Hindsight Markets Small-cap stocks on September 23, 2026
GCTK on September 23, 2026: why it ran
On September 23, 2026, GCTK opened down 9.7% from the previous close of 2.47 and reached 2.46 at 4:06 a.m. ET. The exchange did not halt it.
- Previous close
- 2.47
- Open, 9:30 a.m.
- 2.23
- Gap at the open
- down 9.7%
- Pre-market high
- 2.46 at 4:06 a.m.
- High, 4 a.m. to 4 p.m.
- 2.46 at 4:06 a.m.
- Low, 4 a.m. to 4 p.m.
- 2.00
- After-hours high, 4 p.m. to 8 p.m.
- 5.46 at 4:45 p.m.
- Last trade before 4:00 p.m.
- 2.02
- Volume
- 16.88 million
- Relative volume
- 262.7x
- Float
- 757,086 shares, from filings as of September 23, 2026
- Shares outstanding
- 798,390
- Halts
- none in the halt feed
Replay GCTK's day
It starts at 12:30 p.m. ET with the real Level 2, time and sales and chart, from the same feed the replay plays, stops at 12:33 p.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: after hours
- News: pre-market headline
- Tiny float
- Lower high
- Faded in regular session
- After-hours runner
Pre-market: thin trading
The previous close was $2.47. The first trades on the 23rd came at 4:03 a.m., at $2.22. That was below the close.
At 4:06 a.m. it printed $2.46, the pre-market high, just under the previous close. It traded at $2.32 at 4:07 and $2.29 at 4:09. Only 4,998 shares traded before the bell, in the whole pre-market.
It then fell to $2.11 at 4:21 a.m., 14% below $2.46. It ran to $2.38 at 4:35 and fell to $2.15 at 4:41. At 4:49 it pushed to $2.42, a lower high under the $2.46 top. After that it mostly sat around $2.16 to $2.34 until the open.
Many minutes had no trades at all. The float is 757,086 shares.
News and filings before the open
At 9:00 a.m. Business Wire ran a headline: “Lōkahi Therapeutics™ and Glucotrack CEO Erik Emerson Provides Strategic Update on LT-100, ai² Platform Growth and Clinical Development Priorities”.
At 9:21 a.m. the company filed an 8-K. At 9:22 it filed a 425. From 9:00 a.m. until the open it traded between $2.21 and $2.28.
The open and the fade
It opened at $2.23, 10% below the previous close. It ran to $2.27 in the 9:32 minute, then drifted down.
At 9:46 the stock dropped to $2.06 on 6,418 shares, the heaviest minute of the morning. It was $2.04 by 9:57 and hit $2.00 at 10:07, the regular-session low so far.
From there until 12:31 it chopped between $2.00 and $2.16. It touched $2.16 at 12:22 and hit $2.00 again at 12:31.
Stop It's 12:32. The price is $2.00. The stock opened at $2.23 and has drifted down most of the day. The low so far is $2.00, set at 10:07. Since then it has chopped between $2.00 and $2.16. It bounced to $2.16 at 12:22, then fell back to $2.00 at 12:31 on 3,280 shares, more than any of the minutes just before it. Volume all day has been thin. Would you buy here?
Press play: the real Level 2, time and sales and chart stop at 12:32 p.m. ET for your call, then show what happened. The clip starts at 12:29 p.m. ET.
It then slid to $2.02 at the close. Regular-session volume was 67,897 shares. Normal volume for this stock is about 64,000 shares a day.
After hours: from $2.03 to $5.46
This is where the day's volume came from. At 4:00 p.m. it traded at $2.03. It stayed between $2.03 and $2.06 until 4:19 p.m.
Then volume exploded. The 4:22 p.m. minute traded 67,585 shares, up to $2.42. The 4:23 minute traded 230,636 and hit $2.99. By 4:25 p.m., more shares had traded than exist in the whole float (757,086).
It kept climbing. It was $3.58 at 4:30, $3.89 at 4:35 and $4.49 at 4:42. At 4:45 p.m. it hit $5.46, the high of the day, up 169% from $2.03 at 4:00. By 4:48, total volume for the day had passed ten times the float.
It could not hold the high. It was $4.14 by 4:54 and a low of $3.77 at 5:02. It bounced to $4.85 at 5:43, then drifted down. By 8 p.m. it was trading around $3.65.
After hours traded 16,804,706 shares. The whole day was 16,877,601, at about 263 times normal volume. Almost all of it came after the close.
What to take from it
- The move can come after the close. GCTK drifted between $2.00 and $2.27 in the regular session. Then 16.8 million shares traded after hours.
- A thin pre-market high tells you little. $2.46 at 4:06 a.m. came on a few hundred shares, and the regular-session high was $2.27.
- The after-hours high did not hold. $5.46 at 4:45 p.m., then a bounce to $4.85 at 5:43 p.m., then back around $3.65 by 8 p.m.
Why it ran
News and SEC filings for GCTK published between the previous session's close and the first minute GCTK traded 20% above it, at 4:23 p.m. ET, newest first, from the same feeds the replay shows.
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425
-
8-K
-
Lōkahi Therapeutics™ and Glucotrack CEO Erik Emerson Provides Strategic Update on LT-100, ai² Platform Growth and Clinical Development Priorities
News via Stock News API
How it traded
| Time (ET) | What happened | Watch it |
|---|---|---|
| 4:06 a.m. | Pre-market high, 2.46 | |
| 4:06 a.m. | High of the day to the close, 2.46 | |
| 9:00 a.m. | News (Business Wire): Lōkahi Therapeutics™ and Glucotrack CEO Erik Emerson Provides Strategic Update on LT-100, ai² Platform Growth and Clinical Development Priorities | |
| 9:21 a.m. | SEC filing 8-K: 8-K | |
| 9:22 a.m. | SEC filing 425: 425 | |
| 9:30 a.m. | The open: 2.23, down 9.7% from the previous close | |
| 3:59 p.m. | Last trade before the 4:00 p.m. close, 2.02, 17.9% below the high | |
| 4:23 p.m. | First trade 20% above the previous close of 2.47 | |
| 4:25 p.m. | Volume since 4:00 a.m. passes the whole float, 757,086 shares |
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 7 hours after the latest SEC filing before it (425, 9:22 a.m.).
- Volume, from the one-minute bars: 4,998 shares before the 9:30 a.m. open (0%), 19,214 in the first 30 minutes (0%), and 16.85 million in the rest of the day to 8 p.m. (100%).
- Float rotation, the volume since 4 a.m. against the float of 757,086 shares: past it once at 4:25 p.m., twice at 4:28 p.m., three times at 4:31 p.m.
- Other days GCTK met the small-cap rule in our recaps: 1, the latest on September 24, 2026.
- The next session, September 24, 2026, it was up 26.8% from its previous close at the 4:00 p.m. close.
Halts
The exchange's halt feed shows no halts for GCTK that day.
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 GCTK on September 23, 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.