Market wraps, big movers, the Fed and the economy. Nora Whitfield is a pen name; every Mostly Markets writer uses one.
The DailyFive big companies lost about a quarter or more of their value this week on soft outlooks, and the Nasdaq ended October down about 5.3%. The week in eight charts.
Big moversReddit 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.
The Nasdaq fell 2.86% and the S&P 500 1.82% on Friday as Intel plunged 28.6% on a weak forecast, closing out the Nasdaq's worst month since March 2025.
The Nasdaq fell 1.38% and the S&P 500 slipped 0.30% as Alphabet had its worst day since Google's 2004 listing, while small caps rose 1.01%. Intel plunged and Amazon slid after hours.
Big moversIntel plunged 19.6% after hours on a weak forecast, Reddit 16.7% on soft guidance and a traffic warning, and Amazon slid 6.5% after missing on earnings per share and ads.
Apple and Palantir report on Monday, AMD on Tuesday, and Arm and Qualcomm on Wednesday. In between come the midterm elections and, on Friday, 6 November, the October jobs report.
Big moversF5 plunged 20.4% on its forecast, Vertiv soared 16.5% and Oracle 10.7% on Wednesday, and Alphabet plunged 10.8% after hours, as of 5:53 p.m. ET, after its search revenue missed.
The 10-year closed at 5.05% on Wednesday after the Fed held rates. It has finished at 5% or higher on 26 of the last 31 trading days and peaked at 5.31%, the highest since 2002.
The S&P 500 edged up 0.28% to 7,743.98 on Wednesday after the Fed held rates in a 10-2 vote. Oracle soared 10.7%, Vertiv 16.5%, and F5 plunged 20.4%.
The Fed kept its key rate at 3.75%–4.00% on Wednesday in a 10-2 vote. Governor Lisa Cook and Cleveland Fed President Beth Hammack wanted another quarter-point increase.
Big moversXylem plunged 14.2% on a forecast cut and Boeing 10.7% on a slower 737 ramp, while SoFi soared 13.4%, Pentair 12.8%, and Celestica 12.1% on strong results on Tuesday.
The Nasdaq rose 1.18% as chip stocks gained 3.60% on a $63 billion financing deal for Anthropic, while Boeing's 10.7% drop left the Dow up just 15.99 points.
The Conference Board's index rose 7.5 points to 91.7 in October, far above the 81.0 economists expected, as gas prices eased. Consumers still expect 5.8% inflation.
Big moversNu Holdings plunged 17.0% and MercadoLibre slid 7.8% after Brazil's election, Fair Isaac plunged 13.2% on a downgrade, and Lumentum soared 8.2%: Monday's four biggest moves among the stocks we cover.
The S&P 500 rose 0.70% and chip stocks 2.82% after Anthropic's IPO filing revived the AI trade, while Brazil's main index had its worst day since March 2020.
The Dow fell 652.82 points, or 1.23%, on Friday as Brent crude settled at $116.72 after more attacks on Saudi Arabia. The S&P 500 lost 0.52% for a second weekly loss.
Big moversZscaler soared 23.0% this week as security stocks rallied and Hasbro 18.9% after raising its outlook, while Lam Research plunged 12.8% on a supply warning and Meta 9.4% on its AI spending.
Why it movedAT&T slid 8.0% and T-Mobile 7.7% on Friday after Bloomberg reported SpaceX is in talks for at least 80,000 US cell sites for a phone network. Crown Castle soared 9.1%.
Big moversModerna plunged 17.6% on Thursday after its melanoma data posted early, Lam Research plunged 11.8% on a supply warning, and Spotify soared 11.1% on its profit forecast.
ChartSandisk, Dell and Micron are up 200% to 431% in 2026, behind only Moderna, while AppLovin has lost 60.8%, the worst in the index.
The Nasdaq fell 2.60% and the chip index 6.72% on Thursday as worries about paying for AI returned, yet 337 of the 503 S&P 500 stocks rose as money ran to staples and bonds.