268.86 USD
↗ 10.50 (4.06%)PRE MARKET (AS OF 05:29 AM EDT)
SIMO Stock Premarket
Silicon Motion Technology Corporation
SIMONASDAQ • USD
Market: CLOSED
Premarket trading runs 4:00 AM – 9:30 AM ET.
SIMO last traded at $268.86 in premarket, up $10.50 (4.06%) from its previous close of $258.36.
📅 SIMO is expected to report earnings around Oct 29, 2026 after the close (estimated), with an estimated EPS of $3.30. SIMO earnings details →
SIMO Premarket Chart
Gap Analytics — 5-year history, 5% minimum gap
Over the past 5 years, SIMO has had 16 qualifying gap events (gaps of 5% or more at the open) — 10 gap-ups and 6 gap-downs. Gap-ups averaged +10.4%, 60% have fully filled, median time to fill 2 trading days. Gap-downs averaged -6.3%, 100% have fully filled, median time to fill 3 trading days. Most recent: a +5.8% gap up on Aug 4, 2026, still unfilled. SIMO has 2 unfilled gaps from the past 60 days; the largest is a +24% gap up on Jul 30, 2026, currently 50% retraced. Average 20-trading-day return after a SIMO gap up: +21.75%. After a gap down: +25.58%.
Gap Ups10 events
Fill Rate
60.0%
Avg Gap
10.4%
Avg 50% Fill
1d
Avg Fill
2d
Gap Downs6 events
Fill Rate
100.0%
Avg Gap
6.3%
Avg 50% Fill
1.5d
Avg Fill
3d
Avg Gap Fill by Timeframes
Gap Ups
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 90% | 90% | 90% | 90% |
| fills 50% | 60% | 80% | 80% | 80% |
| fills 75% | 30% | 60% | 60% | 60% |
| fills 100% | 20% | 60% | 60% | 60% |
Gap Downs
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 100% | 100% | 100% | 100% |
| fills 50% | 50% | 100% | 100% | 100% |
| fills 75% | 33% | 83% | 100% | 100% |
| fills 100% | 0% | 83% | 100% | 100% |
Active Unfilled Gaps (past 60 days)
21 days ago
2026-08-04
Gap %
+5.76%
Gap From
$251.52
% vs Current
+3.43%
retraced 53% to $258.30
26 days ago
2026-07-30
Gap %
+23.99%
Gap From
$209.68
% vs Current
-13.78%
retraced 50% to $235.09
Complete Gap History — 16 events
| Date | Gap From | Gap % | Status | Days to 50% | Days to Fill | % of Gap Filled After | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 day | 1 week | 2 week | 4 week | ||||||
| 21 days ago | $251.52 | +5.76% | Open | 1d | — | 53% | 53% | 53% | 53% |
| 25 days ago | $255.10 | +5.84% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 26 days ago | $209.68 | +23.99% | Open | — | — | 49% | 49% | 49% | 49% |
| 28 days ago | $244.45 | -7.55% | Filled | 3d | 3d | 32% | 100% | 100% | 100% |
| 2026-07-21 | $252.61 | +6.86% | Filled | 1d | 5d | 52% | 100% | 100% | 100% |
| 2026-07-17 | $272.45 | -5.66% | Filled | 1d | 3d | 91% | 100% | 100% | 100% |
| 2026-07-14 | $299.51 | +6.01% | Filled | 1d | 2d | 74% | 100% | 100% | 100% |
| 2026-07-07 | $318.86 | -6.31% | Filled | 2d | 3d | 26% | 100% | 100% | 100% |
| 2026-06-25 | $321.66 | +7.18% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2026-06-23 | $336.90 | -7.69% | Filled | 2d | 3d | 46% | 100% | 100% | 100% |
| 2026-06-18 | $307.12 | +5.39% | Filled | 3d | 3d | 45% | 100% | 100% | 100% |
| 2026-06-04 | $306.57 | -5.40% | Filled | 1d | 10d | 73% | 73% | 100% | 100% |
| 2026-05-26 | $276.14 | +5.80% | Filled | 1d | 2d | 100% | 100% | 100% | 100% |
| 2026-04-29 | $149.18 | +30.71% | Open | — | — | 5% | 5% | 5% | 5% |
| 2026-04-08 | $117.01 | +6.18% | Open | 2d | — | 49% | 56% | 56% | 56% |
| 2026-04-02 | $116.98 | -5.39% | Filled | 1d | 2d | 84% | 100% | 100% | 100% |
Frequently Asked Questions
What is SIMO's premarket price?
Silicon Motion Technology (SIMO) is trading at $268.86 in premarket, up $10.50 (4.06%) from the previous close of $258.36.
Why is SIMO moving in premarket?
Silicon Motion Technology (SIMO) is up 4.06% 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 SIMO premarket headlines and gap history below for the likely catalyst.
When does SIMO premarket trading start?
Premarket trading for SIMO 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 SIMO fill its gaps?
Over the past 5 years, 60% of SIMO gap-ups have fully filled and 100% of gap-downs have filled. Median time to fill is 2 trading days for gap-ups and 3 trading days for gap-downs.
Does SIMO have any unfilled gaps?
Yes. SIMO has 2 unfilled gaps from the past 60 days. The largest is a +24.0% gap up from Jul 30, 2026 and is currently 50% retraced.
What's the average return after a SIMO gap?
Based on 16 qualifying gap events over the past 5 years, the average 20-trading-day return after a SIMO gap up is +21.75%, and after a gap down is +25.58%.
When does SIMO report earnings?
SIMO is expected to report earnings around Oct 29, 2026 after the close (estimated), with an estimated EPS of $3.30.