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Guides on Market Data & AI Workflows

Practical guides on financial data for AI, MCP, APIs, and stock research.

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Topics:
AllAnnouncementsTutorialsMarket InsightsProduct UpdatesCompany ProfilesData & APIs
Announcements3 guidesNew coverage, API releases, and platform news from the Vantafin team.Tutorials7 guidesPractical walkthroughs for REST, WebSocket, MCP, and research workflows.Market Insights26 guidesResearch frameworks grounded in filings, fundamentals, and market data.Product Updates3 guidesWhat shipped in the web app, screener, alerts, and AI tools.Company Profiles4 guidesTicker spotlights and how to research companies with Vantafin data.Data & APIs2 guidesCoverage, endpoints, streams, and MCP tools for builders.
China DUV Chip Fear Wipes $1 Trillion From Memory Stocks: NVDA, MU, WDC Plunge - MEMORY SELLOFF (Market Insights)
Jul 28, 2026Market Insights
NVDA+0.69(+0.35%)
MU-67.47(-7.50%)+3

China DUV Chip Fear Wipes $1 Trillion From Memory Stocks: NVDA, MU, WDC Plunge

Over $1 trillion in U.S. stock value evaporated on July 27, 2026, as China entered mass production of domestic DUV lithography systems. Six memory names shed $541 billion combined. NVDA fell 8.2% in a single session.

BMNR Stock Surges 9.6% as Bitmine Accelerates $4B Buyback, Tom Lee Eyes $2,500 Ethereum - BMNR (Market Insights)
Jul 28, 2026Market Insights
BMNR-0.21(-1.17%)

BMNR Stock Surges 9.6% as Bitmine Accelerates $4B Buyback, Tom Lee Eyes $2,500 Ethereum

Bitmine Immersion Technologies rallied on July 28 after accelerating its share repurchase program and accumulating more ETH. Tom Lee set a $2,500 price target for Ethereum. Key data, holdings, and what it means.

NVDA and Chip Stocks Extend Rout: Why Analysts Say OpenAI Deal Fears Are Overblown - CHIP STOCKS (Market Insights)
Jul 28, 2026Market Insights
NVDA+0.69(+0.35%)
AMD-36.45(-7.36%)+2

NVDA and Chip Stocks Extend Rout: Why Analysts Say OpenAI Deal Fears Are Overblown

Chip stocks slid for a second day on fears that Nvidia's OpenAI backstop creates circular risk. Morningstar analysts disagree, pointing to AI infrastructure demand that remains compute-constrained.

INLF Surges 52% on Ultra-Low Post-Split Float: What Traders Need to Know - INLF (Market Insights)
Jul 28, 2026Market Insights
INLF+1.77(+53.92%)

INLF Surges 52% on Ultra-Low Post-Split Float: What Traders Need to Know

INLF jumped ~52% premarket July 28 after a 1-for-200 reverse split created a micro-float. Learn why low-float stocks like INLF can spike fast and how to track them on Vantafin.

CISS Short Squeeze: 116% Premarket Rebound After Dilutive Offering - CISS (Market Insights)
Jul 28, 2026Market Insights
CISS+0.07(+70.21%)

CISS Short Squeeze: 116% Premarket Rebound After Dilutive Offering

C3is (CISS) crashed 80% on a $6M offering, then surged 115%+ premarket as nano float triggered short covering. Technical analysis of the volatile microcap move.

CRML Stock Faces Worst Month Since 2025 as Tanbreez Project Advances - CRML (Market Insights)
Jul 28, 2026Market Insights
CRML-0.43(-7.12%)

CRML Stock Faces Worst Month Since 2025 as Tanbreez Project Advances

Critical Metals stock down 51% in July 2026 despite Tanbreez drilling progress, Kenya tender advancement, and analyst support. Here is what investors need to know.

AMKR Stock Tumbles as Q3 Guidance Misses: What Investors Need to Know - AMKR (Market Insights)
Jul 28, 2026Market Insights
AMKR-13.76(-22.67%)

AMKR Stock Tumbles as Q3 Guidance Misses: What Investors Need to Know

Amkor Technology beat Q2 estimates but its Q3 revenue forecast of $1.95B-$2.05B falls below Street consensus. Communications headwinds tied to a Vietnam SiP migration are the main culprit.

JNJ Stock Rallies on $5.5B Talc Settlement: What Investors Need to Know - JNJ (Market Insights)
Jul 28, 2026Market Insights
JNJ+1.20(+0.45%)

JNJ Stock Rallies on $5.5B Talc Settlement: What Investors Need to Know

Johnson & Johnson commits $5.5 billion to settle 76,000 ovarian cancer lawsuits. JNJ stock surged 4% after hours. Here is the full breakdown for investors.

Memory Stocks Dip: MU, SNDK, WDC Fall as Broadcom AI Forecast Misses - MEMORY STOCKS (Market Insights)
Jul 28, 2026Market Insights
MU-67.47(-7.50%)
SNDK-149.23(-11.67%)+3

Memory Stocks Dip: MU, SNDK, WDC Fall as Broadcom AI Forecast Misses

Micron, SanDisk, and Western Digital stocks tumble as Broadcom's AI chip guidance disappoints. MU drops 11%, SNDK falls 29%, and WDC slides 16% in a broad semiconductor selloff.