Hindsight Markets Small-cap stocks on September 18, 2026

PAAI on September 18, 2026: why it ran

Published October 9, 2026 · By Hindsight Markets

On September 18, 2026, PAAI opened down 12.6% from the previous close of 3.33 and reached 5.89 at 9:00 a.m. ET. The exchange halted it 10 times.

Previous close: 3.33
Open, 9:30 a.m.: 2.91
Gap at the open: down 12.6%
Pre-market high: 5.89 at 9:00 a.m.
High, 4 a.m. to 4 p.m.: 5.89 at 9:00 a.m.
Low, 4 a.m. to 4 p.m.: 1.30
After-hours high, 4 p.m. to 8 p.m.: 1.80 at 4:59 p.m.
Last trade before 4:00 p.m.: 1.49
Volume: 20.46 million
Relative volume: 29.1x
Float: 12.83 million shares, from filings as of September 18, 2026
Shares outstanding: 47.61 million
Halts: 10

PAAI on September 18, 2026, one-minute bars in New York time. Shaded: before the 9:30 a.m. open and after the 4:00 p.m. close. Bands: halts from the exchange's feed. Dotted line: the previous close.

Replay PAAI's day

It starts at 11:20 a.m. ET with the real Level 2, time and sales and chart, from the same feed the replay plays, stops at 11:23 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: pre-market
Catalyst: news (day 2)
Halted 10 times
Faded from the top
Ask wall pulled

The day before

On September 17, PAAI ran from $0.92 to a high of $3.47. The official close was $3.33.

The news came after the close. At 5:45 p.m. Business Wire ran: “Paradium.AI Signs 10-Year Strategic Platform Agreement with Roundtable (Nasdaq: RTB)”.

At 3:04 a.m. on the 18th the stock was halted (news pending). The halt lasted until 9:00 a.m.

9:00 a.m.: the reopen

At 6:04 a.m. the company filed an 8-K. The stock was still halted, so nothing traded on it. Trading resumed at 9:00 a.m., half an hour before the open. A 43,897-share print went through at $3.31 at 9:00:00, just under the $3.33 close.

Stop It's 9:00 a.m. PAAI's 9:00 bar opens at $3.47 as it comes out of its news halt. It closed yesterday at $3.33. The regular session is 30 minutes away. Would you buy here?

Press play: the real Level 2, time and sales and chart stop at 9:00 a.m. ET for your call, then show what happened. The clip starts at 8:57 a.m. ET.

Here's what happened. The 9:00 minute went from $3.47 to $5.89, the high so far, and closed at $5.44. More than a million shares traded in that one minute. In the next minute it traded as low as $4.10.

The tops stepped down after that. The 9:01 minute reached $5.52. The 9:02 minute reached $5.20. By 9:13 it was down to $2.81. Pre-market volume was 9.81 million shares, more than the 8.90 million that traded in the whole regular session.

The open: $2.91 and a string of halts

It opened at $2.91, 13% below the $3.33 previous close. The first print was 157,809 shares at $2.91.

At 9:30:58 it was halted on a volatility pause. Halts then came again at 9:36, 9:47 and 9:59. The reopen prints went from $3.10 at 9:35:58 to $2.64, $2.17 and $1.71 at 10:04:30.

By the end of the 10:20 minute, more shares had traded than exist in the whole float (12.83 million).

The wall at $3.40

From 9:30:01 on, the book showed a large offer at exactly $3.40. That was above the open, and above everything that had traded since. At 10:13 it peaked at 131,033 shares, about 1% of the float. The stock was halted at the time; its last trade was $2.19.

It hit $1.71 at 10:04, then chopped between about $1.61 and $2.48 into the late morning. It reached $1.61 at 11:24.

Stop It's 11:30. PAAI is at $1.86, up from the $1.61 low at 11:24. Stock has been offered at $3.40 since the open, up to 131,033 shares at the peak. It was at $5.89 this morning. Would you buy here?

Press play: the real Level 2, time and sales and chart stop at 11:30 a.m. ET for your call, then show what happened. The clip starts at 11:27 a.m. ET.

Here's what happened. It pushed to $2.05 by 11:31, and the 11:34 minute closed at $2.18. At 11:34 it was halted again. It reopened at 11:39:44. One second later, at 11:39:45, the $3.40 wall was pulled.

A 5,000-share buy at 11:39:45 showed $2.20 on screen with 3,518 shares and averaged $2.20, a $15 difference. After the reopen it went to $2.33 at 11:53. By 12:22 it was back at $1.84.

The rest of the day

It was $1.65 at 1:59 p.m. and $1.51 at 2:11. A bid wall of 120,061 shares built at $1.43 by 2:44 and was pulled at 2:52. The low of the day was $1.30 at 3:10 p.m.

It bounced into the bell and closed at $1.49, 75% under the $5.89 high. That high came before the bell, at 9:00 a.m., and was 102% above the $2.91 open.

By the close, 18.70 million shares had traded (pre-market plus the regular session): the float changed hands about 1.5 times. Regular-session volume alone was 8.90 million.

After hours

After hours it dropped to $1.34 at 4:17 p.m. Then it ran, and in the 4:59 p.m. minute it hit $1.80, up 34% from that low. Another 1.76 million shares traded after the bell.

At 5:04 p.m. the company filed another 8-K. In the 5:04 minute the stock traded between $1.59 and $1.72.

What to take from it

Day two's high was bigger than day one's. Day one's high was $3.47 and it closed at $3.33. Day two reached $5.89 before the bell.
The move was gone by the close. It opened at $2.91, 13% below the previous close, and closed at $1.49, 75% under the high.
After the top, the early pushes stopped lower. $5.89 at 9:00 a.m., then $5.52 and $5.20 in the next two minutes. After the 9:30 open the stock never got back above $3.40.

