Cisco Jumps 4% in Broad Networking Sector Rally as Dow Surges 550 Points

Cisco Systems shares rose roughly 4% on September 11, joining a sharp rally across networking stocks that drove the Dow Jones Industrial Average up nearly 550 points. Arista Networks gained 5% and Ciena climbed 5% to $351.38, with the group extending gains across the full week in what analysts characterized as targeted sector rotation rather than a broad tech move. The iShares Expanded Tech-Software Sector ETF gained just 2% and the S&P 500 roughly 1%, while networking names surged 4-5%, underlining the sector-specific nature of the move.

The rally comes about a month after Cisco reported fiscal fourth-quarter 2026 results on August 12 that sent the stock down 10% initially. Revenue rose 18% year over year to $17.252 billion, topping estimates by 2.36%, and non-GAAP earnings per share climbed 23% year over year to $1.22, beating consensus by 4.27%, with product orders jumping 35%. Despite the strong top-line performance, investors initially punished the stock over margin pressure: non-GAAP gross margin fell 210 basis points to 66.3% and product gross margin dropped 270 basis points to 64.8%, reflecting a heavier hardware mix and rising memory costs.

Heading into the session, Cisco shares had lost about 5.3% since the earnings report, underperforming the S&P 500. Management guided for first-quarter fiscal 2027 gross margin in the 65-66% range and indicated that the hardware-heavy AI and networking business mix is likely to remain a gross-margin headwind through fiscal 2027, even as it implied roughly 13% revenue growth between the second and fourth quarters of the fiscal year.