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Illustration: Aïda Amer/Axios

Slack went public this week via the most elegant and efficient way possible — a direct listing. The opening auction of the stock cleared around noon on Thursday, at a price of $38.50. It then traded smoothly, under the ticker symbol WORK, for the rest of the week within a pretty narrow range between $36.50 and $42.

Why it matters: No one received preferential treatment. There was no possibility of the kind of scandalous behavior whereby banks like Goldman Sachs receive millions of dollars' worth of kickbacks from clients they place into hot IPOs.

  • Slack insiders sold $1.8 billion of stock in the opening auction, largely because the price was so high. In an auction system, sellers of stock can increase the amount they want to sell as the price goes up. Slack saw the perfect combination of a high stock price with a high volume of shares traded.
  • Traditional IPOs are "archaic and nepotistic," as venture capitalist Bill Gurley says. The direct model allocates stock to the highest bidders, which is much more logical.

What to watch: Slack and Spotify — which also opted for a direct listing — didn’t raise any new equity capital when they went public. But they can do so at any time, now that there's a deep and liquid market for their stock. And future IPOs might also use an auction system to allocate stock, a bit like Google did in 2004.

The bottom line: No matter how plugged in to the markets they are, IPO bankers will only ever be able to talk to a small subset of investors before they take a company public. The Slack auction — just like the Zoom IPO before it — shows just how unexpectedly large the bid can be when a hot, fast-growing company hits the market. It's silly for companies not to take full advantage of that upside.

Go deeper

Updated 25 mins ago - World

Fatal stabbing of British MP David Amess declared a terrorist incident

Police outside Belfairs Methodist Church in Leigh-on-Sea, England, on Oct. 15. Photo: John Keeble/Getty Images

Authorities have declared the death of David Amess a terrorist incident, hours after the Conservative Party lawmaker in the U.K. was fatally stabbed while meeting with local constituents in a church in eastern England on Friday.

The big picture: The Metropolitan Police has found "a potential motivation linked to Islamist extremism."

Biden: DOJ should prosecute those who defy Jan. 6 subpoenas

President Biden speaks with reporters at Bradley International Airport in Windsor Locks, Connecticut. Photo: Brendan Smialowski/AFP via Getty Images

President Biden said Friday that the Justice Department should prosecute those who defy subpoenas from the Jan. 6 select committee.

Why it matters: The president's remarks come one day after Donald Trump ally Steve Bannon failed to show up for a deposition before the committee.

Updated 2 hours ago - Politics & Policy

Bill Clinton hospitalized for non-COVID-related infection

Former President Bill Clinton. Photo: Win McNamee/Pool/AFP via Getty Images

Former President Bill Clinton was admitted to the University of California, Irvine Medical Center on Tuesday for a non-COVID-related infection, his spokesperson Angel Ureña said Thursday.

The latest: In an update on Friday, Ureña said Clinton's health indicators are "trending in the right direction, including his white blood count which has decreased significantly."