Hindsight Markets / Small-cap stocks on October 5, 2026

SDEV on October 5, 2026: why it ran

Published October 12, 2026 · By Hindsight Markets

On October 5, 2026, SDEV opened up 31.3% from the previous close of 7.48 and reached 12.73 at 6:18 a.m. ET. The exchange halted it 6 times.

Previous close

7.48

Open, 9:30 a.m.

9.82

Gap at the open

up 31.3%

Pre-market high

12.73 at 6:18 a.m.

High, 4 a.m. to 4 p.m.

12.73 at 6:18 a.m.

Low, 4 a.m. to 4 p.m.

3.25

After-hours high, 4 p.m. to 8 p.m.

3.94 at 4:00 p.m.

Last trade before 4:00 p.m.

3.93

Volume

48.20 million

Relative volume

4.3x

Float

29.08 million shares, from filings as of October 5, 2026

Shares outstanding

51.75 million

Halts

6

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 4:00 a.m. ET, newest first, from the same feeds the replay shows.

No news found before the move.

How it traded

Gap and fade. It gapped up 31.3% to 9.82 at the open and traded below the open by 4:00 p.m., at 3.93.

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: 19.26 million shares before the 9:30 a.m. open (40%), 5.23 million in the first 30 minutes (11%), and 23.70 million in the rest of the day to 8 p.m. (49%).
• Float rotation, the volume since 4 a.m. against the float of 29.08 million shares: past it once at 10:26 a.m.
• The halt at 9:34 a.m.: down 22.0% in the 5 minutes into it, reopened at 7.61, up 0.4% from the last trade before it, then down 10.0% over the next 5 minutes.
• The halt at 9:40 a.m.: down 9.6% in the 5 minutes into it, reopened at 6.82, down 0.4% from the last trade before it, then down 14.7% over the next 5 minutes.
• The halt at 9:55 a.m.: down 11.1% in the 5 minutes into it, reopened at 5.40, down 3.4% from the last trade before it, then down 10.1% over the next 5 minutes.
• The halt at 10:13 a.m.: up 16.5% in the 5 minutes into it, reopened at 5.74, up 3.1% from the last trade before it, then down 13.6% over the next 5 minutes.
• The halt at 10:31 a.m.: down 11.0% in the 5 minutes into it, reopened at 4.30, down 1.6% from the last trade before it, then down 6.9% over the next 5 minutes.
• The halt at 11:02 a.m.: up 16.0% in the 5 minutes into it, reopened at 4.95, up 0.2% from the last trade before it, then down 7.3% over the next 5 minutes.
• Other days SDEV met the small-cap rule in our recaps: 8, the latest on October 6, 2026.

Halts

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.