Hindsight Markets Small-cap stocks on September 23, 2026
GRML on September 23, 2026: why it ran
On September 23, 2026, GRML opened up 22.9% from the previous close of 14.14 and reached 21.86 at 6:15 a.m. ET. The exchange did not halt it.
- Previous close
- 14.14
- Open, 9:30 a.m.
- 17.38
- Gap at the open
- up 22.9%
- Pre-market high
- 21.86 at 6:15 a.m.
- High, 4 a.m. to 4 p.m.
- 21.86 at 6:15 a.m.
- Low, 4 a.m. to 4 p.m.
- 10.29
- After-hours high, 4 p.m. to 8 p.m.
- 14.40 at 7:08 p.m.
- Last trade before 4:00 p.m.
- 11.20
- Volume
- 28.15 million
- Relative volume
- 3.9x
- Float
- 4.38 million shares, from filings as of September 23, 2026
- Shares outstanding
- 4.81 million
- Halts
- none in the halt feed
Replay GRML's day
It starts at 2:39 p.m. ET with the real Level 2, time and sales and chart, from the same feed the replay plays, stops at 2:42 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: pre-market
- Catalyst: news
- Float traded 6x
- Ask wall held
- Gap and fade
- Offering filings
The day before
On September 22, GRML ran from $9.80 to $18.15. It gave some of it back and closed at $14.14. About 43.6 million shares traded that day, roughly ten times the float.
At 12:00 on the 22nd, GlobeNewsWire ran: "Greenland Mines Applauds Formal Signing of U.S.-Denmark-Greenland Security Agreement at United Nations".
Pre-market: the float traded by 7:07 a.m.
The first trades on the 23rd were at $15.88, already above the $14.14 close. The 4:00 minute touched $17.00. By 4:23 a.m. it was down to $15.22.
It then drifted near $15.60 to $16.00 for half an hour. At 5:33 a.m. a single minute traded 194,441 shares and hit $19.51, up 38% from the previous close. At 5:54 a.m. another minute traded 189,861 shares and reached $20.50.
At 6:15 a.m. it hit $21.86. That minute traded 152,412 shares. Within two minutes it was back at $19.57.
By 7:07 a.m., more shares had traded than exist in the whole float (4.38 million). At 7:00 it had dropped from $20.07 to $18.84 in one minute, on 151,333 shares.
It slid to $17.06 at 7:28 a.m., 22% under the high. Then it climbed again. At 7:58 a.m. it pushed to $18.88, a lower high under $21.86.
A headline and a filing before the open
At 8:30 a.m. GlobeNewsWire ran: "Greenland Mines Ltd. (NASDAQ: GRML) Applies to More than Double Mining Footprint in West Greenland". That minute traded 183,795 shares between $17.20 and $18.53 and closed at $17.60.
At 9:28 a.m. the company filed a 424B5 prospectus (a shelf offering's terms). That minute went from $17.73 to $14.68 on 524,165 shares. At 9:28:34 one sell order swept 43,468 shares from $16.55 to $15.77 across 74 price levels. In the next minute it ran back up to $18.82.
The filing and the swing share a minute. That is all the data shows.
The open and the wall at $16.89
It opened at $17.38, up 23% from the previous close and about 20% under the pre-market high. At 9:30:01 a single trade of 150,435 shares printed at $17.24. The 9:30 minute alone traded 505,007 shares. By 9:39 it had dropped to $15.01.
Here is what a chart doesn't show. At 9:55, an ask wall appeared at exactly $16.89. By 9:55:17 it showed 152,320 shares, about 3.5% of the float. A second ask wall had been at $17.00 since 9:46.
Stop It's 9:56. GRML is at $16.45, up from $15.38 at 9:40. A wall of as many as 152,320 shares showed at $16.89 at 9:55:17, just above. Would you buy here?
Press play: the real Level 2, time and sales and chart stop at 9:56 a.m. ET for your call, then show what happened. The clip starts at 9:53 a.m. ET.
Here's what happened. The 9:56 minute touched $16.89 and no higher. The next minute it fell to $15.89. The wall stayed on the book.
