Why Cisco Systems, Inc. (CSCO) Stock Fell 8.4% on Aug 13, 2026
The clearest new catalyst: Gross margin compression.
Why did CSCO stock fall?
Cisco shares fell 8.4% on August 13, 2026, the day after the company reported record fiscal Q4 revenue of $17.3 billion and beat earnings expectations with $1.22 non-GAAP EPS, plus $4 billion in AI infrastructure orders. The sell-off was driven by a 210 basis point compression in non-GAAP gross margins year-over-year due to higher memory costs and a hardware-heavy product mix, combined with profit-taking after the stock had rallied over 60% year-to-date and conservative forward guidance that disappointed investors expecting stronger AI-driven growth.
- Gross margin compression: Non-GAAP gross margins fell to 66.3% from 68.4% year-over-year, pressured by higher memory and component costs tied to scaling AI hardware production, signaling near-term profitability headwinds despite revenue growth.
- Conservative forward guidance: Management's fiscal 2027 earnings guidance of $1.32–$1.34 per share was viewed by analysts as modest relative to the stock's elevated valuation and market expectations for AI infrastructure demand acceleration.
- Profit-taking after pre-earnings rally: Cisco's stock had surged over 60% year-to-date entering the earnings report, leaving limited room for upside surprise and triggering a classic 'sell the news' reaction despite the beat.
- Record revenue and AI orders beat: While the company delivered record $17.3 billion revenue (18% YoY growth) and $4 billion in AI infrastructure orders, these results were largely priced into the pre-earnings rally and insufficient to offset margin and guidance concerns.
Initial detection
BestStocks first flagged CSCO intraday on Aug 13, 2026; this analysis was finalized after the close using the confirmed −8.4% session move and additional catalyst research.
Show the initial intraday note
Cisco reported Q4 fiscal 2026 earnings late August 12 with record $17.3B revenue (18% YoY growth) and $1.22 non-GAAP EPS, both beating consensus, plus $4B in AI infrastructure orders for the quarter. However, non-GAAP gross margins compressed 210 basis points year-over-year due to higher memory costs and a hardware-heavy product mix, triggering profit-taking that drove shares down 8.12% to $113.82 by early intraday trading on August 13 (Reuters).
What to watch next: Cisco's fiscal 2027 guidance and margin outlook, expected in the earnings call; monitor whether management signals margin stabilization or continued compression.
Other developments that session
Cisco stock fell 8.4% post-earnings despite record revenue and strong AI demand, driven by gross margin deterioration concerns.
Frequently asked questions
Why did Cisco Systems, Inc. (CSCO) stock fall on Aug 13, 2026?
Cisco shares fell 8.4% on August 13, 2026, the day after the company reported record fiscal Q4 revenue of $17.3 billion and beat earnings expectations with $1.22 non-GAAP EPS, plus $4 billion in AI infrastructure orders. The sell-off was driven by a 210 basis point compression in non-GAAP gross margins year-over-year due to higher memory costs and a hardware-heavy product mix, combined with profit-taking after the stock had rallied over 60% year-to-date and conservative forward guidance that disappointed investors expecting stronger AI-driven growth.
How much did CSCO stock fall on Aug 13, 2026?
CSCO fell 8.4% during the Aug 13, 2026 trading session.
What were the main drivers behind CSCO's move?
Gross margin compression; Conservative forward guidance; Profit-taking after pre-earnings rally; Record revenue and AI orders beat.