44.86 USD
↗ 0.53 (1.20%)PRE MARKET (AS OF 05:29 AM EDT)
BSX Stock Premarket
Boston Scientific Corp.
BSXNYSE • USD
Market: CLOSED
Premarket trading runs 4:00 AM – 9:30 AM ET.
BSX last traded at $44.86 in premarket, up $0.53 (1.20%) from its previous close of $44.33.
📅 BSX is scheduled to report earnings on Jul 29, 2026 before the open (confirmed), with an estimated EPS of $0.83. BSX earnings details →
BSX Premarket Chart
BSX Premarket News
Gap Analytics — 5-year history, 5% minimum gap
Over the past 5 years, BSX has had 9 qualifying gap events (gaps of 5% or more at the open) — 5 gap-ups and 4 gap-downs. Gap-ups averaged +5.7%, 60% have fully filled, median time to fill 44 trading days. Gap-downs averaged -8%, 25% have fully filled, median time to fill 7 trading days. Most recent: a -7.8% gap down on May 27, 2026, still unfilled. BSX has 1 unfilled gap from the past 60 days — a -7.8% gap down on May 27, 2026, currently 2% retraced. Average 20-trading-day return after a BSX gap up: +1.7%. After a gap down: -11.53%.
Gap Ups5 events
Fill Rate
60.0%
Avg Gap
5.7%
Avg 50% Fill
5.5d
Avg Fill
44d
Gap Downs4 events
Fill Rate
25.0%
Avg Gap
8.0%
Avg 50% Fill
10.5d
Avg Fill
7d
Avg Gap Fill by Timeframes
Gap Ups
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 60% | 100% | 100% | 100% |
| fills 50% | 0% | 40% | 60% | 60% |
| fills 75% | 0% | 20% | 20% | 20% |
| fills 100% | 0% | 20% | 20% | 20% |
Gap Downs
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 50% | 50% | 50% | 50% |
| fills 50% | 0% | 25% | 25% | 50% |
| fills 75% | 0% | 25% | 25% | 25% |
| fills 100% | 0% | 0% | 25% | 25% |
Active Unfilled Gaps (past 60 days)
28 days ago
2026-05-27
Gap %
-7.82%
Gap From
$57.64
% vs Current
+26.40%
retraced 2% to $53.20
Complete Gap History — 9 events
| Date | Gap From | Gap % | Status | Days to 50% | Days to Fill | % of Gap Filled After | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 day | 1 week | 2 week | 4 week | ||||||
| 28 days ago | $57.64 | -7.82% | Open | — | — | 2% | 2% | 2% | 2% |
| 2026-04-22 | $59.52 | +5.02% | Filled | 4d | 5d | 24% | 100% | 100% | 100% |
| 2026-03-30 | $69.17 | -7.19% | Open | 18d | — | 30% | 30% | 30% | 54% |
| 2026-02-04 | $91.62 | -11.18% | Open | — | — | 4% | 4% | 4% | 4% |
| 2026-01-15 | $93.74 | -5.85% | Filled | 3d | 7d | 48% | 88% | 100% | 100% |
| 2025-04-23 | $95.05 | +5.21% | Open | — | — | 32% | 32% | 32% | 32% |
| 2025-01-08 | $91.99 | +5.10% | Filled | 3d | 60d | 41% | 74% | 74% | 74% |
| 2024-04-24 | $68.99 | +6.02% | Open | 7d | — | 14% | 48% | 52% | 52% |
| 2022-07-27 | $37.96 | +7.02% | Filled | 41d | 44d | 33% | 33% | 33% | 33% |
Frequently Asked Questions
What is BSX's premarket price?
Boston Scientific (BSX) is trading at $44.86 in premarket, up $0.53 (1.20%) from the previous close of $44.33.
Why is BSX moving in premarket?
Boston Scientific (BSX) is up 1.20% 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 BSX premarket headlines and gap history below for the likely catalyst.
When does BSX premarket trading start?
Premarket trading for BSX on the NYSE 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 BSX fill its gaps?
Over the past 5 years, 60% of BSX gap-ups have fully filled and 25% of gap-downs have filled. Median time to fill is 44 trading days for gap-ups and 7 trading days for gap-downs.
Does BSX have any unfilled gaps?
Yes. BSX has 1 unfilled gap from the past 60 days. The largest is a -7.8% gap down from May 27, 2026 and is currently 2% retraced.
What's the average return after a BSX gap?
Based on 9 qualifying gap events over the past 5 years, the average 20-trading-day return after a BSX gap up is +1.7%, and after a gap down is -11.53%.
When does BSX report earnings?
BSX is scheduled to report earnings on Jul 29, 2026 before the open (confirmed), with an estimated EPS of $0.83. Boston Scientific is officially scheduled to report its Q2 2026 financial results on July 29, 2026, before the market opens, with a conference call at 8:00 AM ET.