Hindsight Markets Recaps Small-cap stocks on October 27, 2026
BOOM, October 27: an 8-K and an after-hours run to $6.59
BOOM barely moved in the regular session after an 8-K, then ran to $6.59 after the close.
News via Stock News API
What happened
Before the open
The news came first: an 8-K at 4:06 p.m. Before the bell it reached $5.50, on 321 shares.
The open
It opened near its previous close, at $5.40.
The close
It closed at $5.35, near its high. After the close it ran to $6.59 by 4:10 p.m.
What to take from it: The day's real move came after the 4 p.m. close, not in the regular session.
The details
How it traded, step by step
After-hours run. It opened up 0.6% at $5.40 and traded at $5.35 at the 4:00 p.m. close, then ran 23.2% from $5.35 to $6.59 at 4:10 p.m. after the close, on 552,053 shares traded after hours.
| Time (ET) | What happened |
|---|---|
| 7:34 a.m. | Pre-market high, $5.50 |
| 9:30 a.m. | The open: $5.40, up 0.6% from the previous close |
| 9:52 a.m. | High of the day to the close, $5.54 |
| 3:59 p.m. | Last trade before the 4:00 p.m. close, $5.35, 3.4% below the high |
| 4:05 p.m. | News (GlobeNewsWire): DMC Global Reports Third Quarter Financial Results |
| 4:06 p.m. | SEC filing 8-K: 8-K |
| 4:07 p.m. | First trade 20% above the previous close of $5.37 |
The shape's name comes from a fixed rule, not a judgement (how shapes are named). Halts are in the halt table below.
The day in numbers
- Previous close
- $5.37
- Open, 9:30 a.m.
- $5.40
- Gap at the open
- +0.6%
- Pre-market high
- $5.50 at 7:34 a.m.
- High, 4 a.m. to 4 p.m.
- $5.54 at 9:52 a.m.
- Low, 4 a.m. to 4 p.m.
- $5.28
- Close, 4 p.m.
- $5.35
- Change at 4 p.m.
- −0.4%
- After-hours high, 4 p.m. to 8 p.m.
- $6.59 at 4:10 p.m.
- Volume, 4 a.m. to 4 p.m.
- 118,915
- Volume after hours, 4 p.m. to 8 p.m.
- 552,053
- Relative volume by 8 p.m.
- 11.1×
- Float
- 19.47 million shares, from filings as of October 27, 2026
- Shares outstanding
- 20.54 million
- From news to the move: the first trade 20% above the previous close came less than a minute after the latest SEC filing before it (8-K, 4:06 p.m.).
- Volume, from the one-minute bars: 321 shares before the 9:30 a.m. open (0%), 2,430 in the first 30 minutes (0%), and 668,217 in the rest of the day to 8 p.m. (100%).
- Other days BOOM met the small-cap rule in our recaps: 1, the latest on October 28, 2026.
- The next session, October 28, 2026, it was up 44.1% from its previous close at the 4:00 p.m. close.
On the day's lists: the intraday runners, after-hours movers. It is here because it met the small-cap rule on the intraday runners: price $2 to $20, up 10% or more, relative volume 5× or more, float under 20 million shares, its high reached $1 or more and it started the day at $20 or under (the rule every page uses).
Halts (none)
The exchange's halt feed shows no halts for BOOM that day.
Halt bands that day: the LULD plan's Amendment 18 rules (what that means, LULD calculator).
How we read the data, name a day's shape and pick the stocks: methodology.
Trade this day
Replay BOOM on October 27, 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.