← dso_drift_severe (all companies) · ZD (all signals) · all methodology
dso_drift_severe on ZIFF DAVIS, INC. (ZD)
SIC 4822 — Telegraph & Other Message Communications · CIK 1084048 · default direction: short
Definition
Fires on Days Sales Outstanding rising >25% YoY while revenue grows <10%. Channel-stuffing / receivables-quality precursor.
Every time the signal fired on ZD
| FY | Filing date | Event date | 1d | 5d | 20d | 60d | 252d |
|---|---|---|---|---|---|---|---|
| FY2024 | 2025-02-25 | 2025-02-25 | -9.49% | -17.73% | -11.79% | -35.05% | -41.79% |
| FY2019 | 2020-03-02 | 2020-03-02 | -0.75% | -3.83% | -15.66% | -10.14% | +26.29% |
| FY2010 | 2011-02-28 | 2011-02-28 | -0.89% | -1.00% | +0.41% | -4.30% | +5.99% |
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 | 2,382 | +0.25% | +44.16% | short | -0.49% | 35 | -0.04 |
| 5d | 2,381 | -0.30% | +44.18% | short | +0.11% | 36 | +0.01 |
| 20d | 2,351 | +2.47% | +43.26% | short | -2.54% | 40 | -0.02 |
| 60d | 2,258 | +16.34% | +45.44% | short | -11.34% | 51 | -0.06 |
| 252d | 2,213 | +32.55% | +49.30% | short | -24.65% | 102 | -0.10 |
Net PnL is direction × stock return − round-trip execution cost (5 bps half-spread + ADV-tiered borrow). See dso_drift_severe methodology for the full audit.