Recaps · August 19, 2026

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

• Small cap
• Momentum
• Main move: midday
• Catalyst: news at 9:20 a.m.
• Faded below the previous close
• Halt run
• Halted four times
• Faded into the close

News

Newsfile Corp, the day before at 5:34 p.m.

Float

17.48 million shares

Volume

11.56 million shares

Previous close

$1.97

Open

$2.30 (up 16.8%)

High

$12.40 at 12:07 p.m.

Halts

4 (10:42 a.m. and 11:24 a.m. and 11:45 a.m. and 11:50 a.m.)

Close

$4.88

The day before

On August 18, ZSTK was a quiet stock. It traded between $1.83 and $2.03 on 1,602 shares and closed at $1.97.

At 5:34 p.m. that evening, Newsfile Corp ran: “ZeroStack Announces Completion of Continuance to Texas”.

Pre-market: a thin start, then news at 9:20

The first trade on the 19th was 100 shares at $1.87 at 6:29 a.m. That is below the $1.97 close. The last trades before the news were around $1.85 at 8:35 a.m.

At 9:20 a.m. Newsfile Corp ran: “ZeroStack Announces US$1.0 Billion Strategic Contribution of Memecore ($M) Tokens at US$25.19 Per Share”. The 9:21 candle opened at $2.14 and hit $2.57, the pre-market high. At 9:26 a.m. the company filed an 8-K (a current report).

A total of 227,165 shares traded before the bell, against a float of about 17.5 million.

The open, and a fade below where it started

It opened at $2.30, up 17% from the previous close. At 9:32 it pushed to $2.68, above the pre-market high.

Then it turned. The 9:33 candle fell to $1.86. By 9:43 it hit $1.51, the low so far and about 23% below the $1.97 close. So the pre-market spike had been erased within 13 minutes of the open.

After that it went quiet. From 9:55 to 10:36 it stayed between $1.74 and $2.06. Many minutes had only a handful of shares, and some had no trades at all.

10:37: moving again

At 10:37 it began to move again from $1.95. It was $2.40 by 10:40.

Here's what happened. At 10:42:53 it was halted (a volatility pause) with the last trade at $2.74. The halt lasted until 11:24:09, more than 41 minutes.

It reopened at $4.08, 49% above where it stopped. The reopening print was 40,807 shares.

Three more halts, up to $9.93

The 11:24 candle ran from $4.08 to $4.90. At 11:24:25 it was halted again, with the last trade at $4.90. It reopened at 11:44:44 at $6.00, 22% higher. The reopening print was 123,731 shares, the biggest single trade of the day in the data. The 11:44 candle reached $7.20, and during it a 32,900-share sell order swept down from $6.24 to $5.66 across 33 price levels.

At 11:45:07 it was halted a third time. It reopened at 11:50:07 at $7.21 on a 77,008-share print. That minute was wild. It went as low as $5.90 and closed at $8.65. A 19,160-share sell swept from $7.31 to $6.65, then buy orders swept through $5.91 to $6.85 and $6.96 to $7.71.

At 11:50:33 it was halted a fourth time, and this one lasted about ten minutes. It reopened at 12:00:47 at $9.93, on a 47,346-share print. That is more than three and a half times where the 10:42 halt stopped. The 12:00 candle traded through $10.00 for the first time, to $10.97.

After the last reopen

It went up to $11.66 in the 12:01 minute and $11.84 in the 12:02 minute. Then it dropped to $9.22 in that same 12:02 minute and chopped between roughly $9.73 and $11.45 for a few minutes.

Here's what happened. In the 12:07 minute it ran to $12.40, the high of the day. A 17,806-share buy swept from $11.24 to $11.75 across 49 levels at 12:07:10. That candle closed at $11.51 on 251,481 shares.

Within four minutes it was back at $9.53, at 12:11. It pushed up to $11.40 at 12:13, then fell to $8.36 at 12:18, down 27% from $11.40.

A lower high, and the fade

It came back once more. At 12:25 it pushed to $11.44, a lower high under the $12.40 top.

From there it faded: $9.60 at 12:31, $8.80 at 12:50, $6.23 at 1:40 p.m., and $4.88 at the close. That is above the $1.51 low, but 61% below the high.

By the close, 10.86 million shares had traded, about 62% of the 17.5 million float, and more than 1,000 times its normal volume. It was halted four times.

After hours

After hours it traded between $4.15 and $5.42, with the high at 4:01 p.m. About 479,000 shares changed hands.

At 4:03 p.m., after the close, Benzinga ran: “ZeroStack (ZSTK) Stock Skyrockets Wednesday: What's Driving the Action?”.

What to take from it

• News spikes can fade fast. After the 9:20 headline, ZSTK hit $2.57 in the 9:21 minute, and by 9:43 it was at $1.51, below the previous close. The big run started about an hour later.
• A halt can reopen far above where it stopped. The 10:42 halt stopped at $2.74 and reopened at $4.08. The last one reopened at $9.93.
• Thin books cost real money at some moments. Five-thousand-share buys averaged $1,111 to $1,701 above the screen price at three of the five sampled moments. The other two, at $194 and $46, were much smaller.