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What is the Consumer Price Index (CPI)?

What is the Consumer Price Index(CPI)? The Consumer Price Index (CPI) is a measure of the change in prices paid by consumers for a basket of goods and services. It is one of the most widely followed economic indicators, and it is used by investors to gauge inflation and make investment decisions. How is the CPI calculated? The CPI is calculated by the Bureau of Labor Statistics (BLS). The BLS surveys households across the United States to collect data on the prices they pay for goods and services. This data is then used to create a "basket" of goods and services that represents the spending habits of the average American household. The BLS calculates the CPI by comparing the prices in the basket of goods and services in a given month to the prices in the same basket of goods and services in a base year. The base year is usually 2000. How does the CPI affect investing? The CPI is an important indicator of inflation. When the CPI rises, it means that the cost of living is incre...

3 Hang Seng Tech Signals Driving Today's Session

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Photo by Matthieu Gouiffes on Unsplash 📅 September 21, 2026 · 04:06 AM EDT  |  Wall Street Daily Briefing Hong Kong Market Overview Hong Kong stocks experienced a divergence today, driven by a sharp tech-led rally alongside modest retreats in defensive financials. While overall index levels were unavailable at the close, strong buying in consumer electronics and pharmaceutical gainers dominated the session, providing an early risk-on signal to global capital allocators before the Western opening. During the September 21, 2026 session, the Hong Kong market demonstrated a highly bifurcated trading pattern. Although the broad Hang Seng Index level and exact daily volume were unavailable at the final bell, individual equities traced out a clear risk-seeking path. Tech giants led the charge, with Xiaomi Corporation ( 1810.HK ) advancing 4.24% to close at $27.52 , acting as a primary locomotive for the broader Hang Seng Tech ecosystem. T...

S&P 500: CAT Stock Deep Dive: Diesel Spikes Test 2026

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Photo by Aditya Vyas on Unsplash 📅 September 20, 2026 · 10:10 AM EDT  |  Wall Street Daily Briefing The financial markets on September 20, 2026, continue to highlight a profound divergence between digital valuations and real-economy assets. While speculative tech and media conglomerates grapple with cooling retail demand—as demonstrated by Netflix (NFLX) falling -4.67% to $71.79 and Meta (META) sliding -2.43% to $665.75 —the physical world is asserting its dominance. This rotation is driven by escalating structural realities: rising energy costs, global grid upgrades, and geopolitical friction in supply chains. In this context, Caterpillar Inc. (CAT) has emerged as an instructive case study. Rising +1.30% to close at $808.99 , CAT's upward move points to a broader reallocation of capital toward physical infrastructure. This US stock market analysis dives deep into how Caterpillar is navigating record diesel prices and why its ma...

S&P 500 Close: Semis Surge as Software and Value Lag

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Photo by tommao wang on Unsplash 📅 September 18, 2026 · 08:09 PM EDT  |  Wall Street Daily Briefing Market Overview — September 18, 2026 US stocks closed with stark sector divergence on September 18, 2026, as capital rotated aggressively into semiconductor infrastructure while shedding enterprise software and classic defensive value positions. At the Wall Street close, market dynamics highlighted a distinct bifurcation in tech leadership. Semiconductor heavyweights powered ahead, led by Intel (INTC) soaring +7.67% to $108.80 and Advanced Micro Devices (AMD) jumping +6.36% to $545.09 . Broad hardware momentum remained robust as NVIDIA (NVDA) advanced +2.54% to $219.34 alongside Broadcom (AVGO) climbing +2.29% to close at $347.30 . Conversely, non-hardware sectors faced localized selling pressure. Defensive heavyweight Verizon Communications (VZ) fell -2.87% to $48.33 , while enterprise software firm Salesforce (CRM) lost...

Pre-Market: Mortgage Bonds Point to Early Pressure

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Photo by Andy Kennedy on Unsplash 📅 September 18, 2026 · 09:25 AM EDT  |  Wall Street Daily Briefing Pre-Market Snapshot US stock market open today is likely to see initial headwinds, with S&P 500 and NASDAQ futures trading modestly lower this morning. Overnight, Asian markets offered mixed signals, while European bourses largely tracked sideways. Concerns over mortgage bond deterioration, as highlighted by Wall Street experts, appear to be a primary drag, setting a cautious tone ahead of the opening bell. As today’s US session approaches, S&P 500 futures are tracking lower by 0.35% , hovering around the 5,305 level, while NASDAQ 100 futures register a steeper decline of 0.60% . Dow futures show a more contained dip, down roughly 0.20% . This pre-market weakness tracks against a backdrop of varied overnight performance: Asia's Nikkei 225 closed up 0.72% , but the Hang Seng fell 1.15% . European markets, specifically the Euro Sto...

Hang Seng Gains: Alibaba Surges While Tech Diverges

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Photo by Alan Arseven on Unsplash 📅 September 18, 2026 · 03:41 AM EDT  |  Wall Street Daily Briefing Hong Kong Market Overview The Hong Kong stock market today displayed sharp internal divergence as heavyweight digital commerce platforms pulled ahead while select gaming and streaming titans experienced selling pressure. Session dynamics were primarily driven by rebalancing across mega-cap internet names alongside global fixed-income volatility following extended pressures on US Treasury yields. Capital flows across the Hong Kong session highlighted a distinct split within the broader technology space rather than a uniform directional sweep. Market participants navigated shifting macro sentiment as global bond benchmarks recorded notable historical stress. In equity action, Alibaba Group Holding (9988.HK) led major advancers with a prominent gain of +3.81% to close at $109.1 , backed by institutional rotation toward cash-generative ...

S&P 500 Close: Chips Rally While Energy Drops

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Photo by isaac sloman on Unsplash 📅 September 17, 2026 · 08:08 PM EDT  |  Wall Street Daily Briefing Market Overview — September 17, 2026 At the Wall Street close on September 17, 2026, divergent capital flows highlighted a sharp split between semiconductor momentum and defensive profit-taking across traditional sectors. Chipmakers spearheaded gains as Intel surged +4.03% to close at $101.05 , while Nvidia added +0.82% to settle at $213.90 . Conversely, mega-cap financial and energy names faced heavy selling pressure, with Goldman Sachs falling -3.96% to $937.98 and Exxon Mobil dropping -3.54% to $163.32 . Meanwhile, IBM retreated -4.38% to $237.49 . This rotation unfolded against a dramatic macroeconomic backdrop where 10-year Treasury notes experienced their worst multi-year run in over 100 years, prompting income investors to lock in yields as the Federal Reserve maintains an elevated rate path across 2 main policy meeti...

Pre-Market: Awaiting Fresh Catalysts

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Photo by David Vives on Unsplash 📅 September 17, 2026 · 09:13 AM EDT  |  Wall Street Daily Briefing Pre-Market Snapshot Today's US pre-market appears poised for a cautious open, with directional clarity constrained by the absence of specific real-time futures data. Global sentiment from overnight sessions is less transparent without concrete numbers, but investor focus undoubtedly remains on the implications of AI advancements and evolving market breadth. The "winner-take-all" debate underscored in recent headlines will likely frame early trading as participants assess where capital flows might pivot. Without explicit S&P 500, NASDAQ, or Dow futures data provided, the immediate pre-market picture lacks specific price signals. Similarly, a clear read on overnight performance from Asia and European markets, including the Nikkei, Hang Seng, KOSPI, and broader European indices, is unavailable, preventing a direct comparison or ...