UNEXPLAINED MOVE · WED SEP 9 2026

PYXS down 22.7% on Sep 9 2026 with no filing that explains it

PYXS-22.7%on Wed Sep 9 2026

Pyxis Oncology, Inc. Common Stock was down 22.7% on the day at $3.01, ranked #21 on 28.5× its usual five-minute volume, when TapeRank recorded this unexplained move at 07:23 ET during the pre-market session.

THE DAY ON THE LIST · 1 EVENT

  1. 07:23 ET
    UNEXPLAINED MOVE · PRE-MARKET

    $3.01 · ▼ 22.7% ON THE DAY · 28.5× 5M RVOL · RANK #21

    UNEXPLAINEDCONFIDENCE3/5

    Pyxis Oncology is down 22.4% pre-market on a routine 8-K confirming the interim CEO's appointment to permanent CEO, a leadership continuity update with no new clinical, financial, or strategic disclosure. This kind of announcement does not carry the weight to explain a move of this size, leaving order flow as the more plausible driver.

    WHYA 22.4% drop against a CEO confirmation with no new data or guidance is a large move on a small, largely symbolic piece of news.
    ANALYZED 07:22 ET · <1 MIN AGO · ANTHROPIC/CLAUDE-SONNET-5
    THE ROW AND SESSION LEVELS AT 07:23 ET
    LAST3.01
    DAY▼ 22.7%
    5 MIN▼ 4.51%
    5M RVOL28.5×
    5M $VOL$53K
    FLOAT*83.4M
    RANK#21
    SESSIONPRE-MARKET
    VWAP3.59
    HOD4.50
    LOD2.80
    OR HIGH—
    OR LOW—
    PREV CLOSE3.89
    PM HIGH4.50
    PM LOW2.80
    GAP▲ 2.83%

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

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

THE SESSION

  • 09:30 ETOpened at $3.48, -10.5% on the previous close of $3.89
  • 09:30 ETRegular-session low, $3.13
  • 09:49 ETRegular-session high, $4.12
  • 15:59 ETLast trade of the regular session, $3.37, -13.4% on the previous close of $3.89
  • Volume: 3.7M shares in regular hours, 577K before the open

PYXS opened the session at $3.48, down 10.5% from the prior close, after TapeRank flagged the stock pre-market at $3.01 as an unexplained move; TapeRank's read tied the only news available, a routine 8-K confirming the interim CEO's permanent appointment, to the decline but judged that filing too minor to account for a drop of that size, leaving the move unexplained. From there shares fell to a low of $3.13 before rebounding to a high of $4.12 at 09:49 ET, then faded through the day to close the regular session at $3.37, down 13.4% on the day, with no halts recorded.

WRITTEN THU OCT 15 2026 17:44 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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