After the wall
At 10:03:19 a 50,000-share trade printed at $15.90, at the ask. Then the selling came in blocks. Sell orders swept the book at 10:08:22 (53,544 shares), 10:09:16 (58,525) and 10:11:16 (42,857). The 10:12 minute hit $13.90 on 297,740 shares.
Stop It's 10:15. GRML is at $14.02. It was $16.45 at 9:56. Would you buy the dip?
Press play: the real Level 2, time and sales and chart stop at 10:15 a.m. ET for your call, then show what happened. The clip starts at 10:12 a.m. ET.
It kept falling. At 10:16:31 another sell order swept 55,976 shares from $13.07 to $12.88 across 19 levels. At 10:18 it hit $12.24, 28% under the wall price.
Then it bounced. At 10:25:56 a buy order swept 44,050 shares from $13.31 to $13.69. A bid wall appeared at $13.50 and grew to 143,284 shares at 10:27:16. It was pulled at 10:27:35. By 10:39 the price was $12.08, and at 10:43 it touched $11.90. A 10:45 spike reached $13.30 and didn't hold.
It spent the late morning near $11.50 to $12.50. At 1:07 p.m. a 52,389-share trade printed at $12.00, at the bid. At 1:18 p.m. a 198,314-share minute dropped it from $11.51 to $10.65. The low of the day was $10.29 at 1:40 p.m. It got back to $12.12 by 3:31. At 3:44:38 p.m. the $16.89 wall was pulled, and the stock had never traded above $16.89 again after 9:56. Then three trades of 22,000 to 25,000 shares hit the bid between 3:55 and 3:58, at $11.69, $11.40 and $11.20.
The 3:59 minute ended at $11.20, 49% under the $21.86 high. That high came at 6:15 a.m., 26% above the open. In the regular session 17.10 million shares traded, on top of 9.14 million pre-market. Together that is about 6 times the float, at about 3.9 times normal volume.
After hours
It ran from $11.03 to $13.10 by 4:58 p.m. At 5:08 p.m. the company filed an 8-K (a current report). The price was $12.38 then, and by 5:10 it had traded as low as $11.30.
At 5:23 p.m. the company filed another 424B5 prospectus. After hours it traded between $11.02 and $14.40, with the high at 7:08 p.m. About 1.91 million shares traded after the bell.
What to take from it
- After 9:56, GRML never traded above its $16.89 ask wall. It touched $16.89 that minute; the wall stayed on the book until 3:44:38 p.m.
- The high of the day came before the regular session. $21.86 at 6:15 a.m. was 26% above the open. A trader who first looked at 9:30 saw a stock already about 20% off its top.
- Filings can arrive at any hour. This day had a 424B5 at 9:28 a.m., before the open, and another at 5:23 p.m., after the close.
Why it ran
News and SEC filings for GRML published between the previous session's close and the first minute GRML traded 20% above it, at 4:00 a.m. ET, newest first, from the same feeds the replay shows.
No news found before the move.
How it traded
Gap and fade. It gapped up 22.9% to 17.38 at the open and traded below the open by 4:00 p.m., at 11.20.
| Time (ET) | What happened | Watch it |
|---|---|---|
| 4:00 a.m. | First trade 20% above the previous close of 14.14 | |
| 6:15 a.m. | Pre-market high, 21.86 | |
| 6:15 a.m. | High of the day to the close, 21.86 | |
| 7:07 a.m. | Volume since 4:00 a.m. passes the whole float, 4.38 million shares | |
| 9:30 a.m. | The open: 17.38, up 22.9% from the previous close | |
| 3:59 p.m. | Last trade before the 4:00 p.m. close, 11.20, 48.8% below the high |
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
- Volume, from the one-minute bars: 9.14 million shares before the 9:30 a.m. open (32%), 3.91 million in the first 30 minutes (14%), and 15.10 million in the rest of the day to 8 p.m. (54%).
- Float rotation, the volume since 4 a.m. against the float of 4.38 million shares: past it once at 7:07 a.m., twice at 9:28 a.m., three times at 10:02 a.m.
- Other days GRML met the small-cap rule in our recaps: 5, the latest on September 24, 2026.
Halts
The exchange's halt feed shows no halts for GRML 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 GRML 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.