Recaps · August 19, 2026

ZNB, August 19: a 7:00 filing, one halt, and $5.03

• Small cap
• Momentum
• Gap, run and fade
• News: 6-K filing
• Bid wall eaten
• Halted once
• Float traded 70x

Float

261,441 shares

Volume

18.20 million shares

Previous close

$2.23

Open

$2.66 (up 19.3%)

High

$5.03 at 4:21 a.m.

Halts

1 (2:55 p.m.)

Close

$2.23

Pre-market: the float traded by 4:09 a.m.

The official previous close was $2.23. On August 18 the stock traded between $2.02 and $2.34 on 45,994 shares. The float is just 261,441 shares, so it doesn't take much volume to move it.

Pre-market trading started at 4:02 a.m. around $2.27. At 4:08 a.m. it traded through $3.00 for the first time. By 4:09 a.m., more shares had traded than exist in the whole float. From $2.38 at 4:08 it ran to $3.45 at 4:09. Then it fell to $2.48 at 4:10.

It climbed again from $2.53 at 4:12 a.m. By the end of the 4:19 minute more than 2.2 million shares had traded, about 8.5 times the float.

The next minute it hit $5.03, the high so far, at 4:21 a.m. Within three minutes it was back at $3.87. 15.66 million shares traded before the bell.

Lower highs, and the $4.20 bid

The slide went on. It fell to $3.33 at 4:35 a.m., 28% below the $4.64 print at 4:31. It bounced back to $4.65 at 4:50 and pushed to $4.80 at 5:07 a.m., a lower high under the $5.03 top.

This is the part a chart doesn't show you. From 5:21 a.m. a large bid sat at exactly $4.20. The bid peaked at 28,161 shares at 5:23 a.m., about 11% of the float. The price sat just above it.

Trading at $4.20 began at 5:24:11. In 5.3 seconds, 22,535 shares traded at exactly $4.20 and the bid was gone. It wasn't pulled. Sellers hit it. The 5:24 minute low was $4.13.

From there the price drifted lower: $3.84 by 5:41, about $3.60 by 6:00. At 6:53 it popped to $4.10 on heavy volume and was back at $3.59 within two minutes.

At 7:00 a.m. the company filed a 6-K (a foreign company's current report). The stock fell to $3.23 within two minutes and kept sliding to $2.58 by 8:07 a.m.

The open and a quiet middle

It opened at $2.66, up 19% from the previous close. It pushed to $2.84 in the 9:32 minute, then slipped to $2.33 by 9:59.

From mid-morning the stock was thin and sat near $2.50. Many minutes traded just a few thousand shares, some a few hundred. Regular-session volume was 2.42 million shares, far less than the 15.66 million traded before the bell.

The afternoon run and the halt

At 2:30 p.m. it woke up from $2.57. Two large buy sweeps came at 2:41 (24,473 shares) and 2:44 (28,335 shares). It reached $3.20 at 2:49 p.m., the high since the open.

Then it reversed. At 2:50:40 a 26,700-share sell swept from $2.94 to $2.76 across 19 levels. The 2:50 candle ran from $3.19 down to $2.72. By 2:54 it was at $2.24.

At 2:55 p.m. it was halted (a volatility pause) with the last trade at $2.16.

It reopened at 3:00 p.m. at $2.26, about 5% above where it stopped. By 3:05 it was back at $2.22.

It chopped around $2.22 until 3:07, when the price fell through. It hit $1.78 at 3:07 p.m., the low of the day, on 80,905 shares in one minute. It was back near $2.00 by 3:13.

The close and after hours

It drifted up into the close: $2.12 by 3:41, a pop to $2.26 in the 3:55 minute, and $2.23 at the close. That is exactly the previous close.

At 3:55 p.m. a large bid appeared at $1.80, well under the price. It peaked at 86,468 shares at 3:57, about 33% of the float.

Over the whole day, 18.20 million shares traded: the float changed hands about 70 times, at about 106 times the stock's normal volume. Of that, 15.66 million traded pre-market, 2.42 million in the regular session and 120,364 after hours.

What to take from it

• After the top, every later push stopped lower. $5.03 at 4:21 a.m.; after the drop to $3.87 at 4:24, the best retry was $4.80 at 5:07 a.m.
• A bid wall can break in seconds. The $4.20 bid held about 28,000 shares and was gone in 5.3 seconds of selling.
• Fills near the extremes cost more than the screen says. At the high and at the halt reopen, the screen showed only 21 and 156 shares at the quoted price.
• The whole gap was gone by the close. ZNB ended at $2.23, the same price as the previous close, 56% below the $5.03 high.