Stocks Making the Biggest Moves This Week: Reddit, ServiceNow, F5, Fortinet and Intel
Reddit plunged 36.4% this week on a soft forecast, and ServiceNow, F5, Fortinet, and Intel each lost about a quarter or more of their value after their own disappointing outlooks.
All five of the week’s biggest moves, measured from Monday’s open to Friday’s close, were losses, and all five came after results or forecasts that disappointed investors.
**Reddit (RDDT)**, -36.4%: the online discussion platform plunged 29.2% on Friday alone, to $91.73, after forecasting fourth-quarter revenue of $1.00 billion to $1.03 billion, short of the $1.05 billion analysts expected according to LSEG data cited by CNBC. It also warned that falling traffic from Google search could shrink its daily users, overshadowing third-quarter revenue growth of 53%. Full story
**ServiceNow (NOW)**, -33.9%: the business-software company had its worst day on record on Thursday, plunging 27.0%, after forecasting 18.5% growth in cRPO, the contracted revenue it expects to book over the next 12 months. That was slower than the 21% it just reported and below estimates. It lost another 4.1% on Friday to close at $105.12. Full story
**F5 (FFIV)**, -25.7%: the company, whose software and hardware keep big websites and apps running, plunged 20.4% on Wednesday after forecasting slower growth of 8% to 9% in its new fiscal year and lower margins as memory costs rise, and Piper Sandler downgraded it to Neutral. It fell another 6.9% on Friday, to $338.34. Full story
**Fortinet (FTNT)**, -24.4%: the cybersecurity company plunged 20.1% on Thursday after cutting its 2026 forecast for service revenue, the subscriptions and support that make up most of its sales, to $5.15 billion to $5.17 billion. That was below the $5.2 billion analysts expected, according to Bloomberg data cited by Yahoo Finance, even though the third quarter beat estimates. Full story
**Intel (INTC)**, -24.4%: the chipmaker rose about 9% from Monday’s open to Wednesday’s close, then had its worst day since 1974 on Friday, plunging 28.6% to $65.76, Benzinga and CNN reported. It forecast fourth-quarter revenue of $15 billion to $16 billion, well short of estimates, and blamed a memory-chip shortage that is hurting PC demand. Full story
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Mostly Markets is for information and education only and isn't investment advice. Nora Whitfield is a pen name. Prices are from Nasdaq and CNBC as of the time stated.
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