What are today's top business/market headlines?

Here's a roundup of today's top business and market headlines:

Markets & Economy

•Bears are taking control of the stock market as oil prices jump and Treasury yields climb. The Dow posted its worst week since March as Treasury yields rose, according to CNBC.

•The main U.S. stock index rose to 7596 points on September 17, gaining 0.59% from the previous session, though it has declined 1.24% over the past month while remaining 14.54% higher than a year ago.

•Earlier in the week, US stock indices closed lower after the Federal Reserve raised interest rates by 25bps, as expected, with the S&P 500 falling 0.4% and the Dow shedding 631 points. Median projections by FOMC members reflected one or two additional hikes expected for this year, aligned with upward revisions to inflation and GDP growth projections, alongside lower unemployment expectations for coming years.

Corporate News

•Warren Buffett is stepping down as chairman of Berkshire Hathaway, to be replaced by his son Howard, after holding the position since 1970. He will be transitioning into a chairman emeritus role.

•Shares of steel producers Steel Dynamics and Nucor fell more than 1.5% after delivering third-quarter earnings guidance showing weaker-than-expected results, with Nucor saying steel mills and steel products earnings will increase while raw materials segment earnings are expected to decrease.

•Netflix declined more than 3% after Wells Fargo downgraded the stock to underweight, citing worrying engagement trends and weaker content expected in the second half of 2026 that will lead to lower margin expansion in 2027 and 2028.

Corporate Governance

•Activist investor Jana is pushing Cooper Cos. to replace its CEO and board chair.

Currency & Global Markets

•The yen pared declines on Friday, with the Nikkei newspaper reporting that the Bank of Japan inquired with market participants about exchange-rate levels, a step often seen as a precursor to official intervention.

Commodities

•Tightening global copper supply, robust demand from the AI boom, and uncertainty over tariffs are all whipping up a frenzy for the red metal, sending prices soaring to their highest levels ever.

Corporate/Political Intersection

•Trump has unleashed a $403 million war chest on the midterms as CNBC notes "now comes the hard part."

•Separately, Trump said the U.S. will build a "large Military presence" in Greenland as part of a security deal with it and Denmark.

Geopolitical Business Impact

•The Kremlin has moved to seize the Russian assets of Nestlé and French retailer Auchan amid a broader nationalization drive in the country that has seen a surge in seizures of private assets.

If you'd like more detail on any of these stories, or a deeper look at a specific sector or company, let me know!

Citations (13)

1cnbc.comNews and mediaquality 0.85
Stock market news for Sept. 18, 2026
Source excerpt: “Timothy A. Clary | AFP | Getty Images · Bears are taking control of the stock market as oil prices jump and Treasury yields climb. ”
2tradingeconomics.comData and tools
United States Stock Market Index - Quote - Chart - Historical Data - News | Trading Economics
Source excerpt: “The main stock market index of United States, the US500, rose to 7596 points on September 17, 2026, gaining 0.59% from the previous session. Over the ...”
3tradingeconomics.comData and tools
United States Stock Market Index - Quote - Chart - Historical Data - News | Trading Economics
Source excerpt: “US stocks indices closed lower on Wednesday after the Federal Reserve raised interest rates by 25bps, as expected. The S&P 500 fell 0.4% and the Dow s...”
4tradingeconomics.comData and tools
United States Stock Market Index - Quote - Chart - Historical Data - News | Trading Economics
Source excerpt: “Median projections by FOMC members reflected one or two additional hikes expected for this year, aligned with upward revisions to projections on infla...”
5yahoo.comNews and mediaquality 0.69
Yahoo Finance - Stock Market Live, Quotes, Business & Finance News
Source excerpt: “... Warren Buffett is stepping down as chairman of Berkshire Hathaway (BRK-A, BRK-B) — to be replaced by his son Howard — after holding ... U.S. mark...”
6cnbc.comNews and mediaquality 0.85
Stock market news for Sept. 18, 2026
Source excerpt: “... Steel Dynamics, Nucor — Shares of both steel producers fell more than 1.5% after they delivered third-quarter earnings guidance that showed weaker...”
7cnbc.comNews and mediaquality 0.85
Stock market news for Sept. 18, 2026
Source excerpt: “Netflix — The streamer declined more than 3% after Wells Fargo downgraded the stock to underweight. Analysts at the bank said that worrying engagement...”
8bloomberg.comNews and mediaquality 0.84
Bloomberg - Business News, Stock Markets, Finance, Breaking & World News
Source excerpt: “Activist Jana Pushes Cooper Cos. to Replace CEO, Board Chair ... ”
9bloomberg.comNews and mediaquality 0.84
Bloomberg - Business News, Stock Markets, Finance, Breaking & World News
Source excerpt: “The yen pared declines on Friday, with the Nikkei newspaper reporting that the Bank of Japan inquired with market participants about exchange-rate lev...”
10cnn.comNews and mediaquality 0.66
Business News - Latest Headlines on CNN Business | CNN Business
Source excerpt: “Tightening global copper supply, robust demand from the AI boom and uncertainty over tariffs are all whipping up a frenzy for the red metal. It’s send...”
11cnbc.comNews and mediaquality 0.85
Stock Markets, Business News, Financials, Earnings - CNBC
Source excerpt: “Markets ... Quick LinksPro: Tax-free yieldsWarren Buffett steps downIran warNew V-8 enginesMonitoring AIBOJ rate hikeSocial Security reform ... Trump ...”
12cnbc.comNews and mediaquality 0.85
Stock Markets, Business News, Financials, Earnings - CNBC
Source excerpt: “Now comes the hard part · Dow falls Friday and posts worst week since March as Treasury yields rise · Trump says U.S. to build a ‘large Military prese...”
13cnn.comNews and mediaquality 0.66
Business News - Latest Headlines on CNN Business | CNN Business
Source excerpt: “Kremlin seizes Nestlé’s assets in Russia as crackdown on private business grows · The Kremlin has moved to seize the Russian assets of Nestlé and Fren...”