Hindsight Markets Small-cap stocks on October 6, 2026
SDEV on October 6, 2026: why it ran
On October 6, 2026, SDEV opened down 11.7% from the previous close of 3.94 and reached 5.57 at 4:47 a.m. ET. The exchange halted it once.
- Previous close
- 3.94
- Open, 9:30 a.m.
- 3.48
- Gap at the open
- down 11.7%
- Pre-market high
- 5.57 at 4:47 a.m.
- High, 4 a.m. to 4 p.m.
- 5.57 at 4:47 a.m.
- Low, 4 a.m. to 4 p.m.
- 3.04
- After-hours high, 4 p.m. to 8 p.m.
- 3.54 at 7:07 p.m.
- Last trade before 4:00 p.m.
- 3.33
- Volume
- 28.78 million
- Relative volume
- 2.1x
- Float
- 29.08 million shares, from filings as of October 6, 2026
- Shares outstanding
- 51.75 million
Why it ran
News and SEC filings for SDEV published between the previous session's close and the first minute SDEV traded 20% above it, at 4:30 a.m. ET, newest first, from the same feeds the replay shows.
No news found before the move.
How it traded
Intraday run. It opened down 11.7% at 3.48, then ran from the open to the high of 4.43 in 129 minutes through a halt.
| Time (ET) | What happened |
|---|---|
| 4:30 a.m. | First trade 20% above the previous close of 3.94 |
| 4:47 a.m. | Pre-market high, 5.57 |
| 4:47 a.m. | High of the day to the close, 5.57 |
| 9:30 a.m. | The open: 3.48, down 11.7% from the previous close |
| 11:28 a.m. | Halted: LULD pause (limit up-limit down). Trading resumes at 11:33 a.m. |
| 3:59 p.m. | Last trade before the 4:00 p.m. close, 3.33, 40.2% below the high |
The shape is a fixed rule, not a judgement: gapped 10% or more at the open, ran 10% or more from the open to the high, and faded if it gave back 30% or more of that move by the close.
The day in numbers
- Volume, from the one-minute bars: 14.84 million shares before the 9:30 a.m. open (52%), 1.60 million in the first 30 minutes (6%), and 12.35 million in the rest of the day to 8 p.m. (43%).
- The halt at 11:28 a.m.: up 19.8% in the 5 minutes into it, reopened at 4.18, unchanged from the last trade before it, then up 1.9% over the next 5 minutes.
- Other days SDEV met the small-cap rule in our recaps: 8, the latest on October 5, 2026.
Halts
| Halted | Resumed | Length | Reason in the feed |
|---|---|---|---|
| 11:28 a.m. | 11:33 a.m. | 5 min 0 s | LULD pause (limit up-limit down) |
On this date the LULD plan ran under Amendment 18, in force from February 24, 2020: no band doubling at the open, and the closing doubling only for Tier 1 stocks and Tier 2 stocks whose previous close was at or below three dollars. See LULD halts or work out a band with the LULD calculator.
Trade this day
Replay SDEV on October 6, 2026 in Hindsight Markets: the real tape, the order book and the halts, on a clock you control, and see where your orders would have filled.