Cumulative holdings, every disclosed buy, share price, and the best-fit saturation curve.
Belgravia Hartford holds 83.13 BTC across 5 disclosed purchases. Average cost basis $144,358 per BTC. Last 30 days: 0 BTC. Last 90 days: 0 BTC — 0/week. Best fit: Richards (R² 0.98). Curve flattens toward 2,535 BTC, steepest accumulation Oct 2025.
All BTC transactions, most recent first.
| Date | BTC | Spot | USD Cost | Cumulative |
|---|---|---|---|---|
| Aug 1, 2025 | 42.38 | $163.3K | $6.9M | 83.13 |
| Jul 24, 2025 | 25 | $161.2K | $4.0M | 40.75 |
| Jul 2, 2025 | 9.35 | $15.6K | $145.9K | 15.75 |
| Jun 20, 2025 | 1.53 | $143.8K | $220.3K | 6.39 |
| Jun 9, 2025 | 4.86 | $140.8K | $684.6K | 4.86 |
Cumulative BTC held — the staircase. Each step is a disclosed purchase; the step height is the size of the buy.
Purchase bubbles — one per buy. Bubble size is the BTC count; vertical position is the per-BTC cost basis. Small-and-high is a small buy at a high price; big-and-low is a big buy made cheap.
Share price — the secondary line on the right axis. Did the company stack faster when its equity ran hot?
Regression fit — the best of a Richards and a Gompertz saturation curve, chosen by log-R². It has to flatten: there are only 21 million Bitcoin.
Controls — Linear/Log switches the BTC axis. Play animates the curve forward through disclosure time. ‹ › steps through the cohort by holdings.