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Every movers-explained article we have published: why each big gainer and decliner moved, written daily from the live wire. Search by ticker or keyword.

2026-09-04

Why Is TARS Stock Up Today? TARS

TARS stock is up 7.37% at $89.34 as of the latest trade, driven by the completion of Tarsus Pharmaceuticals’ acquisition of Alkeus Pharmaceuticals. The deal adds gildeuretinol (ALK…

Why Is TMUS Stock Moving Today? TMUS

T-Mobile US Inc (TMUS) stock is moving lower by 0.5% as of the latest trade at $182.49. The decline follows the announcement of a planned leadership transition in the CFO role. The…

Why Is TRI Stock Moving Today? TRI

Thomson Reuters Corp stock is moving lower by 5.3% as of the latest trade at $105.79. The decline follows a cybersecurity incident reported by the company involving its C-Track pla…

Why Is TRU Stock Down Today? TRU

TRU stock fell 9.34% to $76.99 in morning trading as concerns over pricing practices in the credit reporting industry intensified. The decline followed remarks by Bill Pulte, head …

Why Is TSLA Stock Moving Today? TSLA

TSLA stock is moving lower by 4.2% as of the latest print, driven by a combination of a muted response to Tesla's Cybercab launch and a regulatory probe from the National Highway T…

Why Is TSN Stock Down Today? TSN

Tyson Foods Inc. (TSN) fell 7.26% to $51.76 in the session, marking one of the largest declines in recent weeks. The drop followed the company's latest revision of its fiscal 2026 …

Why Is TTC Stock Down Today? TTC

TTC stock fell 6.84% to $92.37 in the session, marking a sharp decline despite the company reporting a Q3 adjusted EPS of $1.33, which beat estimates by $0.02. The drop came after…

Why Is TTMI Stock Up Today? TTMI

TTMI stock rose 6.68% to $123.09 on Friday, driven by renewed investor interest in the company's long-term growth prospects in the PCB and RF sectors. The stock opened with a 3.3% …

Why Is TYRA Stock Up Today? TYRA

TYRA stock surged 16.17% to $28.88 in a volatile session driven by the announcement that Tyra Biosciences will host a conference call on September 9 to discuss initial results fro…

Why Is UBER Stock Moving Today? UBER

Uber Technologies Inc. stock is moving today, down roughly 5.3% from $79.75 to $75.56 over the last eight sessions, driven by a 10% workforce reduction and strategic shifts toward …

Why Is UCTT Stock Up Today? UCTT

Ultra Clean Holdings (UCTT) surged 6.94% to $71.19 on Tuesday, driven by a bullish analysis from Seeking Alpha that highlighted the company’s growth in AI-driven demand and a forwa…

Why Is USAR Stock Moving Today? USAR

USAR stock is moving today amid a combination of corporate developments and geopolitical tensions affecting the rare earth sector. The stock opened with a 3.1% gap up from the prio…

Why Is VSXY Stock Down Today? VSXY

VSXY stock fell 13.17% to $73.64 on Tuesday, marking its worst day in more than a year. The sharp decline followed the company's Q2 2026 earnings report, which included a revenue m…

Why Is WIX Stock Down Today? WIX

WIX stock is down 6.33% today, closing at $81.20. The decline follows the emergence of multiple class action lawsuits filed against the company. These legal actions allege violatio…

Why Is WLY Stock Down Today? WLY

John Wiley & Sons (WLY) shares fell 5.74% to $47.75 in early trading on September 4, 2026, following the release of its Q1 2027 earnings report and related disclosures. The stock o…

Why Is XXI Stock Up Today? XXI

Twenty One Capital Inc A (XXI) surged 11.50% to $6.40 in a single session driven by a mix of corporate developments and investor speculation. The stock's rise comes amid recent ma…

Why Is ZS Stock Down Today? ZS

ZS stock is down 5.92% at $167.28 in the session, driven by a sharp selloff following earnings and guidance despite strong Q4 results. The cybersecurity firm reported revenue of $8…

2026-09-03

Why Is ADBT Stock Down Today? ADBT

ADBT stock is down 80.46% at $0.34 as of the latest trade, driven by the resignation of CFO Katharyn Field and the resulting market reaction. The stock opened at $1.52, a 11.6% dro…

Why Is AEHR Stock Down Today? AEHR

AEHR Test Systems fell 5.68% to $75.68 in Tuesday's session amid a sharp intraday decline and a wave of insider selling. The stock opened with a modest 0.9% gap up but quickly reve…

Why Is AIN Stock Up Today? AIN

AIN stock is up 7.21% at $63.02 as of the latest trade. The move follows a price target increase from Baird and contract extensions at key business units. The stock opened with a 4…

Why Is ALMS Stock Up Today? ALMS

Alumis Inc (ALMS) shares surged 14.69% to $11.87 in a volatile session that followed a sharp decline in recent weeks. The stock opened lower but reversed sharply in afternoon trad…

Why Is AMBA Stock Down Today? AMBA

Ambarella Inc (AMBA) fell 5.60% to $63.38 in intraday trading on Tuesday, marking a significant decline despite reporting better-than-expected Q2 earnings. The stock opened at $67.…

Why Is APPS Stock Up Today? APPS

Digital Turbine Inc (APPS) shares rose 11.25% to $10.88 on Thursday, driven by a strong earnings report and an upgraded price target from a key analyst. The stock opened with a mod…

Why Is ASST Stock Up Today? ASST

ASST stock is up 7.73% at $26.20 in today’s session driven by a price target increase from B. Riley. The stock opened with a 1.2% gap up and reached a session high of $26.37. The m…

Why Is ASTS Stock Up Today? ASTS

AST SpaceMobile Inc. Class A shares rose 11.83% to $62.40 in Wednesday trading, driven by a new Buy rating from Berenberg with a $92 price target. The firm initiated coverage on th…

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