Takuya Matsuyama
Investor Due Diligence Report
by Takuya Matsuyama
ghostTechnology
Join me on a behind-the-scenes coding journey. Weekly updates on projects, tutorials, and videos
70K
~0%
Subscriber count is a platform estimate
Pricing
$5/mo
$50/yr annual option
$29K
~6.7K est. paid subs
$15K/mo – $44K/mo(±50%)
1.0
0.00%
(comments + likes) / subscribers
Monthly
0.3 posts/week
78/100
Consistent (~22.5d avg)
| Newsletter | Subscribers | Weekly Growth | Price | Platform |
|---|---|---|---|---|
| 15marches | 11K | N/A | Free | substack |
| Deep Fundamental Research | 2K | N/A | $30/mo | substack |
| Price Point | 2K | N/A | Free | substack |
| Shadowcode Saga: Cyber War & Business Stories | 2K | N/A | $8/mo | substack |
| Month | Subscribers | Est. Revenue | Change |
|---|---|---|---|
| Feb 2026 | 11.5K | $5,079.17 | — |
| Mar 2026 | 8.5K | $3,754.17 | -26.1% |
| Apr 2026 | 1K | $441.67 | -88.2% |
| May 2026 | 20K | $8,833.33 | +1900.0% |
| Jun 2026 | 22.5K | $9,937.5 | +12.5% |
| Jul 2026 | 10K | $4,416.67 |
Platform Dependency
Uses ghost platform
Publishing Consistency
Regular publishing schedule
Key Person
Single-author publication — key-person dependency
Audience Concentration
Consistent engagement across posts
Subscriber threshold
70K subscribers — above the 2K category median for first paid tier
Has paid tier
Active paid subscription offering
Peer monetization
71% of 28 similar-size peers in Technology have paid tiers
Pricing position
$5/mo vs $5/mo category median (545 newsletters)
| Date | Monthly | Annual |
|---|---|---|
| Mar 2026 | $5 | $50 |
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.
Score based on available components only.
| Component | Score | Weight |
|---|---|---|
| Engagement Rate | 57/100 | 30% |
| Ciaran's Crispy Cogitations |
| 1K |
| N/A |
| $5/mo |
| substack |
| -55.6% |
| Aug 2026 | 20K | $8,833.33 | +100.0% |
| Sep 2026 | 17.5K | $7,729.17 | -12.5% |
| Oct 2026 | 50K | $22,083.33 | +185.7% |
Revenue Model
Active paid subscription tier