The 2018 IPO class looks especially vulnerable to the impact of an extended government shutdown, thanks to an arcane rule requiring recent listings to wait for regulatory approval before raising cash in a follow-on offering.

President Donald Trump told reporters Jan. 9 that Congressional Republicans are unified behind continuing the shutdown, which he previously warned could last for months -- or even years. While the shutdown prevents companies from moving forward with initial public offerings, those who have already listed face their own set of challenges.

“The dynamic for follow-on offerings might be even more problematic than for delayed IPOs,” said Dave Sabow, head of Silicon Valley Bank’s life science and healthcare practice.

Well-performing IPOs typically bring another equity offering within a year of listing to provide liquidity for investors and raise more cash at a stronger valuation. But because of the companies’ short reporting history, they must now wait for the SEC to reopen in order to review their filings to sell more stock. Soaring 2018 IPOs such as Dropbox Inc., Elastic NV, Pluralsight Inc., Smartsheet Inc. and HUYA Inc. would have to delay any plans for equity financing until the government reopens or find an alternative source of cash.

In a phone interview from the sidelines of the JPMorgan Healthcare Conference, Sabow said those alternatives could include private debt financing, partnerships, out-licensing agreements or geographic licensing arrangements.

“There are things beyond equity that can finance innovation,” he said. “The importance of those alternatives increases as this shutdown goes on.” But those options might not work for every firm in every sector.

“There are not a lot of options,” said Carter Mack, president and co-founder of JMP Group LLC. “If you were planning on raising equity, you want to raise equity.“

Since the government shutdown began in December, just three follow-on offerings have raised a total of $811 million in the U.S. through the afternoon of Jan. 9, according to data compiled by Bloomberg. Over the same period last year, 13 deals raised nearly $6 billion.

Other companies with market caps above $700 million, or those that issued $1 billion in debt over the past 3 years, can raise equity during the shutdown without SEC review because they qualify as a so-called “Well Known Seasoned Issuer.” The designation was created by the SEC in 2005 to make it easier for larger, more familiar firms to bring offerings. But these companies also have fewer reasons to raise cash in a shutdown, as acquisitions and drug trials remain in limbo.

Sabow said most companies remain optimistic that the shutdown will not last much longer.

“I think people are heavily discounting any scenario where this becomes an intermediate- to long-term shutdown. If that happens, I wouldn’t be surprised if we see a different sentiment out there.“

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