Stocks making the biggest moves after hours: ZM, SMTC, A, SNDK
Check out the companies making headlines in after-hours trading. Zoom Communications — The work services stock jumped almost 4% after posting stronger-than-expected third-quarter earnings and upbeat full-year guidance. Zoom earned $1.52 per share excluding items on $1.23 billion in revenue, while analysts polled by LSEG penciled in $1.44 a share and $1.21 billion, respectively. The company also increased its share buyback authorization by $1 billion. Sandisk — The data storage company saw shares pop 9% after S & P Dow Jones Indices said it will move Sandisk into the S & P 500, replacing The Interpublic Group of Companies, effective prior to Friday’s trading session. Symbotic — Shares of the automation technology company soared 14% after Symbotic topped fourth-quarter revenue estimates and gave strong guidance for the first quarter. Symbotic reported $618 million in revenue for the period, while analysts polled by LSEG expected $604 million. Agilent Technologies — The life sciences stock shed 1.2%. Although Agilent beat on the top and bottom lines for the fourth quarter, its first-quarter and fiscal 2026 earnings forecast was disappointing. The company expects adjusted earnings of between $1.35 and $1.38 per share in the first quarter, while analysts polled by LSEG expected $1.41 per share. For the fiscal year, Agilent expects to ear $5.86 to $6.00 per share after adjustments, compared to an estimate of $6.02 per share. Keysight Technologies — Keysight, which makes electronics test and measurement equipment and software, saw shares rally nearly 14% on the back of the company’s strong fiscal fourth-quarter results. Keysight earned $1.91 per share, on a non-GAAP basis, while analysts surveyed by FactSet expected $1.83 per share. Keysight’s revenue of $1.42 billion for the quarterly period also surpassed analysts’ consensus forecast of $1.38 billion, per FactSet. Semtech — The semiconductor stock dropped more than 7% after its third-quarter earnings fell short of estimates. Semtech earned 48 cents per share on an adjusted basis on revenue of $267 million. For the fouth quarter, Semtech expects to earn between 40 cents and 46 cents per share, excluding items, on sales of between $268 million to $278 million. Upwork , First Interstate BancSystem , PTC Therapeutics — Shares of Upwork and biopharmaceutical company PTC Therapeutics each gained more than 5%, while First Interstate BancSystem rose about 4%, on news that the three stocks will join the S & P small cap 600 index . PTC Therapeutics will replace Sandisk prior to the opening of trading on Friday. Upwork will replace Premier , also on Friday, while First Interstate will replace Hanesbrands on Dec. 2. The changes are due to a series of acquisitions. — CNBC’s Alex Harring contributed reporting.