Y Combinator president Sam Altman. Photo: Steve Jennings/Getty Images

Y Combinator, the well-known Silicon Valley startup accelerator, will add a program for "growth stage" companies next year, a departure from its early-stage DNA.

Why it matters: Y Combinator is considered by many to have a magic touch when it comes to supporting startups — having backed such companies as Airbnb and Stripe — and now wants to prove its metal with more mature companies. What's worth noting, however, is that the vast majority of YC companies never reach the growth-stage.

  • Only 100 out of more than 1,200 active YC alumni have more than 50 employees, and only 60 have more than 100 employee. The new program will accept both companies that did and didn't go through YC's seed-stage accelerator.
  • YC's fund focused on growth stage startups also began to invest in select non-alumni earlier this year.

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SurveyMonkey poll: Trump improves, but not enough

Trump and Biden during the final debate. Photo: Xinhua/Liu Jie via Getty Images

President Trump's final debate performance exceeded Americans' expectations, but it wasn't enough to shift the dynamics that left him trailing Joe Biden across most measures, according to a new Axios-SurveyMonkey poll.

What they're saying: "Liar" was the word used most by debate watchers to describe Trump's performance, followed by "lies," "strong," "presidential" and "childish." "Presidential" was the word used most to describe Biden's performance, followed by "liar," "weak," "expected" and "honest."

Hunter Biden saga dominates online debate

Data: NewsWhip; Table: Axios Visuals

The mainstream media turned away. But online, President Trump's charges about Hunter Biden were by far the dominant storyline about the final presidential debate, according to exclusive NewsWhip data provided to Axios.

  • Coverage of business dealings by Joe Biden's son — and pre-debate allegations by one of his former business associates, Tony Bobulinski — garnered more than twice as much online activity (likes, comments, shares) as the runner-up.