Hindsight Markets Small-cap stocks on August 20, 2026
BOSC on August 20, 2026: why it ran
On August 20, 2026, BOSC opened up 10.4% from the previous close of 4.53 and reached 5.11 at 6:15 a.m. ET. The exchange did not halt it.
- Previous close
- 4.53
- Open, 9:30 a.m.
- 5.00
- Gap at the open
- up 10.4%
- Pre-market high
- 5.11 at 6:15 a.m.
- High, 4 a.m. to 4 p.m.
- 5.11 at 6:15 a.m.
- Low, 4 a.m. to 4 p.m.
- 4.50
- After-hours high, 4 p.m. to 8 p.m.
- 4.70 at 6:56 p.m.
- Last trade before 4:00 p.m.
- 4.66
- Volume
- 137,734
- Relative volume
- 9.6x
- Float
- 6.90 million shares, from filings as of August 20, 2026
- Shares outstanding
- 7.03 million
- Halts
- none in the halt feed
Why it ran
News and SEC filings for BOSC published between the previous session's close and the open, newest first, from the same feeds the replay shows.
-
BOS Reports Second Quarter and First Half 2026 Financial Results
News via Stock News API
How it traded
Gap and fade. It gapped up 10.4% to 5.00 at the open and traded below the open by 4:00 p.m., at 4.66.
| Time (ET) | What happened |
|---|---|
| 6:15 a.m. | Pre-market high, 5.11 |
| 6:15 a.m. | High of the day to the close, 5.11 |
| 7:30 a.m. | News (GlobeNewsWire): BOS Reports Second Quarter and First Half 2026 Financial Results |
| 9:30 a.m. | The open: 5.00, up 10.4% from the previous close |
| 3:59 p.m. | Last trade before the 4:00 p.m. close, 4.66, 8.8% 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: 35,813 shares before the 9:30 a.m. open (26%), 49,416 in the first 30 minutes (36%), and 52,505 in the rest of the day to 8 p.m. (38%).
Halts
The exchange's halt feed shows no halts for BOSC 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 BOSC on August 20, 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.