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HALT · TUE SEP 8 2026

YMAT halted on Sep 8 2026 at $1.27

YMAT0.0%on Tue Sep 8 2026

J-Star Holding Co., Ltd. Class A Ordinary Shares was up 0.0% on the day at $1.27, ranked #7 on — its usual five-minute volume, when TapeRank recorded this trading halt at 10:48 ET during regular hours when it was halted.

THE DAY ON THE LIST · 1 EVENT

  1. 10:48 ET
    HALT · REGULAR

    HALTED AT $1.27 · · 0.0% ON THE DAY · — 5M RVOL · RANK #7

    UNEXPLAINEDNO FILINGS · RULE

    YMAT is flat on the day on no measurable its normal volume for this time of day, and trading is halted under code LUDP. No filings or headlines were found in SEC EDGAR filings in the last 24 hours, so this is order flow rather than a disclosed catalyst.

    WHYNo filings or headlines within 24 hours of the move.
    ANALYZED 10:48 ET · <1 MIN AGO · RULE, NO MODEL
    THE ROW AND SESSION LEVELS AT 10:48 ET
    LAST1.27
    DAY· 0.0%
    5 MIN▼ 22.56%
    5M RVOL—
    5M $VOL$22K
    FLOAT—
    RANK#7
    SESSIONREGULAR
    VWAP1.55
    HOD1.85
    LOD1.27
    OR HIGH1.72
    OR LOW1.71
    PREV CLOSE—
    PM HIGH1.85
    PM LOW1.70
    GAP—

    — MEANS THE LEVEL DID NOT EXIST YET AT THAT INSTANT, NOT ZERO

THE SESSION

  • 09:30 ETOpened at $1.72
  • 09:41 ETRegular-session high, $1.77
  • 10:48 ETHalted (LUDP); resumed 10:58 ET, after 10 minutes
  • 10:58 ETRegular-session low, $0.8500
  • 10:58 ETHalted (LUDP); resumed 11:08 ET, after 10 minutes
  • 15:36 ETLast trade of the regular session, $1.35
  • Volume: 108K shares in regular hours, 2K before the open

YMAT opened at $1.72 at 09:30 ET and pushed to a session high of $1.77 by 09:41 ET before sliding sharply to a low of $0.8500 at 10:58 ET, triggering back-to-back volatility halts at 10:48 ET and 10:58 ET, each lasting ten minutes, with TapeRank recording the stock at rank #7 during the first halt at $1.27. TapeRank found no filings or news in the 24 hours around the move, so the swing stood unexplained, and shares steadied afterward to close the regular session with a last trade of $1.35 at 15:36 ET.

WRITTEN THU OCT 15 2026 17:43 ET BY ANTHROPIC/CLAUDE-SONNET-5 FROM THE FACTS ON THIS PAGE

FILINGS · 24H BEFORE THE MOVE

No SEC filings in the 24 hours before this was recorded. A move on an unfiled press release shows nothing here, which is what UNEXPLAINED means.

On the tape right now

WHERE THE LIST STOODWED NOV 4 2026 · 13:49 ETRECORDED LIVE · 742 QUALIFY

01
ECGSURGING 0:05
79.71
▼ 29.3%
▼ 1.41%
41.0×
FAD
$6.2M
51.1M*
STRETCHED
02
CAVASURGING 0:00
64.78
▲ 7.4%
▲ 1.30%
9.3×
ORBHODVWH
$11.6M
116.8M*
UNEXPLAINED
03
URGNSURGING 0:00
29.16
▼ 15.2%
▼ 1.29%
15.6×
FAD
$1.4M
48.9M*
JUSTIFIED
04
MPTISURGING 0:00
64.15
▼ 1.5%
▲ 0.96%
23.8×
VWH
$637K
4.3M*
UNEXPLAINED
05
LSPDSURGING 0:00
11.52
▲ 4.9%
▼ 1.24%
16.5×
ORB
$426K
133.3M*
UNEXPLAINED
06
CRCTSURGING 0:00
8.90
▲ 49.2%
▼ 0.72%
15.1×
GAPORBVWHEXT
$395K
54.7M*
STRETCHED
07
BROSSURGING 0:00
43.97
▲ 0.9%
▼ 0.91%
4.0×
FAD
$4.3M
137.9M*
UNEXPLAINED
08
LMRICOOLING 1:35
12.85
▲ 14.5%
▲ 1.06%
132×
ORBHODVWH
$1.7M
—
UNEXPLAINED
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