They’ve Been Waiting Years to Go Public. They’re Still Waiting.

Turo, a car rental start-up in San Francisco, has been trying to go public since 2021. But a volatile stock market in early 2022 delayed its listing. Since then, the company has waited for the right moment.

Last week, Turo pulled its listing entirely. “Now is not the right time,” Andre Haddad, the company’s chief executive, said in a statement.

For months, investors have eagerly anticipated a wave of initial public offerings, spurred by President Trump’s new administration. Since his election victory in November, which ended a tumultuous campaign season, Corporate America and Wall Street have heralded the start of a pro-business, anti-regulation period. The stock market soared ahead of an expected bonanza of deal making.

But the administration’s tariff announcements and rapid-fire regulatory changes have created uncertainty and volatility. Worsening inflation has set off market jitters. And the emergence of the Chinese artificial intelligence app DeepSeek last month caused investors to question their optimistic bets on U.S. tech, leading to a drastic sell-off among A.I.-related stocks.

All that has affected initial public offerings. “The calendar just went from fully booked to being wide open in a span of like three weeks,” said Phil Haslett, a founder of EquityZen, a site that helps private companies and their employees sell their stock.

So far this year, the pace of public offerings is ahead of last year’s, with companies raising $6.6 billion from listings, up 14 percent compared with this time last year, according to Renaissance Capital, which manages I.P.O.-focused exchange traded funds.