American Bitcoin Corp (ABTC) — BTC Stacking Curve
Cumulative holdings, every disclosed buy, share price, and the best-fit saturation curve.
American Bitcoin Corp holds 7,500 BTC across 15 disclosed purchases. Average cost basis $97,990 per BTC. Last 30 days: 200 BTC. Last 90 days: 1,000 BTC — 77.78/week. Best fit: Gompertz (R² 0.99). Curve flattens toward 8,159 BTC, steepest accumulation Sep 2025.
Transaction history
All BTC transactions, most recent first.
| Date | BTC | Spot | USD Cost | Cumulative |
|---|---|---|---|---|
| May 18, 2026 | 200 | $76.3K | $15.3M | 7,500 |
| May 7, 2026 | 300 | $81.0K | $24.3M | 7,300 |
| Mar 30, 2026 | 101 | $66.0K | $6.7M | 7,000 |
| Mar 18, 2026 | 399 | $74.0K | $29.5M | 6,899 |
| Mar 4, 2026 | 461 | $68.7K | $31.6M | 6,500 |
| Feb 17, 2026 | 196 | $68.0K | $13.3M | 6,039 |
| Jan 27, 2026 | 416 | $96.1K | $40.0M | 5,843 |
| Jan 5, 2026 | 329 | $93.0K | $30.6M | 5,427 |
| Dec 16, 2025 | 731 | $86.4K | $63.2M | 5,098 |
| Dec 12, 2025 | 363 | $92.5K | $33.6M | 4,367 |
| Nov 7, 2025 | 139 | $101.4K | $14.1M | 4,004 |
| Oct 27, 2025 | 1,422 | $114.5K | $162.8M | 3,865 |
| Sep 8, 2025 | 502 | $111.1K | $55.8M | 2,443 |
| Aug 13, 2025 | 1,726 | $111.2K | $191.9M | 1,941 |
| May 31, 2025 | 215 | $104.0K | $22.4M | 215 |
How to read this chart
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.