Buyers outnumbered sellers by 14 percent in May. Oakland ran a 30 percent surplus of sellers. Los Angeles ran 56 percent. San Francisco stands almost alone in its intensity.

The human toll compounds quietly

The boom carries a sharp social edge. High salaries no longer guarantee a foothold. The New York Times profiled workers priced out despite six-figure pay. One earner sits in the top fifth of American households. He still felt he could not compete. A phrase now circulates in tech circles: “permanent underclass.” It names a specific fear. Missing this wave of AI wealth may mean missing the last one that counts. Deedy Das, a partner at Menlo Ventures, described the psychology. Overnight, he said, friends became worth billions of dollars. Even they struggle to process it. Others who did everything right now question their path. The city’s inequality deepens as the winnings pool at the very top.

The wave could still break early

Risks cut hard against the bullish case. Public markets have turned choppy this summer. SpaceX listed on 12 June and raised more than $85 billion. Its stock then tumbled sharply within weeks. That reception rattled the other candidates. Reuters reported that OpenAI now weighs delaying its listing to 2027. A weak debut would blunt the wealth effect. A market correction could shrink the paper fortunes fast. One agent captured the fatalism perfectly. Jeremy Rushton of Coldwell Banker has sold homes for 14 years. He warned that logic rarely prevails in San Francisco real estate. Confidence and fear, he said, drive the market by turns. For now, confidence clearly dominates. That mood, however, can shift without much warning.

What it means for buyers and the city

So where does this leave everyone? Sellers hold a rare advantage right now. Buyers face a brutal calculus. Many now race to buy before listings price in more wealth. Agents report open-house crowds voicing that exact fear. One realtor described sellers who would simply take stock as payment. This front-running behavior can lift prices on its own. Expectations, in a thin market, become self-fulfilling. For the city, the stakes run deeper than any single sale. A concentrated windfall reshapes who can afford to live where. It hardens the divide between the AI economy and everyone else. San Francisco has survived many gold rushes. This one may prove the most extreme yet.

Where the evidence lands

We reach a measured conclusion. The IPOs will not flip a switch on debut day. The wealth effect works slowly, and in part it has already begun. Anticipation lifted prices right through 2026. Tender offers turned paper into spendable cash. The public listings, if they hold, will pour more fuel on the fire. The largest surge likely waits for the lock-ups to expire in 2027. New supply will not rescue affordability in that window. Demand shows no real sign of cooling. Skeptics rightly note that broad markets matter too. But in San Francisco, the two forces amplify each other. The liquidity wave is building steadily. The only open question is how high it finally crests.