Hindsight Markets Small-cap stocks on September 21, 2026
GRML on September 21, 2026: why it ran
On September 21, 2026, GRML opened up 157.2% from the previous close of 2.85 and reached 11.69 at 11:21 a.m. ET. The exchange did not halt it.
- Previous close
- 2.85
- Open, 9:30 a.m.
- 7.33
- Gap at the open
- up 157.2%
- Pre-market high
- 8.20 at 8:31 a.m.
- High, 4 a.m. to 4 p.m.
- 11.69 at 11:21 a.m.
- Low, 4 a.m. to 4 p.m.
- 4.40
- After-hours high, 4 p.m. to 8 p.m.
- 11.20 at 6:26 p.m.
- Last trade before 4:00 p.m.
- 9.41
- Volume
- 93.22 million
- Relative volume
- 189.0x
- Float
- 4.36 million shares, from filings as of September 21, 2026
- Shares outstanding
- 4.81 million
- Halts
- none in the halt feed
Replay GRML's day
It starts at 10:45 a.m. ET with the real Level 2, time and sales and chart, from the same feed the replay plays, stops at 10:48 a.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
- Gap, run and fade
- Main move: late morning
- Catalyst: news
- Float traded 21x
- Round-number walls
- No halts
The day before
On September 18, GRML opened at $2.96 and ran to $4.82. It gave all of it back and closed at $2.85, below its open.
Its last trade of the day, possibly after hours, was at $4.53.
Pre-market: the float traded by 7:05 a.m.
The first trades on the 21st were at $5.01, already well above the $2.85 close. In that first minute it touched $6.50.
At 4:47 a.m. CNBC ran: “U.S.-listed Greenland stocks surge after Trump agrees security deal with Denmark”. The stock was around $4.86 that minute, and it kept drifting lower. It hit $4.40 at 6:49 a.m., the low so far and 32% under that $6.50.
By 7:05 a.m., more shares had traded than exist in the whole float (4.36 million). From $4.72 at 7:05 it climbed to the pre-market high, $8.20 at 8:31 a.m. 26.83 million shares traded before the bell.
The open and the bid at $7.00
It opened at $7.33, up 157% from the previous close. At 9:30 a GlobeNewsWire headline came out: “Greenland Mines More Than Doubles Control Position in the Sarfartoq Rare Earth Magnet District in West Greenland”. The first minute traded 1.1 million shares and ran to $7.90.
From 9:34 on, someone was bidding for a lot of stock at exactly $7.00, across all exchanges. The stock sat just above it.
Stop It's 9:42. GRML is at $7.04. A large bid, about 95,000 shares, sits at $7.00, just below. Would you buy here?
Press play: the real Level 2, time and sales and chart stop at 9:42 a.m. ET for your call, then show what happened. The clip starts at 9:39 a.m. ET.
The bid peaked at 95,036 shares at 9:42:00, about 2.2% of the float. At 9:42:22 trades started printing at $7.00. In 7.5 seconds, 92,742 shares traded at exactly $7.00 and the wall was gone. It wasn't pulled. Sellers hit it. The 9:42 minute low was $6.77.
It recovered to $7.41 by 9:48, then slid. From $7.23 at 9:52 it dropped to $6.63 at 9:55, the low since the open.
The ask wall at $8.00
Above the stock, a different wall had been building. Someone was offering stock at exactly $8.00 from 8:34 a.m. It peaked at 97,873 shares at 9:39, also about 2.2% of the float.
The stock chopped between about $6.60 and $7.40 for the next hour. A 135,868-share bid at $6.75 appeared at 10:24 and was pulled at 10:25:47, two seconds after its peak. At 10:44:03 a buy sweep of 74,700 shares ran $7.43 to $7.50. It reached $7.80 at 10:45, and by 10:46 it was back to $7.00.
Stop It's 10:54. GRML is at $7.40. The pre-market high is $8.20, and an ask wall has sat at $8.00 since 8:34 a.m., at its biggest about 98,000 shares. Would you buy here?
Press play: the real Level 2, time and sales and chart stop at 10:54 a.m. ET for your call, then show what happened. The clip starts at 10:51 a.m. ET.
