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Hindsight Markets Small-cap stocks on September 21, 2026

GRML on September 21, 2026: why it ran

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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
11.692.854.404 a.m.9:30noon4 p.m.8 p.m.
GRML on September 21, 2026, one-minute bars in New York time. Shaded: before the 9:30 a.m. open and after the 4:00 p.m. close. Bands: halts from the exchange's feed. Dotted line: the previous close.

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

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

Open this recap on its own page

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 happenedWatch 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

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.

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