Hindsight Markets Small-cap stocks on August 28, 2026
RADX on August 28, 2026: why it ran
On August 28, 2026, RADX opened up 8.8% from the previous close of 2.26 and reached 2.98 at 6:23 a.m. ET. The exchange did not halt it.
- Previous close
- 2.26
- Open, 9:30 a.m.
- 2.46
- Gap at the open
- up 8.8%
- Pre-market high
- 2.98 at 6:23 a.m.
- High, 4 a.m. to 4 p.m.
- 2.98 at 6:23 a.m.
- Low, 4 a.m. to 4 p.m.
- 2.03
- After-hours high, 4 p.m. to 8 p.m.
- 2.41 at 4:00 p.m.
- Last trade before 4:00 p.m.
- 2.40
- Volume
- 184,570
- Relative volume
- 5.4x
- Float
- 10.70 million shares, from filings as of August 28, 2026
- Shares outstanding
- 13.10 million
- Halts
- none in the halt feed
Why it ran
News and SEC filings for RADX published between the previous session's close and the first minute RADX traded 20% above it, at 6:23 a.m. ET, newest first, from the same feeds the replay shows.
No news found before the move.
How it traded
| Time (ET) | What happened |
|---|---|
| 6:23 a.m. | First trade 20% above the previous close of 2.26 |
| 6:23 a.m. | Pre-market high, 2.98 |
| 6:23 a.m. | High of the day to the close, 2.98 |
| 9:30 a.m. | The open: 2.46, up 8.8% from the previous close |
| 3:59 p.m. | Last trade before the 4:00 p.m. close, 2.40, 19.5% 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: 85,797 shares before the 9:30 a.m. open (46%), 9,837 in the first 30 minutes (5%), and 88,936 in the rest of the day to 8 p.m. (48%).
Halts
The exchange's halt feed shows no halts for RADX that day.
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 RADX on August 28, 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.