Premarket trading runs 4:00 AM – 9:30 AM ET.
Over the past 5 years, ZG has had 19 qualifying gap events (gaps of 5% or more at the open) — 10 gap-ups and 9 gap-downs. Gap-ups averaged +9.3%, 80% have fully filled, median time to fill 20.5 trading days. Gap-downs averaged -9.3%, 56% have fully filled, median time to fill 2 trading days. Most recent: a +6.5% gap up on Apr 8, 2026, which filled in 2 trading days. Average 20-trading-day return after a ZG gap up: +5.61%. After a gap down: -5.97%.
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 50% | 50% | 60% | 70% |
| fills 50% | 10% | 30% | 40% | 50% |
| fills 75% | 10% | 30% | 30% | 40% |
| fills 100% | 0% | 30% | 30% | 40% |
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 67% | 89% | 89% | 89% |
| fills 50% | 44% | 78% | 78% | 78% |
| fills 75% | 33% | 44% | 44% | 56% |
| fills 100% | 22% | 44% | 44% | 44% |
| Date | Gap From | Gap % | Status | Days to 50% | Days to Fill | % of Gap Filled After | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 day | 1 week | 2 week | 4 week | ||||||
| 2026-04-08 | $40.92 | +6.52% | Filled | 1d | 2d | 84% | 100% | 100% | 100% |
| 2026-02-11 | $54.42 | -5.73% | Open | — | — | 31% | 31% | 31% | 31% |
| 2025-12-15 | $72.38 | -7.43% | Open | 2d | — | 15% | 57% | 59% | 77% |
| 2025-04-07 | $65.32 | -5.02% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2025-04-03 | $69.75 | -5.32% | Filled | 1d | 27d | 57% | 57% | 57% | 57% |
| 2025-02-12 | $83.84 | -12.83% | Open | 5d | — | 35% | 55% | 55% | 55% |
| 2024-11-07 | $56.08 | +15.91% | Open | — | — | 3% | 3% | 3% | 3% |
| 2024-08-08 | $40.35 | +15.46% | Open | — | — | 18% | 18% | 18% | 18% |
| 2024-06-12 | $41.74 | +6.42% | Filled | 36d | 37d | 0% | 0% | 11% | 46% |
| 2024-02-14 | $52.06 | +7.76% | Filled | 3d | 4d | 34% | 100% | 100% | 100% |
| 2023-07-11 | $46.60 | +5.77% | Filled | 30d | 48d | 17% | 17% | 17% | 17% |
| 2022-12-13 | $34.45 | +6.36% | Filled | 3d | 4d | 28% | 100% | 100% | 100% |
| 2022-11-10 | $31.85 | +7.19% | Filled | 9d | 30d | 5% | 5% | 61% | 61% |
| 2022-08-05 | $38.13 | -9.78% | Filled | 1d | 2d | 82% | 100% | 100% | 100% |
| 2022-05-06 | $39.05 | -14.80% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2022-02-11 | $47.86 | +14.20% | Filled | 15d | 17d | 27% | 27% | 43% | 100% |
| 2021-12-03 | $53.77 | +7.85% | Filled | 24d | 24d | 38% | 38% | 41% | 41% |
| 2021-11-03 | $85.48 | -14.87% | Open | — | — | 16% | 16% | 16% | 16% |
| 2021-10-18 | $94.30 | -7.92% | Filled | 3d | 4d | 6% | 100% | 100% | 100% |
No premarket activity has been recorded yet for ZG today. The previous regular-session close was $35.98.
Premarket trading for ZG on the NASDAQ runs from 4:00 AM to 9:30 AM Eastern Time, ahead of the regular session (9:30 AM – 4:00 PM ET). After-hours runs from 4:00 PM to 8:00 PM ET.
Over the past 5 years, 80% of ZG gap-ups have fully filled and 56% of gap-downs have filled. Median time to fill is 21 trading days for gap-ups and 2 trading days for gap-downs.
No. ZG has no unfilled gap events from the past 60 days; all recent gaps have been filled.
Based on 19 qualifying gap events over the past 5 years, the average 20-trading-day return after a ZG gap up is +5.61%, and after a gap down is -5.97%.