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Hindsight Markets Recaps Small-cap stocks on September 24, 2026

PFSA, September 24: a 7:30 headline, $4.55 before the bell, and a fade to $3.02

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PFSA opened up 71% after news, ran to $4.19, then fell below its open by the close.

News via Stock News API

News$4.55$2.054 a.m.9:30noon4 p.m.8 p.m.
PFSA on September 24, 2026, one-minute bars, New York time. Bands: halts. Flags: the news or filing before the move. Dotted line: the previous close. Shaded: before the 9:30 a.m. open and after the 4:00 p.m. close.

What happened

Draft for review. Not published.

The 7:30 news

A 7:30 headline on progress toward a CE Mark set it off. The whole float traded in that one minute. By 7:31 it hit $4.49.

Stop It's 8:07. PFSA is at $4.23, back near the pre-market high so far of $4.49 from 7:31. It ran from $2.75 at 7:40 to here. Would you buy here?

Press play: the real Level 2, tape and chart run from 8:04 a.m. and stop at 8:07 a.m. ET for your call.

A buy sweep made $4.55 at 8:07, the day's high. It was at $4.00 within three minutes.

A weaker open

It opened far below that high, at $3.51.

Stop It's 9:34. PFSA is at $3.56. The open was $3.51, and it dipped to $3.21 a minute ago. Would you buy here?

Press play: the real Level 2, tape and chart run from 9:31 a.m. and stop at 9:34 a.m. ET for your call.

It ran to $4.19 at 9:35, then fell to $2.83 by 10:03.

Stop It's 10:35. PFSA is at $2.84, below the $3.51 open and under $3.00 after trading around $3 earlier. Would you buy here?

Press play: the real Level 2, tape and chart run from 10:32 a.m. and stop at 10:35 a.m. ET for your call.

It kept sliding to $2.40 at 10:55.

Walls and the close

Ask walls of about 20% of the float kept appearing above the price and being pulled. The last, at $3.07, went at 3:45:37. It closed at $3.02.

What to take from it: Every push after the 8:07 high stopped lower.

Replay PFSA's day

It starts at 7:26 a.m. ET with the real Level 2, time and sales and chart, from the same feed the replay plays, stops at 7:29 a.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 and fade. It gapped up 71.2% to $3.51 at the open, ran from the open to the high of $4.19 in 5 minutes, then gave back 172% of that move by 4:00 p.m., trading at $3.02, below the open.

Time (ET)What happenedWatch it
7:30 a.m.News (GlobeNewsWire): Profusa Announces Significant Progress Towards Lumee® Oxygen Platform CE Mark with ISO 13485 Certification Expected in Early October
7:30 a.m.First trade 20% above the previous close of $2.05
7:30 a.m.Volume since 4:00 a.m. passes the whole float, 515,010 shares
8:07 a.m.Pre-market high, $4.55
8:07 a.m.High of the day to the close, $4.55
9:30 a.m.The open: $3.51, up 71.2% from the previous close
3:59 p.m.Last trade before the 4:00 p.m. close, $3.02, 33.6% 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
$2.05
Open, 9:30 a.m.
$3.51
Gap at the open
+71.2%
Pre-market high
$4.55 at 8:07 a.m.
High, 4 a.m. to 4 p.m.
$4.55 at 8:07 a.m.
Low, 4 a.m. to 4 p.m.
$1.94
Close, 4 p.m.
$3.02
Change at 4 p.m.
+47.3%
After-hours high, 4 p.m. to 8 p.m.
$3.10 at 5:52 p.m.
Volume, 4 a.m. to 4 p.m.
35.37 million
Volume after hours, 4 p.m. to 8 p.m.
569,744
Relative volume by 8 p.m.
120.1×
Float
515,010 shares, from filings as of September 24, 2026
Shares outstanding
605,647
  • 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, 7:30 a.m.).
  • Volume, from the one-minute bars: 21.24 million shares before the 9:30 a.m. open (59%), 5.35 million in the first 30 minutes (15%), and 9.35 million in the rest of the day to 8 p.m. (26%).
  • Float rotation, the volume since 4 a.m. against the float of 515,010 shares: past it once at 7:30 a.m., twice at 7:31 a.m., three times at 7:32 a.m.
  • Other days PFSA met the small-cap rule in our recaps: 5, the latest on October 22, 2026.

On the day's lists: the pre-market gappers, gainers, intraday runners. It is here because it met the small-cap rule on the pre-market gappers: price $2 to $20, up 10% or more, relative volume 5× or more, float under 20 million shares, 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 PFSA 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 PFSA on September 24, 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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