Assembling the screener…
Free
The full exposure screener, the Weekend Tape and Monday-open record, basis and depeg flags, liquidity reality, implied borrow, tracking error, and corp-action forensics. Share the wtf moments; cite the numbers.
Paid, later
Historical tick archive, bulk exports, and the analytics quants actually pay for. One thing will never be for sale: listings. Venues can't pay to look better here.