Market News for September 23, 2026
Every story Market Flux published on September 23, 2026.
- Unusual Volume
State Street Investment Management Launches Three New ETFs Amid Active Trading in Existing Funds
State Street's investment management unit launched three new ETFs, extending the firm's already broad lineup of SPDR products across equity and fixed income markets. The announcement came…
- Most Active
Surf Air Mobility Signs Second OperatorOS Deal with SkyDance Air and Names Barrett Brown as SurfOS President
Surf Air Mobility (NYSE: SRFM) announced on September 23 that it has signed a definitive agreement with SkyDance Air for OperatorOS, its SurfOS flight operations software platform built for…
- Top Mover
Paychex Q1 2027 Earnings Beat on EPS but Stock Falls 5% as Revenue Growth Slows
Paychex posted first-quarter fiscal 2027 results on September 23 that showed solid profit growth but a deceleration in sales that sent shares down 5.3% in pre-market trading. The payroll…
- Top Mover
Meta Muse AI Agent Sends Airbnb Stock Down 8% as Travel Booking Model Faces Disruption
Shares of Airbnb fell roughly 8% on Wednesday, September 23, as investors repriced the entire online travel aggregator sector against the threat posed by Muse, Meta Platforms' personal AI…
- Top Mover
McDonald's Unveils $8.5 Billion NEXT Strategy With 2030 Margin Targets as Stock Hits 4-Year Low
McDonald's launched its McDonald's NEXT growth strategy at its 2026 Investor Day on September 23, committing approximately $8.5 billion in franchisee support through 2036, with roughly $5…
- Top Mover
Cintas Posts Record 3 Billion Dollar Quarter With Beat on Revenue and EPS, Raises Full-Year Guidance
Cintas Corporation reported fiscal first-quarter 2027 revenue of $3.01 billion, topping analyst estimates of $2.98 billion and marking the first time the company has exceeded $3 billion in…
- Top Mover
Alphabet Stock Drops 4% as UK Regulators Push Search Rivals, YouTube Wins Coachella and Launches Creator Tools
Alphabet shares fell roughly 4% on Wednesday, one of the steeper single-session declines among large-cap technology names, as the stock contributed to a nearly 300-point drop in the Dow…
- Top Mover
Expedia Partners with Meta's Muse AI Agent as EXPE Shares Slide 4% on AI Distribution Concerns
Expedia Group announced a partnership with Meta's Muse AI agent, allowing travelers to find and book travel deals directly through the tool, joining PayPal and Shopify among early commerce…
- Top Mover
Meta Muse AI Agent Sparks Selloff in Booking Holdings and Rival Travel Stocks
Booking Holdings shares fell roughly 5% on Wednesday as investors reassessed the viability of the online travel agency model in the face of Meta Platforms' new personal AI agent, Muse. The…
- Top Mover
Best Buy and Amazon Expand Multi-Year Fire TV Partnership to Include Connected TV Advertising
Best Buy and Amazon on Wednesday announced an expanded multi-year Fire TV partnership that will bring the Fire TV operating system experience to Best Buy's Insignia-brand TVs and open new…
- Top Mover
Blackstone Formally Shelves $3 Billion Collateralized Fund Obligation as Hybrid CLO Plan Emerges
Blackstone has officially shelved a roughly $3 billion collateralized fund obligation it had been developing for one of its older secondaries funds, which held approximately 700 underlying…
- Market Flux Event
Paychex Reports In-Line Q1 Revenue as Shares Slip on Cautious Outlook
Paychex reported fiscal first-quarter 2027 revenue of $1.63 billion on Wednesday, matching the FactSet consensus estimate of $1.63 billion, but shares fell as investors focused on the…
- Market Flux Event
Altman and Amodei Urge UN Security Council to Coordinate Globally on AI Safety Risks
OpenAI CEO Sam Altman and Anthropic CEO Dario Amodei appeared before the United Nations Security Council on Wednesday, calling for international coordination on artificial intelligence…
- Market Flux Event
Meta's Muse AI Agent Sparks Broad Selloff in Brokerage and Financial Stocks
Meta Platforms unveiled Muse, a personal AI agent that can autonomously handle online shopping, book movie tickets, schedule appointments and manage financial tasks on a user's behalf…
- Market Flux Event
FDA Plans to Overhaul Tobacco Product Review Process to Speed Vape and Nicotine Pouch Approvals
The U.S. Food and Drug Administration is expected to announce in the coming days that it will revisit a 2021 rule governing new tobacco product applications, according to people familiar…
- Top Story
Trump Backs Diesel Export Ban but Energy Secretary Wright Softens Stance to Voluntary Restrictions