At 10:54:39 one buy order swept 158,901 shares from $7.76 to $8.00 across 25 levels. 58,376 shares traded at exactly $8.00 in that one second, and the wall was eaten at 10:54:40. It cleared the pre-market high. The 10:54 minute reached $8.54, up 26% from $6.77 at 10:30.
The next minute it fell back to $7.13. From $7.07 at 10:56 it ran again to $9.84 at 11:06, up 39%.
Late morning: the run past $9
It held around $9 for a few minutes. From $9.17 at 11:15 it started up again.
Stop It's 11:21. GRML is at $10.71. It has run from $9.17 in six minutes. Would you chase it here?
Press play: the real Level 2, time and sales and chart stop at 11:21 a.m. ET for your call, then show what happened. The clip starts at 11:20 a.m. ET.
At 11:21:37 a buy sweep of 60,731 shares ran $10.93 to $11.07. The minute topped at $11.69, the high of the day, up 310% from the previous close. The next two minutes gave back to $10.86.
It pushed to $11.49 at 11:25 and $11.24 at 11:32, both under the top. At 11:31:43 another buy sweep took 83,655 shares to $11.05. At 11:34:17 a sell sweep of 83,378 shares ran from $10.81 down to $10.40 across 42 levels. That minute's low was $9.77, 13 minutes after the high.
The rest of the day, and after hours
At 11:49 it pushed to $10.77, another lower high. At 12:03 it dropped from $10.12 to $9.25 in one minute, and it hit $8.19 at 12:26.
Then it rebuilt. It reached $10.39 at 1:55 p.m. and $10.74 at 3:01. In between, a bid of up to 128,378 shares sat at $9.70 from 2:14. At 2:22:20 a sell sweep of 74,484 shares ran $9.80 to $9.36 across 45 levels, and the bid was pulled a second later. At 3:46 Benzinga ran: “Greenland Stocks Explode After Trump's Denmark Deal — GRML Up 245%”.
Then the last two minutes. The stock was $9.98 at 3:57 and fell to $9.32 by the end of 3:58. It closed the regular session at $9.41.
The regular session traded 58.94 million shares, about 13.5 times the float. With 26.83 million pre-market and 7.46 million after hours, the whole day was 93.22 million shares: the float changed hands about 21 times, at 189 times normal volume. There were no halts.
After hours it traded between $8.52 (5:06 p.m.) and $11.20, with the high at 6:26 p.m. It jumped from $10.19 to $10.97 in the 6:17 minute. The last price in our data is $10.94 at 7:59 p.m.
What to take from it
- Walls break on both sides. A 95,000-share bid at $7.00 was gone in 7.5 seconds, and a 98,000-share ask at $8.00 went in one second.
- Right after the $8.00 wall broke, a market buy cost more than the screen showed. At 10:54:41 the screen showed $8.34 with 216 shares, and 5,000 shares averaged $8.50.
- The float traded over by the end of the 7:05 a.m. minute. The stock was in play long before the open, and the high of the day came at 11:21, well after the open.
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, run and fade. It gapped up 157.2% to 7.33 at the open, ran from the open to the high of 11.69 in 111 minutes, then gave back 52% of that move by 4:00 p.m., trading at 9.41.
| Time (ET) | What happened | Watch it |
|---|---|---|
| 4:00 a.m. | First trade 20% above the previous close of 2.85 | |
| 7:05 a.m. | Volume since 4:00 a.m. passes the whole float, 4.36 million shares | |
| 8:31 a.m. | Pre-market high, 8.20 | |
| 9:30 a.m. | The open: 7.33, up 157.2% from the previous close | |
| 11:21 a.m. | High of the day to the close, 11.69 | |
| 3:59 p.m. | Last trade before the 4:00 p.m. close, 9.41, 19.5% 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: 26.83 million shares before the 9:30 a.m. open (29%), 8.43 million in the first 30 minutes (9%), and 57.96 million in the rest of the day to 8 p.m. (62%).
- Float rotation, the volume since 4 a.m. against the float of 4.36 million shares: past it once at 7:05 a.m., twice at 7:43 a.m., three times at 8:11 a.m.
- Other days GRML met the small-cap rule in our recaps: 5, the latest on September 24, 2026.
- The next session, September 22, 2026, it was up 50.2% from its previous close at the 4:00 p.m. close.
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 21, 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.