Cisco Systems is set to report fiscal fourth-quarter earnings after Wednesday's close, with investors focused on whether AI infrastructure demand can sustain recent growth. Analysts expect revenue of about $16.83 billion and adjusted earnings of $1.17 per share, compared to prior guidance of $16.7 billion to $16.9 billion in revenue and adjusted EPS of $1.16 to $1.18. Cisco raised its full-year AI infrastructure order forecast to $9 billion from $5 billion after orders reached $5.3 billion through the first three quarters, and investors will look for commentary on whether that momentum continued. UBS expects networking revenue to exceed its $9.6 billion forecast, while the fiscal 2027 outlook could prove more important than the quarterly results, with attention on AI orders, networking demand, margins, and security revenue.