Invariant

Substack by Devin LaSarre · launched May 9, 2022

Valuation. Business analysis. Investing. Finance meets curiosity, creativity, and skepticism.

Top in Finance
#506
Paid leaderboard
#480
Subscribers
7.0K

rounded by Substack

Paid subscribers
100+ paid
Badge
Bestseller 100
Followers
24K
Paid plan
$18/mo
Recommends
34

other newsletters

Growth history

Rank in Substack’s finance leaderboard: #506 today

Stats worth sharing

Tracked since Sep 10, 20261 daily snapshot so far. The card below is built from what we track and refreshes nightly. It is free for Invariant to post, embed or send to readers, as long as the watermark stays on it.

Percentile
Top 97%

of 525 ranked finance newsletters

Best rank seen
#506

on Sep 10, 2026

Invariant — rank, subscribers and growth, tracked by Stock Market Watch
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The card shows a growth line once there is a second day of snapshots to compare, or once this newsletter has three posts with reaction counts.

Recent posts

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Data: Substack public leaderboards and publication archives, refreshed nightly, plus public beehiiv sitemaps and recommendation pages, refreshed weekly. Source for this page: Invariant. Subscriber counts are Substack’s own rounded public figures, so week-on-week changes move in steps. beehiiv audience sizes are self-reported by the publisher and are not verified. Last snapshot: Sep 10, 2026.