About Flash Finance US

Flash Finance US is the United States edition of flashfinance.news. It reads the whole US large, mid and small-cap market after every close and publishes what it finds — chart patterns, screens, breadth, rotation, filings and insider activity — free and without sign-up.

Coverage

Every member of the S&P 500, S&P MidCap 400 and S&P SmallCap 600 (together, the S&P Composite 1500), plus any Nasdaq-100 company outside it — currently 1517 stocks — alongside the major indices, the SPDR sector ETFs and key rates, commodities and currencies.

Data sources

• Prices — end-of-day, split-adjusted daily OHLCV from public market data, refreshed after each US session. Nothing on this site is real-time.
• Financial statements — income statement, balance sheet and cash flow straight from each company's XBRL financial data on SEC EDGAR. Quarterly figures are rebuilt from year-to-date totals (Q4 = full year minus nine months).
• Shares outstanding — the cover-page share count from each company's latest SEC filing, used for market capitalisation.
• SEC filings & insider trades — EDGAR's live filing feed; Form 4 transactions parsed from the filed XML.
• Earnings, dividend, IPO, economic and stock-split calendars — Nasdaq's public calendar data.
• Economic indicators — Federal Reserve Bank of St. Louis (FRED), republishing the official releases of the BLS, BEA, the Federal Reserve, Freddie Mac and others.
• US auto sales — the Bureau of Economic Analysis's light-vehicle and total vehicle sales (seasonally adjusted annual rate and actual units), BLS vehicle prices, Federal Reserve auto loan rates and assemblies, and Census dealer sales, via FRED. Monthly reports →
• Everyday prices — the Bureau of Labor Statistics' average retail prices (U.S. city average) for food and household energy, and the Energy Information Administration's weekly gasoline and diesel prices, via FRED. Each series is checked to be the item it is labelled as before it is published. What things cost →
• Housing market — Realtor.com's monthly listing data, Census new-home sales and construction, S&P Case-Shiller home prices, Freddie Mac mortgage rates and BLS rent inflation, via FRED. Monthly report →
• State economies — for all 50 states and DC: BLS unemployment rates and nonfarm payrolls, the FHFA house price index and Census median household income, via FRED; each series is checked to name its state. Unemployment by state →
• Mortgage rates & Fed decisions — Freddie Mac's weekly survey (30-year since 1971, 15-year since 1991) and the Federal Reserve's target rate and range history (H.15), via FRED; the next decision date comes from the economic calendar. Mortgage rates → Fed decisions →
• Inflation calculator — the BLS consumer price index (CPI-U) back to 1913, via FRED. Calculator →
• Social Security COLA — computed from the BLS CPI-W with the Social Security Administration's formula (third-quarter averages); the computation must reproduce SSA's announced COLAs for 2016–2026 before anything is published. COLA →
• Recession tracker — eight indicators from the data above (Sahm rule, yield curve, recession-probability model, GDP, payrolls, jobless claims, high-yield spread, S&P 500 drawdown), each scored by a rule of thumb stated on the page. Tracker →
• Congressional stock trades — Periodic Transaction Reports published by the Clerk of the U.S. House of Representatives, read automatically from electronically filed reports. A trade is listed only when every field checks out (a known ticker, a stock or stock option, valid dates and one of the form's amount ranges); each links to the original report. Congress trades →
• Corrections & bear markets — full daily closing history of the S&P 500 (from 1950), Nasdaq Composite (1971), Russell 2000 (1987) and Dow (1992, as far back as the public source goes); a correction is a 10% fall from a record close, a bear market 20%. The same history gives the returns by year, returns by presidential term and the biggest one-day moves (price only, dividends excluded). Tracker →
• Market holidays & hours — computed from the New York Stock Exchange's holiday and early-close rules, which Nasdaq shares. Calendar →
• Index membership & sectors — public constituent lists with GICS sector classification.

Methodology

Technical rating. Nine moving averages (price above = buy) and eight oscillators (RSI, Stochastic, CCI, ADX/DI, MACD, Williams %R, momentum, SuperTrend) each vote buy, sell or neutral; the two groups are averaged into a score from −1 to +1: Strong Sell, Sell, Neutral, Buy, Strong Buy.

Chart patterns. A percentage ZigZag reduces each price series to alternating swings; 17 textbook formations are tested with explicit geometry rules on daily (2 years) and weekly (7 years) candles, and only the best fit above a quality threshold is published per stock and timeframe. Breakout state is read from the latest close backwards, so a break that has been given back is not reported as live.

Ratios. P/E uses the sum of the last four quarters of diluted EPS; margins, ROE and growth use trailing-twelve-month figures; dividend yield uses dividends actually paid over the last 12 months.

Breadth & rotation. Breadth counts members above their 50/200-day averages, advancers, decliners and new highs/lows. The rotation graph uses the common normalised approximation of relative strength and its momentum on weekly closes versus SPY.

Market Mood Index. Seven indicators (momentum, new highs, breadth, the advance/decline trend, the VIX, safe-haven and junk-bond demand) are each scored 0-100 by where today's reading ranks within its own past year; the index is their average. How it works →

Where AI is used

Two things on the site can be written with AI (Anthropic's Claude since November 2026, Google's Gemini before that): the plain-English briefs of SEC 8-K filings, which are summaries of the filing text, and the daily market recap, which is written only from that day's published closing numbers and is checked so it cannot state a figure that is not in the data — otherwise a fixed template is published instead. Both are labelled. Every other number, screen, rating and pattern on the site is computed by fixed rules, with no AI involved. Our editorial policy covers sources, corrections and independence.

What this site does not do

It does not give personalised advice and does not offer real-time quotes. AI summaries can contain mistakes; read the filing before acting on anything.

Contact

Spotted an error or have an idea? Email contact@flashfinanceusa.com or see the contact page.