Sign up for our daily briefing

Make your busy days simpler with the Axios AM and PM newsletters. 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 the day's biggest business stories

Subscribe to the Axios Closer newsletter for insights into the day’s business news and trends and why they matter.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Sign up for Axios Pro Rata

Dive into the world of dealmakers across VC, PE and M&A with Axios Pro Rata. Delivered daily to your inbox by Dan Primack and Kia Kokalitcheva.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Sports news worthy of your time

Binge on the stats and stories that drive the sports world with the Axios Sports newsletter. Sign up for free.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Tech news worthy of your time

Get our smart take on technology from the Valley and D.C. with Axios Login. Sign up for free.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Get the inside stories

Get an insider's guide to the new White House with Axios Sneak Peek. Sign up for free.

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!

Want a daily digest of the top Denver news?

Get a daily digest of 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!

Want a daily digest of the top Des Moines news?

Get a daily digest of the most important stories affecting your hometown with the Axios Des Moines newsletter.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Twin Cities news?

Get a daily digest of 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!

Want a daily digest of the top Tampa Bay news?

Get a daily digest of the most important stories affecting your hometown with the Axios Tampa Bay newsletter.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Charlotte news?

Get a daily digest of 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!

Want a daily digest of the top Nashville news?

Get a daily digest of the most important stories affecting your hometown with the Axios Nashville newsletter.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Columbus news?

Get a daily digest of the most important stories affecting your hometown with the Axios Columbus newsletter.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Dallas news?

Get a daily digest of the most important stories affecting your hometown with the Axios Dallas newsletter.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Austin news?

Get a daily digest of the most important stories affecting your hometown with the Axios Austin newsletter.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Atlanta news?

Get a daily digest of the most important stories affecting your hometown with the Axios Atlanta newsletter.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Philadelphia news?

Get a daily digest of the most important stories affecting your hometown with the Axios Philadelphia newsletter.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top Chicago news?

Get a daily digest of the most important stories affecting your hometown with the Axios Chicago newsletter.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Sign up for Axios NW Arkansas

Stay up-to-date on the most important and interesting stories affecting NW Arkansas, authored by local reporters

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Want a daily digest of the top DC news?

Get a daily digest of the most important stories affecting your hometown with the Axios DC newsletter.

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!
Expand chart
Reproduced from The Leuthold Group; Chart: Axios Visuals

The gap between the weighting of the five largest companies in the S&P 500 and the 300 smallest rose to the highest ever at the end of August, according to data from the Leuthold Group.

Why it matters: The concentration of wealth in a few massive U.S. tech companies has reached a scale significantly greater than it was before the dot-com bubble burst.

  • In August, five companies — Apple, Microsoft, Amazon, Facebook and Alphabet — held a share of the S&P 500 that was 9% greater by market cap than the index's 300 smallest companies. This was a record amount.

What they're saying: "These trillion-dollar tech juggernauts have boosted their market-cap weight in 11 of the past 12 months — zooming from 15.8% of the S&P 500 last September, to 23.9% in August," Phil Segner, a Leuthold Group research analyst, said in a recent note to clients.

  • "What’s even more remarkable is that this trend has persisted during a 33% downdraft and a 60% updraft. September’s relative wobble in the 'Top 5' has trimmed its weight back to 21.7%, which is the largest month-to-month decline since 2000."
  • "Even with the trim, the current weight of the S&P 500’s Top 5 is still well above the Tech Bubble’s high of 18.1%."

Go deeper

Tesla to join S&P 500 as its biggest new member ever

People look at electric vehicles at a Tesla store in Shanghai, China. Photo: Yan Daming/VCG via Getty Images

Tesla will join the S&P 500, the index's committee said on Monday.

Why it matters: After years of ineligibility, one of the most valuable U.S. companies by market cap (and the most valuable automaker in the world) is joining the main benchmark of the stock market as its biggest new member ever.

Updated 1 hour ago - World

State Department orders evacuation of U.S. diplomats' families from Ukraine

From left, Under Secretary for Political Affairs Victoria Nuland, Secretary of State Antony Blinken and U.S. Chargés d'Affaires in Ukraine Kristina Kvien during a meeting with Prime Minister of Ukraine Denys Shmyhal in Kyiv. Photo: Yevhen Liubimov/ Ukrinform/Barcroft Media via Getty Images

The State Department will begin evacuating families and non-essential staff from the U.S. Embassy in Kyiv this week, according to a travel advisory published Sunday evening.

Why it matters: The move underscores U.S. fears that a Russian invasion could destabilize Ukraine and threaten embassy's ability to assist Americans.

Perfect storm brewing for extreme politicians

Data: Axios research; Table: Jacque Schrag/Axios

Redistricting and a flood of departing incumbents are paving the way for more extreme candidates in this year's midterm elections.

Driving the news: At least 19 House districts in 12 states are primed to attract such candidates — hard partisans running in strongly partisan districts — according to an Axios analysis of districts as measured by the Cook Political Report's Partisan Voter Index (PVI).