Check out the companies making headlines in extended trading. Arista Networks — The cloud networking solutions company added 6% Monday after the bell. Arista Networks reported $1.83 earnings per share, excluding items, on $1.51 billion in revenue. Analysts polled by FactSet had estimated $1.58 earnings per share on $1.48 billion in revenue. Lattice Semiconductor — The maker of low-power programmable chips dropped about 16% in late trading. Lattice’s fourth-quarter revenue forecast of $166 million to $186 million fell short of analysts’ consensus estimate of $195.7 million, according to FactSet’s StreetAccount. Wolfspeed — Shares of the chipmaker jumped more than 11% following its fiscal first-quarter results. The company posted a loss of 53 cents per share, while analysts called for 67 cents per share, per LSEG. Revenue fell short of estimates, coming in at $197 million, while analysts forecasted $208 million. Tenet Healthcare — Shares of the health-care services company added 3%. For the third quarter, Tenet posted adjusted earnings of $1.44 per share on revenue of $5.07 billion. Analysts called for $1.20 per share in earnings and revenue of $5.02 billion, per FactSet. V.F. Corporation — The apparel and footwear company tumbled 6%. The company, which owns The North Face, withdrew its previous full-year 2024 guidance for earnings and revenue, and noted that shoe brand Vans’ performance isn’t expected to improve in the second half of fiscal-year 2024 due to a more difficult U.S. wholesale environment. Monolithic Power Systems – Shares popped 5% in extended trading. The semiconductor company reported third-quarter adjusted earnings of $3.08 per share, while analysts polled by FactSet called for $3.06 per share. The company also gave fourth-quarter revenue guidance ranging from $442 million to $462 million, while analysts called for $451.7 million. Pinterest – The social media stock jumped 13% after Pinterest beat analysts’ expectations for the third quarter. The company posted adjusted earnings of 28 cents per share on revenue of $763million, while analysts polled by LSEG anticipated earnings of 20 cents per share and revenue of $744 million. — CNBC’s Darla Mercado and Scott Schnipper contributed reporting