YMAT halted on Sep 23 2026 at $1.71
YMAT+29.5%on Wed Sep 23 2026
J-Star Holding Co., Ltd. Class A Ordinary Shares was up 29.5% on the day at $1.71, ranked #1 on 168× its usual five-minute volume, when TapeRank recorded this trading halt at 12:50 ET during regular hours when it was halted. TapeRank recorded 3 events for YMAT that day, between 12:50 and 13:00 ET, and each is in the timeline below.
THE DAY ON THE LIST · 3 EVENTS
- 12:50 ETHALT · REGULAR
HALTED AT $1.71 · ▲ 29.5% ON THE DAY · 168× 5M RVOL · RANK #1
UNEXPLAINEDNO FILINGS · RULEYMAT is up 29.5% on the day on 164x 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 and Benzinga wire headlines 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 12:50 ET · <1 MIN AGO · RULE, NO MODELTHE ROW AND SESSION LEVELS AT 12:50 ET
LAST1.71DAY▲ 29.5%5 MIN▲ 26.67%5M RVOL168×5M $VOL$107KFLOAT—RANK#1SESSIONREGULARVWAP1.44HOD1.71LOD1.20OR HIGH—OR LOW—PREV CLOSE1.32PM HIGH—PM LOW—GAP▲ 2.27%— MEANS THE LEVEL DID NOT EXIST YET AT THAT INSTANT, NOT ZERO
- 12:50 ETUNEXPLAINED MOVE · REGULAR
$1.71 · ▲ 29.5% ON THE DAY · 163× 5M RVOL · RANK #1
The same verdict as at 12:50 ET.
THE ROW AND SESSION LEVELS AT 12:50 ET
LAST1.71DAY▲ 29.5%5 MIN▲ 26.67%5M RVOL163×5M $VOL$107KFLOAT—RANK#1SESSIONREGULARVWAP1.44HOD1.71LOD1.20OR HIGH—OR LOW—PREV CLOSE1.32PM HIGH—PM LOW—GAP▲ 2.27%— MEANS THE LEVEL DID NOT EXIST YET AT THAT INSTANT, NOT ZERO
- 13:00 ETMOVER · REGULAR
$1.83 · ▲ 38.6% ON THE DAY · 473× 5M RVOL · RANK #2
The same verdict as at 12:50 ET.
THE ROW AND SESSION LEVELS AT 13:00 ET
LAST1.83DAY▲ 38.6%5 MIN▼ 7.58%5M RVOL473×5M $VOL$576KFLOAT—RANK#2SESSIONREGULARVWAP1.74HOD2.00LOD1.20OR HIGH—OR LOW—PREV CLOSE1.32PM HIGH—PM LOW—GAP▲ 2.27%— MEANS THE LEVEL DID NOT EXIST YET AT THAT INSTANT, NOT ZERO
THE SESSION
- 09:35 ETOpened at $1.35, +2.3% on the previous close of $1.32
- 12:49 ETHalted (LUDP); resumed 12:59 ET, after 10 minutes
- 12:59 ETRegular-session high, $2.00
- 15:03 ETRegular-session low, $1.15
- 15:59 ETLast trade of the regular session, $1.27, -3.8% on the previous close of $1.32
- Volume: 4.4M shares in regular hours, 3K before the open
YMAT opened at $1.35, above the previous close, and climbed through the session to a $2.00 high at 12:59 ET after a 10-minute LUDP halt began at 12:49 ET. TapeRank recorded the stock at rank #1 during the halt at $1.71 and later at rank #2 at $1.83, up 38.6% on the day, before it reversed to a $1.15 low at 15:03 ET and finished at $1.27. TapeRank found no filings or headlines within 24 hours of the move and classified it as unexplained.
WRITTEN THU OCT 15 2026 17:55 ET BY OPENAI/GPT-5.6-LUNA FROM THE FACTS ON THIS PAGE
FILINGS AND NEWS · 24H BEFORE THE MOVE
No SEC filings or wire news in the 24 hours before this was recorded. A move on news that never reached the wire 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
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