Hindsight Markets Small-cap stocks on September 29, 2026
SSTI on September 29, 2026: why it ran
On September 29, 2026, SSTI opened up 51.7% from the previous close of 5.47 and reached 8.75 at 7:35 a.m. ET. The exchange did not halt it.
- Previous close
- 5.47
- Open, 9:30 a.m.
- 8.30
- Gap at the open
- up 51.7%
- Pre-market high
- 8.75 at 7:35 a.m.
- High, 4 a.m. to 4 p.m.
- 8.75 at 7:35 a.m.
- Low, 4 a.m. to 4 p.m.
- 5.50
- After-hours high, 4 p.m. to 8 p.m.
- 8.50 at 4:02 p.m.
- Last trade before 4:00 p.m.
- 8.22
- Volume
- 2.70 million
- Relative volume
- 62.6x
- Float
- 9.52 million shares, from filings as of September 29, 2026
- Shares outstanding
- 13.16 million
- Halts
- none in the halt feed
Replay SSTI's day
It starts at 7:31 a.m. ET with the real Level 2, time and sales and chart, from the same feed the replay plays, stops at 7:34 a.m. and asks what you would do. Or press Play on any moment in How it traded.
The day, step by step
- Small cap
- Momentum
- Main move: one pre-market minute
- Catalyst: acquisition news
- Gap and flat
- Bid walls
- No halts
- Low float turnover
Pre-market: one minute, $5.50 to $8.75
The previous close was $5.47. Nothing traded in the bars until 7:35 a.m.
At 7:35 a.m. GlobeNewsWire ran: “SoundThinking to be Acquired by Transom Capital Group”. In that same minute the stock traded from $5.50 to $8.75, up 60% from the previous close. $8.75 was the high so far. It was set before the bell, at 7:35 a.m. The minute closed at $8.06. 77,419 shares traded in it.
The 7:36 candle dipped to $7.91, then closed at $8.33. By 7:42 the price was near $8.07 and the swings were over. 1.19 million shares traded before the bell.
At 7:45 a.m. the company filed an 8-K (a current report). At 8:49 a.m. a tender-offer filing (SC TO-C) followed. From 7:42 to 9:29 the stock stayed between $8.06 and $8.34.
Below the price, a bid wall appeared at $8.01 at 9:09. It peaked at 56,666 shares at 9:23, about 0.6% of the float. A bid wall is a large order to buy sitting at one price.
The open
SSTI opened at $8.30, up 52% from the previous close. At 9:30:00 a single print of 24,430 shares traded at $8.30 on Nasdaq.
Stop It's 9:30. SSTI is opening at $8.30, up 52% from the $5.47 previous close, after a buyout headline at 7:35. Would you buy the open?
Press play: the real Level 2, time and sales and chart stop at 9:30 a.m. ET for your call, then show what happened. The clip starts at 9:27 a.m. ET.
Here's what happened. The stock pushed up to $8.43 at 9:31. That was its highest price of the regular session, 13 cents above the open. By 9:36 it was back to $8.30. At 9:43:28 one buy order of 12,836 shares swept through three price levels, $8.31 to $8.33, within 50 milliseconds. The price did not follow through. By 9:46 it was at $8.30 again.
The morning: a wall at $8.30
At 10:05 the WSJ ran: “SoundThinking to Be Taken Private by Transom Capital Group”. The 10:05 bar traded at $8.30 and nothing else.
At 10:08 a bid wall showed up at $8.30. It peaked at 59,479 shares at 10:13, about 0.6% of the float.
Stop It's 10:24. SSTI is at $8.30. A bid wall that peaked near 59,000 shares has been at $8.30 since 10:08. Would you buy here?
Press play: the real Level 2, time and sales and chart stop at 10:24 a.m. ET for your call, then show what happened. The clip starts at 10:21 a.m. ET.
Here's what happened. At 10:24:40, 27,958 shares traded at exactly $8.30 in about 0.3 seconds. At 10:24:41 the wall was pulled. The minute's low was $8.28 and it closed at $8.29. 45,218 shares traded in that minute. By 10:38 the price was $8.26.
At 11:23 a.m. GlobeNewsWire ran a shareholder-investigation notice naming SoundThinking, and at 12:05 p.m. Business Wire ran another. The price at those times was $8.26 and $8.25. Many minutes traded under 1,000 shares.
Afternoon and close
The drift stayed small. It was $8.20 at 12:58 p.m. and $8.25 at 2:00. The low after the open was $8.18 at 3:24 p.m., 12 cents under the open.
At 3:56 a bid wall appeared at $8.19. It peaked at 51,686 shares, about 0.5% of the float, and was pulled at 3:59:56. The 3:59 bar closed at $8.22, 6% under the $8.75 high of the day. For the regular session, 1.49 million shares traded.
For the whole day, 2.70 million shares traded, about 0.3 of the float (9.52 million shares). That is about 63 times its normal volume, but normal is tiny: about 43,000 shares a day. No halts.
After hours
Trading was thin after the close. 21,382 shares traded between 4:00 and 8:00 p.m., and many minutes had a handful of shares.
At 5:14 p.m. the company filed an SC 14D9-C (tender offer communications). At 7:12 p.m. PRNewsWire ran: “SSTI SHAREHOLDER ALERT: ADEMI LLP INVESTIGATES WHETHER BUYOUT FAIRLY VALUES SOUTHTHINKING, INC.”.
What to take from it
- One pre-market minute held the whole move. In the 7:35 minute, the same minute as the buyout headline, SSTI traded from $5.50 to $8.75. After 7:42 it stayed between $8.06 and $8.34 until the open.
- After the open the range was narrow. The regular session ranged from $8.18 to $8.43, a 25-cent spread, with the high at 9:31.
- A wall on the screen can be pulled without warning. The $8.30 bid wall was pulled at 10:24:41, and that minute's low was $8.28.
Why it ran
News and SEC filings for SSTI published between the previous session's close and the first minute SSTI traded 20% above it, at 7:35 a.m. ET, newest first, from the same feeds the replay shows.
-
SoundThinking to be Acquired by Transom Capital Group
News via Stock News API
How it traded
Gap and fade. It gapped up 51.7% to 8.30 at the open and traded below the open by 4:00 p.m., at 8.22.
| Time (ET) | What happened | Watch it |
|---|---|---|
| 7:35 a.m. | News (GlobeNewsWire): SoundThinking to be Acquired by Transom Capital Group | |
| 7:35 a.m. | First trade 20% above the previous close of 5.47 | |
| 7:35 a.m. | Pre-market high, 8.75 | |
| 7:35 a.m. | High of the day to the close, 8.75 | |
| 9:30 a.m. | The open: 8.30, up 51.7% from the previous close | |
| 3:59 p.m. | Last trade before the 4:00 p.m. close, 8.22, 6.1% 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
- From news to the move: the first trade 20% above the previous close came less than a minute after the latest news item before it (GlobeNewsWire, 7:35 a.m.).
- Volume, from the one-minute bars: 1.19 million shares before the 9:30 a.m. open (44%), 357,399 in the first 30 minutes (13%), and 1.16 million in the rest of the day to 8 p.m. (43%).
- In our recaps, this is the only day SSTI met the small-cap rule.
Halts
The exchange's halt feed shows no halts for SSTI 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 SSTI on September 29, 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.