Hindsight Markets Small-cap stocks on September 23, 2026
YMAT on September 23, 2026: why it ran
On September 23, 2026, YMAT opened up 0.8% from the previous close of 1.32 and reached 1.99 at 12:59 p.m. ET. The exchange halted it once.
- Previous close
- 1.32
- Open, 9:30 a.m.
- 1.33
- Gap at the open
- up 0.8%
- Pre-market high
- 1.37 at 5:00 a.m.
- High, 4 a.m. to 4 p.m.
- 1.99 at 12:59 p.m.
- Low, 4 a.m. to 4 p.m.
- 1.16
- After-hours high, 4 p.m. to 8 p.m.
- 1.36 at 4:00 p.m.
- Last trade before 4:00 p.m.
- 1.27
- Volume
- 2.30 million
- Relative volume
- 2.3x
- Float
- 2.70 million shares, from filings as of September 23, 2026
- Shares outstanding
- 4.01 million
Replay YMAT's day
It starts at 12:37 p.m. ET with the real Level 2, time and sales and chart, from the same feed the replay plays, stops at 12:40 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: midday
- No news in the data
- Halted once
- Bid wall at $1.25
Pre-market: almost nothing
The day before, YMAT traded between $1.31 and $1.49 on just 15,186 shares. The official close was $1.32.
Pre-market was thin. The first trade was one share at $1.33 at 4:22 a.m. The pre-market high was $1.37 at 5:00 a.m., also on one share. 1,727 shares traded before the bell. No news headline appears in the data for the day.
The open and a slow morning
It opened at $1.33, a penny above the previous close. At 9:49 it slipped to $1.31 on 3,190 shares, and by 9:53 it was at $1.25. It spent most of the morning between $1.20 and $1.27, with some minutes where nothing traded at all. At 12:11 it was $1.20.
The afternoon move
At 12:41 it was still $1.20. Then it started to move. By 12:43 it was at $1.34, and the 12:44 minute had no trades.
Stop It's 12:48. YMAT is at $1.41. Seven minutes ago it was $1.20, and the pre-market high was $1.37. Would you buy here?
Press play: the real Level 2, time and sales and chart stop at 12:48 p.m. ET for your call, then show what happened. The clip starts at 12:45 p.m. ET.
That minute traded 4,932 shares and ran to $1.46. At 12:49 it was halted (a volatility pause) with the last trade at $1.71. The 12:49 minute traded 21,339 shares.
It reopened at 12:59:48 at $1.98, 16% above where it stopped. The first big print was 59,175 shares at $1.98.
$1.99 was the high so far, in the 12:59 minute. That minute traded 141,245 shares. The next candle, at 1:00 p.m., dropped to $1.41 and traded 257,398 shares.
The bounce and the $1.25 bid wall
It did not go straight down. At 1:02 p.m. a single sell order went through four price levels, 16,431 shares from $1.55 to $1.52. Then it bounced. At 1:07 p.m. it pushed to $1.90, a lower high under $1.99. At 1:09 p.m. a sell of 12,439 shares ran from $1.73 down to $1.68. By 1:24 p.m. it was $1.32, and by 1:30 p.m. it was $1.37.
Level 2 shows something a chart doesn't. A bid wall formed at $1.25 at 1:23 p.m. and grew to 21,755 shares at 1:24 p.m., about 0.8% of the float.
Stop It's 1:37. YMAT is at $1.25. A bid wall that peaked at 21,755 shares has been sitting at $1.25 since 1:23. Would you buy here?
Press play: the real Level 2, time and sales and chart stop at 1:37 p.m. ET for your call, then show what happened. The clip starts at 1:34 p.m. ET.
Here's what happened. At 1:37:50 the wall was gone. In the seconds before, 9,710 shares traded at exactly $1.25, from 1:37:46 to 1:37:49. The 1:38 candle went to $1.20.
The afternoon and the close
From there it drifted. It was $1.18 at 2:02 p.m. The low after the open was $1.16 at 2:57 p.m., on 10,933 shares. A short pop at 3:22 p.m. took it to $1.26, it slipped back to $1.17 at 3:32 p.m., then moved up into the close. It reached $1.28 at 3:58 p.m., and the 4:00 p.m. minute traded 22,858 shares and ran to $1.36.
By the close, 2.24 million shares had traded, about 83% of the 2.70 million-share float, at about 2.3 times normal volume.
What to take from it
- A halt can reopen higher than it stopped, and the book was thin at the reopen. It stopped at $1.71 and reopened at $1.98. A 5,000-share market buy at that second would have cost $1,052 more than the screen showed.
- A bid wall is not a floor. The $1.25 wall was gone at 1:37:50, and the stock traded down to $1.20 within the next minute.
- After the top, the next push stopped lower. $1.99 at 12:59, then $1.90 at 1:07 p.m. It closed at $1.36, 32% below the high.
Why it ran
News and SEC filings for YMAT published between the previous session's close and the first minute YMAT traded 20% above it, at 12:49 p.m. ET, newest first, from the same feeds the replay shows.
No news found before the move.
How it traded
Intraday run. It opened up 0.8% at 1.33, then ran from the open to the high of 1.99 in 209 minutes through a halt.
| Time (ET) | What happened | Watch it |
|---|---|---|
| 5:00 a.m. | Pre-market high, 1.37 | |
| 9:30 a.m. | The open: 1.33, up 0.8% from the previous close | |
| 12:49 p.m. | First trade 20% above the previous close of 1.32 | |
| 12:49 p.m. | Halted: LULD pause (limit up-limit down). Trading resumes at 12:59 p.m. | |
| 12:59 p.m. | High of the day to the close, 1.99 | |
| 3:59 p.m. | Last trade before the 4:00 p.m. close, 1.27, 36.2% 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: 1,727 shares before the 9:30 a.m. open (0%), 7,210 in the first 30 minutes (0%), and 2.29 million in the rest of the day to 8 p.m. (100%).
- The halt at 12:49 p.m.: up 27.6% in the 5 minutes into it, reopened at 1.98, up 15.8% from the last trade before it, then down 22.7% over the next 5 minutes.
- Other days YMAT met the small-cap rule in our recaps: 3, the latest on October 9, 2026.
Halts
| Halted | Resumed | Length | Reason in the feed |
|---|---|---|---|
| 12:49 p.m. | 12:59 p.m. | 10 min 0 s | LULD pause (limit up-limit down) |
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 YMAT 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.