Cumulative holdings, every disclosed buy, share price, and the best-fit saturation curve.
Tractial (BD Multimedia) holds 26.72 BTC across 6 disclosed purchases. Average cost basis $128,339 per BTC. Last 30 days: 0 BTC. Last 90 days: 0 BTC — 0/week. Best fit: Richards (R² 0.86). Curve flattens toward 31.73 BTC, steepest accumulation Jul 2025.
All BTC transactions, most recent first.
| Date | BTC | Spot | USD Cost | Cumulative |
|---|---|---|---|---|
| Oct 14, 2025 | 1.69 | $106.1K | $179.3K | 26.72 |
| Jul 22, 2025 | 10.28 | $143.9K | $1.5M | 25.03 |
| Jun 27, 2025 | 10.95 | $125.6K | $1.4M | 14.75 |
| Jun 20, 2025 | 0.3 | $103.2K | $30.9K | 3.8 |
| Jun 6, 2025 | 0.2 | $104.4K | $20.9K | 3.5 |
| May 30, 2025 | 3.3 | $104.0K | $343.2K | 3.3 |
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.