HALT · UNEXPLAINED MOVE · WED OCT 21 2026

ATII halted on Oct 21 2026 at $7.90

ATII+10.2%on Wed Oct 21 2026

Archimedes Tech SPAC Partners II Co. Ordinary Shares was up 10.2% on the day at $7.90, ranked #56 on — its usual five-minute volume, when TapeRank recorded this trading halt at 13:24 ET during regular hours when it was halted. TapeRank recorded 2 events for ATII that day, between 13:24 and 14:33 ET, and each is in the timeline below.

THE DAY ON THE LIST · 2 EVENTS

  1. 13:24 ET
    HALT · REGULAR

    HALTED AT $7.90 · ▲ 10.2% ON THE DAY · — 5M RVOL · RANK #56

    UNEXPLAINEDNO FILINGS · RULE

    ATII is up 11.4% on the day on 13.2x its normal volume for this time of day. 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 13:29 ET · <1 MIN AGO · RULE, NO MODEL
    THE ROW AND SESSION LEVELS AT 13:24 ET
    LAST7.90
    DAY▲ 10.2%
    5 MIN· 0.00%
    5M RVOL—
    5M $VOL—
    FLOAT—
    RANK#56
    SESSIONREGULAR
    VWAP7.44
    HOD7.90
    LOD7.02
    OR HIGH7.15
    OR LOW7.02
    PREV CLOSE7.17
    PM HIGH7.60
    PM LOW7.60
    GAP▼ 0.98%
  2. 14:33 ET
    UNEXPLAINED MOVE · REGULAR

    $9.46 · ▲ 31.9% ON THE DAY · 19.4× 5M RVOL · RANK #1

    UNEXPLAINEDNO FILINGS · RULE

    ATII is up 31.9% on the day on 20.8x its normal volume for this time of day. 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 14:33 ET · <1 MIN AGO · RULE, NO MODEL
    THE ROW AND SESSION LEVELS AT 14:33 ET
    LAST9.46
    DAY▲ 31.9%
    5 MIN▲ 2.83%
    5M RVOL19.4×
    5M $VOL$198K
    FLOAT—
    RANK#1
    SESSIONREGULAR
    VWAP8.40
    HOD9.58
    LOD7.02
    OR HIGH7.15
    OR LOW7.02
    PREV CLOSE7.17
    PM HIGH7.60
    PM LOW7.60
    GAP▼ 0.98%

THE SESSION

  • 09:30 ETOpened at $7.10, -1.0% on the previous close of $7.17
  • 09:34 ETRegular-session low, $7.02
  • 13:23 ETHalted (LUDP); resumed 13:28 ET, after 5 minutes
  • 15:42 ETRegular-session high, $10.37
  • 15:59 ETLast trade of the regular session, $9.90, +38.1% on the previous close of $7.17
  • Volume: 192K shares in regular hours, 158 before the open

ATII opened at $7.10, slipped to a $7.02 low shortly after the open, and later climbed to $7.90 before a 13:23 ET LUDP halt that lasted five minutes. After resuming, the stock reached $9.46 by 14:33 ET, its largest recorded move of +31.9% on the day, then advanced to a $10.37 high at 15:42 ET before ending the regular session at $9.90, up 38.1% from the previous close. TapeRank found no filings or headlines within 24 hours to explain the move; a post-session halt was recorded afterward.

WRITTEN WED OCT 21 2026 16:00 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

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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