Data
Quantisnow market data
Monthly statistics computed from every SEC filing, analyst rating, insider trade, press release and FINRA short volume file Quantisnow has captured in real time. Each dataset has a methodology, a monthly archive and free CSV and JSON downloads. Reuse them under CC BY 4.0 with a link back.
Quantisnow Insider Buying Index
$1.97B
Insider purchase value, September 2026
In September 2026, insiders bought $1.97B of stock in open-market purchases across 408 companies, up 39.4% from August, against $13.49B of open-market sales, based on 939 Form 4 purchase filings.
Quantisnow Analyst Sentiment Index
206
Upgrades, September 2026
In September 2026, analysts issued 206 upgrades and 205 downgrades on stocks tracked by Quantisnow, an upgrade-to-downgrade ratio of 1.00 (August: 0.76).
Quantisnow SEC Filing Activity Index
20,241
All SEC filings, September 2026
In September 2026, Quantisnow captured 20,241 SEC filings, down 33.3% from August; Form 4 was the most common at 48.6% of the total.
Quantisnow Capital Raising Tracker
287
Offering announcements, September 2026
In September 2026, US-listed companies put out 287 public offering announcements, down 42.3% from August, alongside 432 prospectus supplements and 94 shelf registrations.
Quantisnow Corporate Events Index
138
Mergers and acquisitions, September 2026
In September 2026, companies issued 138 merger and acquisition announcements, down 8.6% from August, 563 leadership change announcements and 580 dividend declarations, according to Quantisnow wire data.
Quantisnow News Volume by Sector
30,847
Company-tagged news items, September 2026
In September 2026, Quantisnow tagged 30,847 news items to 5,165 public companies, down 26.4% from August; Finance drew the most coverage with 20.0% of items.
Quantisnow Short Volume Ratio
51.0%
Market short volume ratio, September 2026
In September 2026, short sales made up 51.0% of FINRA-reported volume across US stocks (August: 50.2%), and 2,663 liquid stocks had a monthly short volume ratio above 50%.
How these numbers are made
Quantisnow ingests SEC EDGAR, FINRA, analyst rating feeds and the major press release wires in real time and tags every item with its companies and event category. These datasets aggregate that archive by calendar month (UTC). Figures are recomputed daily; the current month is shown as month to date.
Each dataset page explains exactly what is counted and what is left out. For questions or custom cuts of the data, write to contact@quantisnow.com.