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HALT · TUE SEP 8 2026

CLIR halted on Sep 8 2026 at $4.72

CLIR0.0%on Tue Sep 8 2026

ClearSign Technologies Corporation Common Stock (DE) was up 0.0% on the day at $4.72, ranked #7 on — its usual five-minute volume, when TapeRank recorded this trading halt at 09:57 ET during regular hours when it was halted.

THE DAY ON THE LIST · 1 EVENT

  1. 09:57 ET
    HALT · REGULAR

    HALTED AT $4.72 · · 0.0% ON THE DAY · — 5M RVOL · RANK #7

    UNEXPLAINEDNO FILINGS · RULE

    CLIR 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 09:57 ET · <1 MIN AGO · RULE, NO MODEL
    THE ROW AND SESSION LEVELS AT 09:57 ET
    LAST4.72
    DAY· 0.0%
    5 MIN▲ 15.69%
    5M RVOL—
    5M $VOL$37K
    FLOAT—
    RANK#7
    SESSIONREGULAR
    VWAP4.34
    HOD4.72
    LOD4.00
    OR HIGH4.00
    OR LOW4.00
    PREV CLOSE—
    PM HIGH—
    PM LOW—
    GAP—

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

THE SESSION

  • 09:31 ETOpened at $4.00
  • 09:31 ETRegular-session low, $4.00
  • 09:56 ETRegular-session high, $4.72
  • 09:56 ETHalted (LUDP); resumed 10:01 ET, after 5 minutes
  • 15:46 ETLast trade of the regular session, $4.39
  • Volume: 18K shares in regular hours

CLIR opened the session at $4.00 at 09:31 ET, then climbed to a high of $4.72 by 09:56 ET, triggering a volatility halt that lasted five minutes before trading resumed at 10:01 ET. TapeRank logged the halt at rank #7 at $4.72, and the stock closed the regular session at $4.39 at 15:46 ET on light volume of 18K shares. TapeRank found no filings or news in the 24 hours around the move, leaving the swing unexplained.

WRITTEN THU OCT 15 2026 17:42 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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