Reletter
Artwork for Day by Jay

Day by Jay

Jackie DiMonte

\ud83d\udcc8\ud83d\udcc9\ud83d\udcca

Platform
Substack
PricingOnly free issuesPublishesInfrequently
Issues25Founded6 years agoLast Issuea month ago
Active

Read this Newsletter

jaydimonte.substack.com
Artwork for Day by Jay

Latest Issues

The Right Conditions

There’s a graveyard of startups who were right about the future but wrong about the timing.

Webvan and Instacart both bet that consumers would buy groceries online. The difference between an $11B market cap and zero? About a decade.

It’s...

a month ago
7

AI is coming for the jobs people actually like

We spend a lot of time talking about AI taking jobs. We spend almost none asking whether they are the right ones.

Before automated switching, there were telephone operators, plugging and unplugging cables into boards while supervisors time...

5 months ago
20
3

SaaS Was Never About the Software

Last week, $300B of SaaS market cap evaporated in a matter of days, marking the start of the SaaS-pocalypse. Naturally, AI was to blame. Never again will growth rates resume. Market sizes have permanently shrunk. The era of high-margin recu...

7 months ago
20
12

When Power Laws Collide, Incentives Do Too

VC has always been a power law business. But never more so than today.

Historically power laws described exits. Now, it’s about fundraising:

  • 12 firms collected 50%+ in the first half of 2025. It was 9 last year.

  • 63% of capital we...

10 months ago
12
9

AI Raises a Big Question, but Legacy Industries Have Already Answered It

AI is throwing venture investing into turmoil. Just look at DeepSeek’s bombshell. First, "GPT wrappers" were fragile; now, it’s the models themselves under question. And while hindsight is 20/20, our job is to predict outcomes today.

Soft...

a year ago
71
7

Key Facts

Contact Information
Newsletter Author
Number of Subscribers
Find out how many people subscribe to this newsletter.

Related Newsletters

Audience Metrics

Subscribers, engagement, traffic and sponsorship for Day by Jay.

SubscribersEngagement63Monthly Web Visits
Accepts SponsorsEstimated Cost per Ad

Authors

The writers behind this newsletter.

  • Jackie DiMonte

    Thoughts of the day, usually circulating around venture capital, engineering, and other frameworks

  • Frequently Asked Questions

    How can I access the email archive for Day by Jay?

    You can find recent issues that have been published by Day by Jay on Reletter by scrolling up to where it says Latest Issues. Tap on the link for any of the most recent emails or hit More Issues to see older ones.

    How many subscribers does Day by Jay have?

    To see how many people subscribe to Day by Jay, simply upgrade your Reletter account. We provide readership numbers and lots of other stats for this newsletter so you can decide if it's worth reaching out to.

    How can I advertise in Day by Jay?

    Newsletter advertising can be extremely effective when it's done right. Before you pitch Day by Jay as a potential sponsor or partner, make sure that you've done your research and checked its newsletter stats with Reletter.

    Then, personalize one of our winning pitching templates and send it to the right person using the contact info provided.

    How much does it cost to sponsor a publication like Day by Jay?

    Newsletter ad rates (or CPM) vary depending on many factors, including industry, number of subscribers, open rate, ad placement and more.

    To find out how much an ad will cost, contact Day by Jay using the contact information provided and ask for a copy of their media kit.

    How can I find newsletters related to Day by Jay?

    Scroll up to where it says Related Newsletters to see other publications like Day by Jay. You can also search our email newsletter directory to discover other newsletters that cover the topics you're interested in.

    How do I contact Day by Jay?

    Reletter provides this newsletter's website URL above, where you will often find their contact information. We also provide links to associated social media accounts and pitching templates so you can reach out fast.