14.57 USD
↘ 2.70 (15.60%)PRE MARKET (AS OF 09:29 AM EDT)
SMMT Stock Premarket
Summit Therapeutics Inc. Common Stock
SMMTNASDAQ • USD
Market: OPEN
Premarket trading runs 4:00 AM – 9:30 AM ET.
SMMT last traded at $14.57 in premarket, down $2.70 (15.60%) from its previous close of $17.27. Historically, 12% of SMMT gap-downs of 5% or more have fully filled within one trading day.
📅 SMMT is scheduled to report earnings on Oct 19, 2026 before the open (confirmed), with an estimated EPS of $-0.29. SMMT earnings details →
SMMT Premarket Chart
SMMT Premarket News
Gap Analytics — 5-year history, 5% minimum gap
Over the past 5 years, SMMT has had 31 qualifying gap events (gaps of 5% or more at the open) — 14 gap-ups and 17 gap-downs. Gap-ups averaged +10.9%, 71% have fully filled, median time to fill 1.5 trading days. Gap-downs averaged -10.1%, 76% have fully filled, median time to fill 4 trading days. Most recent: a +22.2% gap up 7 days ago, still unfilled. SMMT has 3 unfilled gaps from the past 60 days; the largest is a +22.2% gap up on Sep 29, 2026, currently 81% retraced. Average 20-trading-day return after a SMMT gap up: -2.94%. After a gap down: +11.14%.
Gap Ups14 events
Fill Rate
71.4%
Avg Gap
10.9%
Avg 50% Fill
1d
Avg Fill
1.5d
Gap Downs17 events
Fill Rate
76.5%
Avg Gap
10.1%
Avg 50% Fill
1d
Avg Fill
4d
Avg Gap Fill by Timeframes
Gap Ups
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 71% | 86% | 86% | 93% |
| fills 50% | 64% | 86% | 86% | 86% |
| fills 75% | 50% | 86% | 86% | 86% |
| fills 100% | 36% | 64% | 71% | 71% |
Gap Downs
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 71% | 94% | 100% | 100% |
| fills 50% | 59% | 71% | 76% | 82% |
| fills 75% | 41% | 59% | 59% | 71% |
| fills 100% | 12% | 53% | 53% | 65% |
Active Unfilled Gaps (past 60 days)
7 days ago
2026-09-29
Gap %
+22.16%
Gap From
$15.48
% vs Current
-10.57%
retraced 81% to $16.15
33 days ago
2026-09-03
Gap %
+6.30%
Gap From
$14.60
% vs Current
-15.66%
retraced 37% to $15.18
41 days ago
2026-08-26
Gap %
+10.40%
Gap From
$13.36
% vs Current
-22.82%
retraced 99% to $13.37
Complete Gap History — 31 events
| Date | Gap From | Gap % | Status | Days to 50% | Days to Fill | % of Gap Filled After | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 day | 1 week | 2 week | 4 week | ||||||
| 7 days ago | $15.48 | +22.16% | Open | 1d | — | 80% | 80% | 80% | 80% |
| 27 days ago | $17.28 | +5.35% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2026-09-03 | $14.60 | +6.30% | Open | — | — | 1% | 1% | 1% | 37% |
| 2026-08-26 | $13.36 | +10.40% | Open | 2d | — | 46% | 99% | 99% | 99% |
| 2026-07-24 | $14.98 | -8.41% | Filled | 1d | 13d | 56% | 56% | 56% | 100% |
| 2026-06-10 | $14.29 | -8.20% | Filled | 1d | 4d | 80% | 100% | 100% | 100% |
| 2026-05-22 | $17.47 | -5.67% | Filled | 1d | 3d | 93% | 100% | 100% | 100% |
| 2026-05-01 | $21.46 | -25.35% | Open | 7d | — | 15% | 40% | 62% | 62% |
| 2025-10-24 | $18.75 | +5.97% | Filled | 1d | 4d | 63% | 100% | 100% | 100% |
| 2025-10-20 | $20.99 | -10.20% | Open | 1d | — | 100% | 100% | 100% | 100% |
| 2025-09-12 | $18.60 | +6.56% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2025-09-10 | $18.82 | -7.20% | Filled | 2d | 3d | 47% | 100% | 100% | 100% |
| 2025-09-08 | $25.98 | -17.13% | Open | 26d | — | 28% | 28% | 28% | 28% |
