Hindsight Markets Small-cap stocks on September 28, 2026
BYSI on September 28, 2026: why it ran
On September 28, 2026, BYSI opened down 3.4% from the previous close of 0.7772 and reached 1.14 at 3:54 p.m. ET. The exchange did not halt it.
- Previous close
- 0.7772
- Open, 9:30 a.m.
- 0.7510
- Gap at the open
- down 3.4%
- Pre-market high
- 0.7776 at 8:45 a.m.
- High, 4 a.m. to 4 p.m.
- 1.14 at 3:54 p.m.
- Low, 4 a.m. to 4 p.m.
- 0.7510
- After-hours high, 4 p.m. to 8 p.m.
- 1.31 at 4:02 p.m.
- Last trade before 4:00 p.m.
- 1.13
- Volume
- 3.47 million
- Relative volume
- 128.9x
- Float
- 36.64 million shares, from filings as of September 28, 2026
- Shares outstanding
- 41.12 million
- Halts
- none in the halt feed
Why it ran
News and SEC filings for BYSI published between the previous session's close and the first minute BYSI traded 20% above it, at 12:35 p.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 3.4% at 0.7510, then ran from the open to the high of 1.14 in 384 minutes.
| Time (ET) | What happened |
|---|---|
| 8:45 a.m. | Pre-market high, 0.7776 |
| 9:30 a.m. | The open: 0.7510, down 3.4% from the previous close |
| 12:35 p.m. | First trade 20% above the previous close of 0.7772 |
| 3:54 p.m. | High of the day to the close, 1.14 |
| 3:59 p.m. | Last trade before the 4:00 p.m. close, 1.13, 0.9% 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: 1,340 shares before the 9:30 a.m. open (0%), 1,213 in the first 30 minutes (0%), and 3.47 million in the rest of the day to 8 p.m. (100%).
- Other days BYSI met the small-cap rule in our recaps: 1, the latest on August 13, 2026.
Halts
The exchange's halt feed shows no halts for BYSI 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 BYSI on September 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.