Jared Heyman – Medium

Jared Heyman

On the last decade of Y Combinator

Since taking my last startup through Y Combinator as a founder over a decade ago, I’ve had the privilege of attending every YC Demo Day…

Feb 18

On the last decade of Y Combinator

Feb 18

On seed-stage startup traction (and why to ignore it)

I’ve had the privilege of investing in 300+ Y Combinator startups over my career and looked at many thousands more. Over the years, I’ve…

Feb 7

On seed-stage startup traction (and why to ignore it)

Feb 7

On YC unicorn founders

I’ve published dozens of data-driven blog posts over the years about Y Combinator startups and founders from an investor perspective, but…

Aug 22, 2024

On YC unicorn founders

Aug 22, 2024

On Rebel Theorem and YC batch quality

A couple of years ago, I published a post On YC batch quality at scale that showed the upward trend in Y Combinator startup outcomes…

Aug 8, 2024

On Rebel Theorem and YC batch quality

Aug 8, 2024

On Rebel Theorem 3.0

Jul 3, 2024

On Rebel Theorem 3.0

Jul 3, 2024

On the power law of Y Combinator startups

Apr 30, 2024

On the power law of Y Combinator startups

Apr 30, 2024

On the Y Combinator Summer 2023 batch

Oct 5, 2023

On the Y Combinator Summer 2023 batch

Oct 5, 2023

On the 176% annual return of a YC startup index

…and why one will never exist

Jul 1, 2023

On the 176% annual return of a YC startup index

Jul 1, 2023

On the Y Combinator Winter 2023 batch (written with GPT-4)

Rebel Fund is one of the largest and most prolific investors in Y Combinator startups and builds the most comprehensive database that…

May 17, 2023

On the Y Combinator Winter 2023 batch (written with GPT-4)

May 17, 2023

On Y Combinator startups and the AI revolution

ChatGPT launched on November 30, 2022, and gained over one million users within five days. Now a couple of months later, it’s fully…

Feb 4, 2023

On Y Combinator startups and the AI revolution

Feb 4, 2023

On the shifting landscape of YC batches (2023 update)

A few years ago, I wrote a post On the shifting landscape of YC batches to analyze statistical trends in Y Combinator startups by industry…

Feb 1, 2023

On the shifting landscape of YC batches (2023 update)

Feb 1, 2023

On the life and death of Y Combinator startups

I’ve written much over the years about the incredible success of Y Combinator startups, but as any experienced startup founder or investor…

Nov 30, 2022

On the life and death of Y Combinator startups

Nov 30, 2022

On the Y Combinator “premium” (2022 update)

One of the most common complaints I hear amongst Y Combinator startup investors is their sky-high valuations. It’s not uncommon for YC…

Nov 29, 2022

On the Y Combinator “premium” (2022 update)

Nov 29, 2022

On YC startup exits

As a venture capital fund manager, one of the questions I’m asked most often by LPs is “How long will it take to get my money back?”

Nov 9, 2022

On YC startup exits

Nov 9, 2022

On 101 Y Combinator unicorns

In August 2022, Y Combinator released its latest Top Companies list, now including 314 private and 16 public YC startups each valued at…

Oct 20, 2022

On 101 Y Combinator unicorns

Oct 20, 2022

On Rebel Theorem 2.0

A couple of years ago I published On Rebel Theorem to reveal the proprietary machine-learning algorithm we use at Rebel Fund to maximize…

Sep 15, 2022

On Rebel Theorem 2.0

Sep 15, 2022

On the Y Combinator Summer 2022 batch

Last year I published an in-depth analysis of the Y Combinator Summer 2021 batch that was later shared by YC itself! I’ll repeat the…

Sep 9, 2022

On the Y Combinator Summer 2022 batch

Sep 9, 2022

On the rapid internationalization of Y Combinator startups

In my last post On Y Combinator batch quality at scale we looked at the dramatic increase in the number of YC startups over the years and…

Jun 28, 2022

On the rapid internationalization of Y Combinator startups

Jun 28, 2022

On Y Combinator batch quality at scale

Since Rebel Fund invests exclusively in Y Combinator startups (with 80 YC startup investments to date) I’m often asked by other investors…

Jun 24, 2022

On Y Combinator batch quality at scale

Jun 24, 2022

On portfolio strategy and unicorn catching

In my previous post On $600B of Y Combinator Startup Success I discussed our analysis of the 271 companies on Y Combinator’s latest Top…

Jun 11, 2022

On portfolio strategy and unicorn catching

Jun 11, 2022

Jared Heyman

Jared Heyman

Tech guy and investor. Founder at Rebel Fund and previously Pioneer Fund, CrowdMed (YC W13), Infosurv & Intengo (acq. LON: NFC). Ex-Bain consultant. Data nerd.

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