Sign up for our daily briefing

Make your busy days simpler with Axios AM/PM. Catch up on what's new and why it matters in just 5 minutes.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Catch up on coronavirus stories and special reports, curated by Mike Allen everyday

Catch up on coronavirus stories and special reports, curated by Mike Allen everyday

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Denver news in your inbox

Catch up on the most important stories affecting your hometown with Axios Denver

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Des Moines news in your inbox

Catch up on the most important stories affecting your hometown with Axios Des Moines

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Minneapolis-St. Paul news in your inbox

Catch up on the most important stories affecting your hometown with Axios Twin Cities

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Tampa Bay news in your inbox

Catch up on the most important stories affecting your hometown with Axios Tampa Bay

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Charlotte news in your inbox

Catch up on the most important stories affecting your hometown with Axios Charlotte

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Illustration: Rebecca Zisser / Axios

Bitcoin had a wild day, dropping nearly $5,000 from its opening price before clawing back $3,500 of that decline by late afternoon.

Quick hits:

  • "[B]itcoin has lost about $110 billion of its total market value in less than a week, twice the market cap of Tesla Inc." [WSJ]
  • "Michael Novogratz, the former macro manager who's turned into one of the biggest champions of bitcoin, shelved plans to start a cryptocurrency hedge fund and predicted that the digital money may extend its plunge to $8,000." [Bloomberg]
  • Past bubbles: "In 2013, Bitcoin's price rose first to a high above $200 before crashing. Later that same year, an investing mania in China drove the price to another high above $1,200, followed by yet another plunge." [NYT]

The big picture: Bitcoin nearly hit $20,000 earlier this week. It was valued around $1,000 at the beginning of 2017.

Go deeper: People bought a lot of "coin" and "crypto" web domains in 2017

Go deeper

Moderna says vaccine appears to protect against new COVID-19 variants

Photo: Justin Tallis/AFP via Getty Images

Moderna's COVID-19 vaccine is effective against new variants of the virus that first appeared in the U.K. and in South Africa, the company announced on Monday.

Yes, but: The vaccine was as effective against the strain from U.K., but saw a six-fold reduction in antibodies against the South Africa variant. Even still, the neutralizing antibodies generated by the vaccine "remain above levels that are expected to be protective," according to the company.

Dave Lawler, author of World
Updated 1 hour ago - World

Xi Jinping warns against "new cold war" in Davos speech

Chinese President Xi Jinping. Photo: Wang Zhao - Pool/Getty Images

Chinese President Xi Jinping warned that a "new cold war" could turn hot, and must be avoided, in a speech on Monday at World Economic Forum’s virtual “Davos Agenda” conference.

Why it matters: Xi didn't refer directly to U.S.-China tensions, but the subtext was clear. These were his first remarks to an international audience since the inauguration of President Biden, whose administration has already concurred with Donald Trump's determination that China is committing "genocide" against Uyghur Muslims, and issued a warning about China's aggression toward Taiwan.

Updated 2 hours ago - Politics & Policy

Dominion files $1.3 billion defamation lawsuit against Rudy Giuliani

Photo: Rey Del Rio/Getty Images

Dominion Voting Systems filed a defamation lawsuit against Rudy Giuliani on Monday seeking $1.3 billion in damages for his "demonstrably false” allegations about the company's voting machines.

Why it matters: Giuliani led former President Trump's efforts to overturn the results of the election and spread the baseless conspiracy theory that Dominion's voting machines flipped votes from Trump to Joe Biden.

You’ve caught up. Now what?

Sign up for Mike Allen’s daily Axios AM and PM newsletters to get smarter, faster on the news that matters.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!