FINRA Margin Debt Statistics, Explained
FINRA margin debt statistics explained: the rule behind the filing, the third week release, the four to seven week lag, and how to read the history since 1997.
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Why Stock Quotes Are Delayed 15 Minutes
Why are stock quotes delayed 15 minutes? How exchange data licensing sets the rule, and what a quarter hour of staleness actually costs on real prices.
Dividend Increases & Cuts This Week
Dividend increases and cuts this week: which US companies just raised their regular payout, which just cut it, and the stock-split trap that fakes a cut.
Biggest Stock Movers This Month
The biggest stock movers this month, gainers and losers ranked from the exchange tape, with the dollars traded beside every move and every filter spelled out.
Stocks at 52-Week Highs and Lows
See which stocks closed at a 52-week high and which sit at 52-week lows, screened from the exchange tape, with the count of each as a breadth reading.
Highest IV Rank Stocks Right Now
The highest IV rank stocks right now, scored against each name's own 52-week implied volatility range, with IV percentile beside it and the method shown.
Free Stock Market Data API, No Key Required
A free stock market data API with no key and no signup: seven curated JSON queries over US equities and options, cached at the edge and open to AI agents.
Free SQL API for Stock Market Data
A free SQL API for stock market data: write real SQL against 22 years of US equities, dividends, and fundamentals. 100 queries a day, no credit card.
Highest Implied Volatility Stocks Right Now
The US stocks whose options carry the highest implied volatility right now, ranked from real closing prices, with SPY as the calm benchmark for scale.
Upcoming Stock Splits Calendar
A forward-looking calendar of announced US stock splits, forward and reverse, with each ratio and effective date. Refreshed weekly, plus the monthly count.
Which Companies Cut Their Dividends?
Dividend cuts are the income investor's core risk. Here are notable cuts among major US companies over the past six years, from the 2020 wave to recent resets.
How Markets Recover From Crashes
Every S&P 500 crash since 2016 recovered. We charted the market's underwater history: how deep the drawdowns ran, how often, and where it stands now.
What Missing the Best Days Costs
Time in the market beats timing it: missing the best days since 2016 turned a big SPY gain into a small one, and the best days hide inside the worst selloffs.
Buy When Others Are Fearful: The Data
Warren Buffett said be greedy when others are fearful. We built a fear gauge from real news sentiment and tested whether fearful days beat the market.
Recent Stock Splits (Forward and Reverse)
The most recent US stock splits, forward and reverse, with each ratio and date. Refreshed weekly, plus why reverse splits far outnumber forward ones.
Biggest Stock Gainers and Losers This Week
The biggest US stock gainers and losers this week among the most heavily traded names, measured from the exchange tape and refreshed weekly with each move.
Weekly Market Recap: The Week in Numbers
The past week in the US market, measured: index and sector returns, the biggest movers, volume leaders, and breadth, every figure from a stored query.
Does a Stock Go Up After a Split?
Does a stock go up after a stock split? A data study of forward splits since 2016: the run-up comes before, and the median stock trailed the market afterward.
How Big Is the OPRA Options Quote Feed?
How big is the options quote feed? We count one full day of OPRA-scale NBBO updates in our warehouse and measure it against the entire stock quote tape.