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UNEXPLAINED MOVE · WED SEP 9 2026

ATER up 29.4% on Sep 9 2026 with no filing that explains it

ATER+29.4%on Wed Sep 9 2026

Aterian, Inc. Common Stock was up 29.4% on the day at $0.8101, ranked #14 on 5.2× its usual five-minute volume, when TapeRank recorded this unexplained move at 09:43 ET during regular hours.

THE DAY ON THE LIST · 1 EVENT

  1. 09:43 ET
    UNEXPLAINED MOVE · REGULAR

    $0.8101 · ▲ 29.4% ON THE DAY · 5.2× 5M RVOL · RANK #14

    UNEXPLAINEDCONFIDENCE4/5

    Aterian is up 30% on very thin small-cap volume with the only recent filing being a negative Nasdaq bid-price deficiency notice, which is not a bullish catalyst. The move looks driven by momentum order flow in a low-float name rather than any disclosed fundamental development.

    WHYA 30% intraday move has no proportional news basis, as the sole filing is a delisting compliance notice that would normally be neutral to negative, not a driver of a rally of this size.
    ANALYZED 09:42 ET · <1 MIN AGO · ANTHROPIC/CLAUDE-SONNET-5
    THE ROW AND SESSION LEVELS AT 09:43 ET
    LAST0.8101
    DAY▲ 29.4%
    5 MIN▲ 3.87%
    5M RVOL5.2×
    5M $VOL$176K
    FLOAT*10.9M
    RANK#14
    SESSIONREGULAR
    VWAP0.7696
    HOD1.02
    LOD0.6600
    OR HIGH0.7791
    OR LOW0.7400
    PREV CLOSE0.6259
    PM HIGH0.7700
    PM LOW0.7156
    GAP▲ 6.12%

    * FLOAT IS SHARES OUTSTANDING; TRUE FREE FLOAT IS NOT AVAILABLE

THE SESSION

  • 09:30 ETOpened at $0.7490, +19.7% on the previous close of $0.6259
  • 09:40 ETRegular-session high, $0.8200
  • 12:09 ETRegular-session low, $0.6750
  • 15:59 ETLast trade of the regular session, $0.7065, +12.9% on the previous close of $0.6259
  • Volume: 2.0M shares in regular hours, 157K before the open

ATER opened at $0.7490, up 19.7% from the prior close, then pushed to a session high of $0.8200 at 09:40 ET. TapeRank flagged the rally as unexplained at 09:43 ET, noting the only recent filing was a Nasdaq bid-price deficiency notice from September 8, which it read as a compliance matter rather than a bullish catalyst, leaving the 30% move without a proportional news basis. Shares later slid to a low of $0.6750 at 12:09 ET before settling at $0.7065 into the close, finishing the regular session up 12.9% on the day.

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

FILINGS · 24H BEFORE THE MOVE

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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