← margin_compression_severe (all companies) · AMPG (all signals) · all methodology
margin_compression_severe on AmpliTech Group, Inc. (AMPG)
SIC 3669 — Communications Equipment, NEC · CIK 1518461 · default direction: short
Definition
Fires on >500 bps year-over-year decline in operating margin. Captures the 'good business getting worse' pattern.
Every time the signal fired on AMPG
| FY | Filing date | Event date | 1d | 5d | 20d | 60d | 252d |
|---|---|---|---|---|---|---|---|
| FY2025 | 2026-03-26 | 2026-03-26 | -32.08% | -27.17% | -26.42% | — | — |
| FY2024 | 2025-03-31 | 2025-03-31 | -4.52% | -16.13% | +12.90% | +34.84% | +22.58% |
| FY2021 | 2022-03-31 | 2022-03-31 | -8.04% | -18.75% | -21.73% | -42.56% | -19.20% |
| FY2020 | 2021-03-31 | 2021-03-31 | +7.12% | -12.51% | -43.84% | -55.16% | -70.41% |
| FY2019 | 2020-03-25 | 2021-01-08 | +4.55% | -2.27% | +50.00% | +8.41% | -58.41% |
| FY2017 | 2018-04-02 | 2021-01-08 | +4.55% | -2.27% | +50.00% | +8.41% | -58.41% |
Forward returns are stock returns from event date (next trading day after filing). Sign is raw stock direction; the trade direction is in the calibration table below.
Universe-wide calibration (this signal across all companies)
| Horizon | n events | Gross stock ret | Hit rate | Trade dir | Net PnL | Cost (bps) | r/σ net |
|---|---|---|---|---|---|---|---|
| 1d | 2,429 | +2.00% | +36.27% | short | -2.03% | 46 | -0.02 |
| 5d | 2,429 | +3.35% | +38.74% | short | -2.80% | 47 | -0.02 |
| 20d | 2,364 | +6.26% | +38.32% | short | -4.81% | 52 | -0.03 |
| 60d | 2,266 | +78.74% | +40.47% | short | -75.14% | 65 | -0.03 |
| 252d | 2,195 | +41.39% | +39.77% | short | -31.94% | 126 | -0.09 |
Net PnL is direction × stock return − round-trip execution cost (5 bps half-spread + ADV-tiered borrow). See margin_compression_severe methodology for the full audit.