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Hindsight Markets Recaps Small-cap stocks on August 19, 2026

ZSTK, August 19: news at 9:20, a fade to $1.51, four halts, and $12.40

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ZSTK opened up 17% after news, ran to $12.40 through four halts, then gave back most of the run by the close.

News via Stock News API

NewsNews$12.40$1.974 a.m.9:30noon4 p.m.8 p.m.
ZSTK on August 19, 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.

News, then a fade

The news did not hold at first. At 9:20 a.m. ZeroStack announced a $1.0 billion token contribution. ZSTK opened at $2.30 and touched $2.68 at 9:32. By 9:43 it was down to $1.51, below the $1.97 prior close.

At 10:37 it started moving again from $1.95.

Stop It's 10:42. ZSTK is at $2.68. It was $1.95 five minutes ago and is up from $1.51 at the low. Would you buy here?

Press play: the real Level 2, tape and chart run from 10:39 a.m. and stop at 10:42 a.m. ET for your call.

Four halts, each higher

Here, every halt reopened higher. Halt #1 at 10:42:53 froze it at $2.74. It reopened at 11:24:09 at $4.08, 49% higher.

Halt #2 at 11:24:25 froze it at $4.90. It reopened 22% higher at $6.00 on a 124K-share print. Two more halts followed. The last reopened at 12:00:47 at $9.93.

Stop It's 12:07. ZSTK is at $10.99. It reopened from the last halt at $9.93 and its high so far is $11.84. Would you buy here?

Press play: the real Level 2, tape and chart run from 12:04 p.m. and stop at 12:07 p.m. ET for your call.

The top and the close

Here's what happened. That minute it hit $12.40, the high of the day.

It faded all afternoon and closed at $4.88, 61% below the high.

What to take from it: On ZSTK, the morning news faded first, and the real run came an hour later through four halts.

Replay ZSTK's day

It starts at 10:39 a.m. ET with the real Level 2, time and sales and chart, from the same feed the replay plays, stops at 10:42 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, gave some back. It gapped up 16.8% to $2.30 at the open, ran from the open to the high of $12.40 in 157 minutes through 4 halts, then gave back 74% of that move by 4:00 p.m., trading at $4.88, still above the open.

Time (ET)What happenedWatch it
Aug 18, 5:34 p.m.News (Newsfile Corp): ZeroStack Announces Completion of Continuance to Texas
9:20 a.m.News (Newsfile Corp): ZeroStack Announces US$1.0 Billion Strategic Contribution of Memecore ($M) Tokens at US$25.19 Per Share
9:21 a.m.First trade 20% above the previous close of $1.97
9:21 a.m.Pre-market high, $2.57
9:30 a.m.The open: $2.30, up 16.8% from the previous close
12:07 p.m.High of the day to the close, $12.40
3:59 p.m.Last trade before the 4:00 p.m. close, $4.88, 60.6% 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
$1.97
Open, 9:30 a.m.
$2.30
Gap at the open
+16.8%
Pre-market high
$2.57 at 9:21 a.m.
High, 4 a.m. to 4 p.m.
$12.40 at 12:07 p.m.
Low, 4 a.m. to 4 p.m.
$1.51
Close, 4 p.m.
$4.88
Change at 4 p.m.
+147.7%
After-hours high, 4 p.m. to 8 p.m.
$5.42 at 4:01 p.m.
Volume, 4 a.m. to 4 p.m.
11.09 million
Volume after hours, 4 p.m. to 8 p.m.
479,191
Relative volume by 8 p.m.
n/m
Float
17.48 million shares, from filings as of August 19, 2026
Shares outstanding
17.49 million
  • From news to the move: the first trade 20% above the previous close came 1 minute after the latest news item before it (Newsfile Corp, 9:20 a.m.).
  • Volume, from the one-minute bars: 227,165 shares before the 9:30 a.m. open (2%), 228,523 in the first 30 minutes (2%), and 11.11 million in the rest of the day to 8 p.m. (96%).
  • In our recaps, this is the only day ZSTK met the small-cap rule.

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 (4)
HaltedResumedLengthThe 5 minutes into itReopened at, against the last tradeThe 5 minutes afterReason in the feedWatch it
10:42 a.m.11:24 a.m.41 min 16 sup 37.7%$4.08, up 48.9%LULD pause (limit up-limit down)
11:24 a.m.11:44 a.m.20 min 19 sup 78.8%$6.00, up 22.4%up 20.0%LULD pause (limit up-limit down)
11:45 a.m.11:50 a.m.5 min 0 sup 46.9%$7.21, up 0.1%LULD pause (limit up-limit down)
11:50 a.m.12:00 p.m.10 min 14 sup 20.1%$9.93, up 14.8%up 3.7%LULD pause (limit up-limit down)

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 ZSTK on August 19, 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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