Hindsight Markets Small-cap stocks on August 19, 2026
BIVI on August 19, 2026: why it ran
On August 19, 2026, BIVI opened up 34.8% from the previous close of 0.9644 and reached 2.15 at 4:01 a.m. ET. The exchange did not halt it.
- Previous close
- 0.9644
- Open, 9:30 a.m.
- 1.30
- Gap at the open
- up 34.8%
- Pre-market high
- 2.15 at 4:01 a.m.
- High, 4 a.m. to 4 p.m.
- 2.15 at 4:01 a.m.
- Low, 4 a.m. to 4 p.m.
- 1.14
- After-hours high, 4 p.m. to 8 p.m.
- 1.96 at 4:31 p.m.
- Last trade before 4:00 p.m.
- 1.33
- Volume
- 21.79 million
- Relative volume
- 6.7x
- Float
- 8.20 million shares, from filings as of August 19, 2026
- Shares outstanding
- 8.45 million
- Halts
- none in the halt feed
Why it ran
News and SEC filings for BIVI published between the previous session's close and the first minute BIVI 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, run and fade. It gapped up 34.8% to 1.30 at the open, ran from the open to the high of 1.44 in 53 minutes, then gave back 79% of that move by 4:00 p.m., trading at 1.33.
| Time (ET) | What happened |
|---|---|
| 4:00 a.m. | First trade 20% above the previous close of 0.9644 |
| 4:01 a.m. | Pre-market high, 2.15 |
| 4:01 a.m. | High of the day to the close, 2.15 |
| 7:42 a.m. | Volume since 4:00 a.m. passes the whole float, 8.20 million shares |
| 9:30 a.m. | The open: 1.30, up 34.8% from the previous close |
| 3:59 p.m. | Last trade before the 4:00 p.m. close, 1.33, 38.1% 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: 9.73 million shares before the 9:30 a.m. open (45%), 1.22 million in the first 30 minutes (6%), and 10.84 million in the rest of the day to 8 p.m. (50%).
- Float rotation, the volume since 4 a.m. against the float of 8.20 million shares: past it once at 7:42 a.m., twice at 4:23 p.m.
Halts
The exchange's halt feed shows no halts for BIVI 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 BIVI on August 19, 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.