President Donald Trump declared support for banning U.S. diesel exports as domestic and European prices surge to record highs amid the wars in Iran and Ukraine, setting off an immediate…
- Market Flux Event
White House Prepares 90-Day US Diesel Export Ban as Prices Hit $6.52 a Gallon
The Trump administration is preparing a 90-day ban on US diesel exports, according to a Politico report, as diesel prices average $6.52 per gallon, up $2.83 from a year ago, intensifying…
- Market Flux Event
US Crude Inventories Rise 3 Million Barrels Against Expected 500,000-Barrel Draw
US commercial crude oil inventories posted an unexpected build for the week ended September 18, rising by 3 million barrels, according to the Energy Information Administration. Analysts had…
- Unusual Volume
KB Home Beats Q3 Estimates but Cuts Full-Year Margin Guidance, Sending Stock Lower
KB Home reported fiscal third-quarter 2026 results that met or exceeded its own guidance, with housing revenue of $1.3 billion, net income of $65 million and diluted EPS of $1.05, but…
- Market Flux Event
5-Year Treasury Yield Tops 5% for First Time Since 2007 as 30-Year Hits 19-Year High
US Treasury yields surged on September 23, 2026, with the 5-year note breaching 5% for the first time since 2007 after rising 15 basis points on the day. The move was accelerated following…
- Market Flux Event
Meta Muse AI Agent Sparks Broad Selloff in Banks, Brokerages, Insurers and Travel Stocks
Meta Platforms' newly launched personal AI agent, called Muse, triggered a sharp selloff across financial and consumer-facing stocks on September 23 as investors grew alarmed that the tool…
- Market Flux Event
NYSE Signs Deal With Blockchain.com to Bring Tokenized US Stocks to 44 Million Users Around the Clock
The New York Stock Exchange has signed a memorandum of understanding with Blockchain.com that would allow the crypto platform's more than 44 million account holders to trade tokenized…
- Top Story
Iran Sets 5-Day Ultimatum for US to Meet Conditions as Pezeshkian Addresses UNGA
Iran escalated diplomatic tensions with the United States on September 23 at the United Nations General Assembly, with the country's security chief declaring that Tehran would not enter…
- Market Flux Event
10-Year Treasury Yield Hits 5.08%, Highest Level Since July 2007, as Fed Rate Hike Looms
The 10-year U.S. Treasury yield surged to an intraday peak of 5.081% on September 23, its highest level since July 17, 2007, and was last trading up 10.57 basis points at 5.073%. The…
- Market Flux Event
10-Year Treasury Yield Tops 5% for First Time Since 2007 as Markets Price In Fed Rate Hike
The benchmark 10-year Treasury yield surged above 5% on September 23, reaching an intraday high of 5.041%, its highest level since July 2007, as bond markets sold off sharply on…
- Market Flux Event
US Business Activity Surges to Five-Year High as September Flash PMIs Beat Across the Board
S&P Global's September flash PMI readings for the United States came in sharply above expectations across every measure, signaling the strongest pace of business activity in five years. The…
- Market Flux Event
Iran Sets 5-Day Ultimatum for US to Meet Conditions as Pezeshkian Addresses UNGA
Iran escalated diplomatic tensions with the United States on September 23 at the United Nations General Assembly, with the country's security chief declaring that Tehran would not enter…
- Market Flux Event
Energy Secretary Wright Breaks With Trump Over Diesel Export Ban, Warns It Would Lift Gasoline and Jet Fuel Prices
US Energy Secretary Chris Wright publicly broke with President Donald Trump on Wednesday, saying a ban on American diesel exports would not work and would push up gasoline and jet fuel…
- Market Flux Event
Trump Threatens to Annihilate Iran at UN While Confirming Mediated Talks, Xi Heads to Washington
President Donald Trump used his address to the United Nations General Assembly on September 23 to issue a stark warning to Iran, saying he was weighing whether to "annihilate" the country…
- Market Flux Event
Trump Backs Diesel Export Ban but Energy Secretary Wright Softens Stance to Voluntary Restrictions
President Donald Trump declared support for banning U.S. diesel exports as domestic and European prices surge to record highs amid the wars in Iran and Ukraine, setting off an immediate…
- Market Flux Event
GM CEO Mary Barra Joins Growing List of Business Leaders at Trump's State Dinner for Xi Jinping
General Motors CEO Mary Barra is expected to attend President Donald Trump's state dinner at the White House on Thursday, September 24, for Chinese President Xi Jinping, according to two…