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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 ADSK Stock Down Today? ADSK

ADSK stock is down 6.48% in today’s session, trading at $222.14 as of the latest update. The move follows a volatile intraday trajectory that saw the stock open at $236.06 and fall

Why Is AEHR Stock Up Today? AEHR

AEHR Test Systems shares surged 12.23% to $85.60 in Tuesday's session, driven by a combination of elevated call volume and a bullish market reaction to the company's upcoming confe

Why Is ALAB Stock Up Today? ALAB

Astera Labs Inc (ALAB) surged 11.23% to $314.59 in morning trade driven by a combination of a gap up open and sustained buying pressure. The stock opened at $290.20, 2.6% higher th

Why Is ALB Stock Moving Today? ALB

Albemarle Corporation stock is moving lower today following the announcement of a leadership transition. The company named Ragnar "Rag" Udd, currently Chief Commercial Officer at B

Why Is AMBA Stock Down Today? AMBA

Ambarella Inc. stock fell 5.60% to $63.38 in morning trading on Wednesday. The decline followed the company’s Q2 2027 earnings report and a Q3 revenue outlook that, while slightly

Why Is AMC Stock Up Today? AMC

AMC Entertainment Holdings Inc A (AMC) surged 6.99% to $2.72 in morning trading on Thursday as CEO Adam Aron publicly condemned Robinhood for issuing tokenized AMC stock on its pla

Why Is ANET Stock Moving Today? ANET

Arista Networks Inc (ANET) is moving modestly higher in early trading on September 21 after being added to the S&P 100 index at the market open. The stock opened at $193.40, a 1.0%

Why Is APPF Stock Down Today? APPF

APPF stock fell 5.92% to $210.34 on Wednesday, marking a sharp decline in the session. The drop followed a significant insider sale by Maurice Duca, a 10% shareholder, who sold 15,

Why Is APPS Stock Up Today? APPS

Digital Turbine Inc. shares surged 11.25% to $10.88 on Thursday amid a recent earnings beat and an upgraded price target. The stock has been volatile in recent months, trading wit

Why Is ASAN Stock Down Today? ASAN

ASAN stock fell 16.60% to $8.41 on Thursday, marking one of the largest declines in the session. The drop followed a mixed earnings report and a downward revision to its full-year

Why Is AZN Stock Moving Today? AZN

AZN stock is moving lower by 1.9% as of the latest trade at $163.00. The primary driver is the mixed reaction to AstraZeneca’s recent regulatory and clinical developments, includi

Why Is BAC Stock Moving Today? BAC

Bank of America Corp (BAC) shares are moving slightly higher after opening with a 0.7% gap down. The stock has recovered from an early session low of $61.96 to trade near $63.02 at

Why Is BAND Stock Down Today? BAND

BANDWIDTH INC A (BAND) fell 6.35% to $44.10 on Thursday, marking one of the largest intraday declines in recent weeks. The stock opened at $47.19 but quickly declined throughout t

Why Is BE Stock Moving Today? BE

Bloom Energy (BE) stock is rising sharply in after-hours trading following its announcement of inclusion in the S&P 500 index. The stock opened with a 2.6% gap up and reached a ses

Why Is BETA Stock Up Today? BETA

BETA Technologies shares rose 5.69% to $22.00 in morning trading on Tuesday. The stock opened with a 1.8% gap up and reached an intraday high of $22.62 before retreating slightly.

Why Is BLSH Stock Up Today? BLSH

BLSH stock is up 10.97% today, closing at $36.22, driven by a new $100 million stablecoin debt facility announced by the company. The deal involves USD.AI and is intended to financ

Why Is BLTE Stock Up Today? BLTE

BLTE stock surged 12.22% to $192.00 in early trading on Friday, driven by a series of analyst upgrades and renewed investor interest in the biotech firm’s Stargardt therapy pipelin

Why Is BMNR Stock Down Today? BMNR

BMNR stock fell 6.07% to $24.85 in early trading on Friday amid renewed investor caution. The decline followed a volatile session shaped by a wide intraday range and a gap down fro

Why Is BSP Stock Down Today? BSP

BSP stock fell 5.56% to $39.37 in morning trading as the market digested the company’s recent acquisition of Airtable. The all-cash transaction, which covered 100% of Airtable’s sh

Why Is BSY Stock Down Today? BSY

Bentley Systems Inc (BSY) fell 6.01% to $33.45 in early trading on September 4, 2026. The decline came amid broader market volatility and a selloff in the 52-week tape, which saw 2

Why Is BTDR Stock Up Today? BTDR

Bitdeer Technologies Group (BTDR) surged 10.89% to $11.91 on Tuesday, driven by news of its $100 million acquisition of 200 acres near a Rockdale AI/HPC site. The move reflects in

Why Is BULL Stock Up Today? BULL

BULL stock surged 11.11% to $10.00 on Thursday driven by increased call volume and a bullish market environment for trading platforms. The stock’s rise comes amid a broader rally i

Why Is CBRS Stock Up Today? CBRS

Cerebras Systems Inc Class A (CBRS) surged 12.94% to $215.09 in early trading, driven by a major development in the company’s AI infrastructure expansion. The stock opened with a m

Why Is CIEN Stock Down Today? CIEN

CIEN stock fell 10.36% to $317.46 on Wednesday amid a shift in investor sentiment toward AI networking stocks and a series of analyst price target cuts. The drop followed a mixed r

Why Is CIFR Stock Up Today? CIFR

Cipher Digital Inc (CIFR) surged 14.43% to $17.37 in a single session, driven by news that the company has begun development of lateral pipelines to support data center expansion.

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