Open this recap on its own page

Why it ran

News and SEC filings for PAAI published between the previous session's close and the first minute PAAI traded 20% above it, at 9:00 a.m. ET, newest first, from the same feeds the replay shows.

6:04 a.m. ET · 8-K filed with the SEC

8-K
September 17, 2026, 5:45 p.m. ET · Business Wire

Paradium.AI Signs 10-Year Strategic Platform Agreement with Roundtable (Nasdaq: RTB)

News via Stock News API

How it traded

Time (ET)	What happened	Watch it
Sep 17, 5:45 p.m.	News (Business Wire): Paradium.AI Signs 10-Year Strategic Platform Agreement with Roundtable (Nasdaq: RTB)
3:04 a.m.	Halted: News pending. Trading resumes at 9:00 a.m.
6:04 a.m.	SEC filing 8-K: 8-K
9:00 a.m.	First trade 20% above the previous close of 3.33
9:00 a.m.	Pre-market high, 5.89
9:00 a.m.	High of the day to the close, 5.89
9:30 a.m.	The open: 2.91, down 12.6% from the previous close
9:30 a.m.	Halted: LULD pause (limit up-limit down). Trading resumes at 9:35 a.m.
9:36 a.m.	Halted: LULD pause (limit up-limit down). Trading resumes at 9:46 a.m.
9:47 a.m.	Halted: LULD pause (limit up-limit down). Trading resumes at 9:57 a.m.
9:59 a.m.	Halted: LULD pause (limit up-limit down). Trading resumes at 10:04 a.m.
10:04 a.m.	Halted: LULD pause (limit up-limit down). Trading resumes at 10:09 a.m.
10:10 a.m.	Halted: LULD pause (limit up-limit down). Trading resumes at 10:20 a.m.
10:20 a.m.	Volume since 4:00 a.m. passes the whole float, 12.83 million shares
10:21 a.m.	Halted: LULD pause (limit up-limit down). Trading resumes at 10:26 a.m.
10:28 a.m.	Halted: LULD pause (limit up-limit down). Trading resumes at 10:33 a.m.
11:34 a.m.	Halted: LULD pause (limit up-limit down). Trading resumes at 11:39 a.m.
3:59 p.m.	Last trade before the 4:00 p.m. close, 1.49, 74.7% 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 2 hours 55 minutes after the latest SEC filing before it (8-K, 6:04 a.m.).
Volume, from the one-minute bars: 9.81 million shares before the 9:30 a.m. open (48%), 2.33 million in the first 30 minutes (11%), and 8.33 million in the rest of the day to 8 p.m. (41%).
Float rotation, the volume since 4 a.m. against the float of 12.83 million shares: past it once at 10:20 a.m.
The halt at 3:04 a.m.: then up 20.7% over the next 5 minutes.
The halt at 9:30 a.m.: down 2.5% in the 5 minutes into it, reopened at 3.10, up 0.3% from the last trade before it, then down 10.0% over the next 5 minutes.
The halt at 9:36 a.m.: down 9.7% in the 5 minutes into it, reopened at 2.78, down 0.4% from the last trade before it, then down 15.8% over the next 5 minutes.
The halt at 9:47 a.m.: down 16.1% in the 5 minutes into it, reopened at 2.17, down 7.3% from the last trade before it, then down 15.2% over the next 5 minutes.
The halt at 9:59 a.m.: down 21.4% in the 5 minutes into it, reopened at 1.71, down 7.1% from the last trade before it.
The halt at 10:04 a.m.: up 2.2% in the 5 minutes into it, reopened at 1.99, up 5.9% from the last trade before it, then up 10.1% over the next 5 minutes.
The halt at 10:10 a.m.: up 16.5% in the 5 minutes into it, reopened at 2.40, up 9.6% from the last trade before it, then down 12.5% over the next 5 minutes.
The halt at 10:21 a.m.: down 4.1% in the 5 minutes into it, reopened at 2.09, down 0.5% from the last trade before it, then up 7.2% over the next 5 minutes.
The halt at 10:28 a.m.: up 6.7% in the 5 minutes into it, reopened at 2.31, up 3.1% from the last trade before it, then down 6.5% over the next 5 minutes.
The halt at 11:34 a.m.: up 17.2% in the 5 minutes into it, reopened at 2.19, up 0.5% from the last trade before it, then down 5.9% over the next 5 minutes.
Other days PAAI met the small-cap rule in our recaps: 2, the latest on September 22, 2026.

Halts

Halted	Resumed	Length	Reason in the feed
3:04 a.m.	9:00 a.m.	355 min 7 s	News pending
9:30 a.m.	9:35 a.m.	5 min 0 s	LULD pause (limit up-limit down)
9:36 a.m.	9:46 a.m.	10 min 0 s	LULD pause (limit up-limit down)
9:47 a.m.	9:57 a.m.	10 min 0 s	LULD pause (limit up-limit down)
9:59 a.m.	10:04 a.m.	5 min 0 s	LULD pause (limit up-limit down)
10:04 a.m.	10:09 a.m.	5 min 0 s	LULD pause (limit up-limit down)
10:10 a.m.	10:20 a.m.	10 min 0 s	LULD pause (limit up-limit down)
10:21 a.m.	10:26 a.m.	5 min 0 s	LULD pause (limit up-limit down)
10:28 a.m.	10:33 a.m.	5 min 0 s	LULD pause (limit up-limit down)
11:34 a.m.	11:39 a.m.	5 min 0 s	LULD pause (limit up-limit down)

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 PAAI on September 18, 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.

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