Activity Analysis Center
Investor Due Diligence Report
by Oliver Ding
ghostBusiness
Becoming an Activity Analyst
Investor Due Diligence Report
by Oliver Ding
Becoming an Activity Analyst
4K
~0%
Subscriber count is a platform estimate
Pricing
$120/mo
$1200/yr annual option
$6K
~120 est. paid subs
$3K/mo – $9K/mo(±50%)
~5x per week
4.6 posts/week
67/100
Consistent (~2.6d avg)
| Newsletter | Subscribers | Weekly Growth | Price | Platform |
|---|---|---|---|---|
| future/proof | 351K | +0.4% | $9/mo | substack |
| a16z | 278K | +0.6% | Free | substack |
| Founding Journey | 251K | N/A | $50/mo | substack |
| a16z speedrun | 239K | +2.4% | Free | substack |
| The Stoic Manual |
| Month | Subscribers | Est. Revenue | Change |
|---|---|---|---|
| Feb 2026 | 4K | $6,000 | — |
| Mar 2026 | 2K | $3,000 | -50.0% |
| Apr 2026 | 1K | $1,500 | -50.0% |
| May 2026 | 2K | $3,000 | +100.0% |
| Jun 2026 | 2K | $3,000 | ~0% |
| Jul 2026 | 2K | $3,000 |
Platform Dependency
Uses ghost platform
Publishing Consistency
Variable publishing frequency
Key Person
Single-author publication — key-person dependency
Revenue Model
Active paid subscription tier
Subscriber threshold
4K subscribers — above the 2K category median for first paid tier
Has paid tier
Active paid subscription offering
Peer monetization
73% of 353 similar-size peers in Business have paid tiers
Pricing position
$120/mo vs $5/mo category median (856 newsletters)
| Date | Monthly | Annual |
|---|---|---|
| Feb 2026 | $120 | $1,200 |
| Feb 2026 | $60 | $600 |
Disclaimer: This report is generated automatically based on publicly available data and proprietary estimation models. Estimated subscriber counts are derived from engagement patterns and should be verified through direct disclosure. Revenue estimates are based on known pricing and estimated paid subscriber counts. This report is for informational purposes only and should not be the sole basis for investment decisions.
| Component | Score | Weight |
|---|---|---|
| Publishing Consistency | 53/100 | 10% |
| 204K |
| +5.4% |
| $39/mo |
| substack |
| ~0% |
| Aug 2026 | 3K | $4,500 | +50.0% |
| Sep 2026 | 4K | $6,000 | +33.3% |
| Oct 2026 | 4K | $6,000 | ~0% |