| 2025-08-26 | $26.27 | +14.12% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2025-05-30 | $26.21 | -19.11% | Filled | 24d | 28d | 9% | 9% | 37% | 37% |
| 2025-05-02 | $24.67 | +5.11% | Filled | 3d | 3d | 10% | 100% | 100% | 100% |
| 2025-04-25 | $36.70 | -6.05% | Open | 1d | — | 65% | 65% | 65% | 65% |
| 2025-04-23 | $27.35 | +9.51% | Filled | 1d | 3d | 53% | 100% | 100% | 100% |
| 2025-04-07 | $17.36 | -7.78% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2025-04-03 | $20.46 | -5.21% | Filled | 6d | 6d | 23% | 100% | 100% | 100% |
| 2025-03-26 | $20.24 | +5.98% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2025-01-27 | $23.76 | -5.18% | Filled | 1d | 2d | 84% | 100% | 100% | 100% |
| 2024-10-04 | $18.61 | +8.60% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2024-09-27 | $22.81 | -5.79% | Filled | 14d | 14d | 16% | 42% | 42% | 100% |
| 2024-09-12 | $22.70 | +8.77% | Filled | 6d | 8d | 17% | 88% | 100% | 100% |
| 2024-09-09 | $12.27 | +30.89% | Open | — | — | 3% | 3% | 3% | 3% |
| 2024-08-05 | $10.41 | -9.17% | Filled | 1d | 2d | 75% | 100% | 100% | 100% |
| 2024-08-02 | $10.66 | -5.63% | Filled | 1d | 6d | 60% | 100% | 100% | 100% |
| 2024-06-03 | $8.69 | +13.30% | Filled | 1d | 2d | 97% | 100% | 100% | 100% |
| 2024-05-31 | $10.92 | -16.94% | Filled | 33d | 39d | 23% | 47% | 47% | 47% |
| 2023-01-04 | $5.00 | -8.47% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
Related: SMMT quote & chart · After hours · Technical analysis · Fundamentals · Earnings · Short interest
Frequently Asked Questions
What is SMMT's premarket price?
Summit Therapeutics (SMMT) is trading at $14.57 in premarket, down $2.70 (15.60%) from the previous close of $17.27.
Why is SMMT moving in premarket?
Summit Therapeutics (SMMT) is down 15.60% from its previous close in premarket trading. Premarket moves are usually driven by company-specific news, earnings results, analyst rating or price-target changes, or broad market and sector sentiment. Check the latest SMMT premarket headlines and gap history below for the likely catalyst.
When does SMMT premarket trading start?
Premarket trading for SMMT 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.
How often does SMMT fill its gaps?
Over the past 5 years, 71% of SMMT gap-ups have fully filled and 76% of gap-downs have filled. Median time to fill is 2 trading days for gap-ups and 4 trading days for gap-downs.
Does SMMT have any unfilled gaps?
Yes. SMMT has 3 unfilled gaps from the past 60 days. The largest is a +22.2% gap up from Sep 29, 2026 and is currently 81% retraced.
What's the average return after a SMMT gap?
Based on 31 qualifying gap events over the past 5 years, the average 20-trading-day return after a SMMT gap up is -2.94%, and after a gap down is +11.14%.
When does SMMT report earnings?
SMMT is scheduled to report earnings on Oct 19, 2026 before the open (confirmed), with an estimated EPS of $-0.29. Summit Therapeutics is widely expected to report Q3 2026 earnings on October 19, 2026. While a formal press release from the company specifically confirming this date was not found as of October 1, multiple financial sources including MarketBeat, Zacks, and Stocktwits consistently list this date, often specifying a pre-market or after-hours timing with a conference call at 8:00 AM ET.