Hindsight Markets Recaps Small-cap stocks on September 16, 2026
TPST, September 16: the $1.20 wall, a flush to $0.97, and $1.48
TPST opened up 43% after news, ran to $1.48, then gave back most of the run by the close.
News via Stock News API
What happened
Draft for review. Not published.
The morning wall at $1.20
On this day, a big seller capped the morning. News after the prior close lifted TPST to a $1.08 open, up 43%. A 215K-share offer sat at $1.20.
Stop It's 10:04. TPST is at $1.18. Just above, a big block of stock is offered at $1.20. Would you buy here?
Press play: the real Level 2, tape and chart run from 10:01 a.m. and stop at 10:04 a.m. ET for your call.
Buyers ate the wall by 10:06:30. Within a minute, a sell sweep pushed it back to $1.15.
The bid that vanished
By late morning the big order was on the buy side. A bid of up to 134K shares sat at $1.02.
Stop It's 11:43. TPST is at $1.03. A bid wall has sat at $1.02 since 11:18, up to 134,101 shares. Would you buy here?
Press play: the real Level 2, tape and chart run from 11:40 a.m. and stop at 11:43 a.m. ET for your call.
It was pulled at 11:44:04. A few minutes later the stock flushed to $0.97, its low after the open.
Four walls in two minutes
In the afternoon, four ask walls stood between $1.20 and $1.30.
Stop It's 2:14. TPST is at $1.15. Large ask walls are stacked above at $1.20, $1.24, $1.25 and $1.30. Would you buy here?
Press play: the real Level 2, tape and chart run from 2:11 p.m. and stop at 2:14 p.m. ET for your call.
An 85K-share buy sweep started the run, and all four walls broke by 2:16:30. At 2:19 it hit $1.48, the high of the day, up 96%. It faded to close at $1.21.
What to take from it: Here, one wall breaking alone faded fast; four breaking together ran to the high.
Replay TPST's day
It starts at 2:00 p.m. ET with the real Level 2, time and sales and chart, from the same feed the replay plays, stops at 2:03 p.m. and asks what you would do. Or press Play on any moment in How it traded.
The details
How it traded, step by step
Gap, run, gave some back. It gapped up 43.0% to $1.08 at the open, ran from the open to the high of $1.48 in 289 minutes, then gave back 69% of that move by 4:00 p.m., trading at $1.21, still above the open.
| Time (ET) | What happened | Watch it |
|---|---|---|
| Sep 15, 4:05 p.m. | News (GlobeNewsWire): Tempest Secures Exclusive Option to License Clinical-Stage CD7-Targeted Lentiviral In Vivo CAR-T Platform | |
| 4:00 a.m. | First trade 20% above the previous close of $0.7554 | |
| 6:35 a.m. | Pre-market high, $1.34 | |
| 8:01 a.m. | Volume since 4:00 a.m. passes the whole float, 8.33 million shares | |
| 9:30 a.m. | The open: $1.08, up 43.0% from the previous close | |
| 2:19 p.m. | High of the day to the close, $1.48 | |
| 3:59 p.m. | Last trade before the 4:00 p.m. close, $1.21, 18.6% below the high |
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
- $0.7554
- Open, 9:30 a.m.
- $1.08
- Gap at the open
- +43.0%
- Pre-market high
- $1.34 at 6:35 a.m.
- High, 4 a.m. to 4 p.m.
- $1.48 at 2:19 p.m.
- Low, 4 a.m. to 4 p.m.
- $0.9674
- Close, 4 p.m.
- $1.21
- Change at 4 p.m.
- +59.5%
- After-hours high, 4 p.m. to 8 p.m.
- $1.32 at 4:43 p.m.
- Volume, 4 a.m. to 4 p.m.
- 28.07 million
- Volume after hours, 4 p.m. to 8 p.m.
- 1.98 million
- Relative volume by 8 p.m.
- 43.3×
- Float
- 8.33 million shares, from filings as of September 16, 2026
- Shares outstanding
- 16.54 million
- From news to the move: the first trade 20% above the previous close came 11 hours 55 minutes after the latest news item before it (GlobeNewsWire, Sep 15, 4:05 p.m.).
- Volume, from the one-minute bars: 9.69 million shares before the 9:30 a.m. open (32%), 3.17 million in the first 30 minutes (11%), and 17.20 million in the rest of the day to 8 p.m. (57%).
- Float rotation, the volume since 4 a.m. against the float of 8.33 million shares: past it once at 8:01 a.m., twice at 11:47 a.m., three times at 2:43 p.m.
- Other days TPST met the small-cap rule in our recaps: 1, the latest on September 15, 2026.
On the day's lists: the intraday runners. It is here because it was in play on the intraday runners: up 30% or more on $3 million or more really traded, outside the small-cap rule's price, relative volume or float, 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 TPST 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 TPST on September 16, 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.