About btlines

What btlines does

btlines compares each company report or earnings call with the previous one and shows, in a few seconds, what changed: the main figures, how management spoke, what stood out, and which topics came and went. It covers about 1,350 companies: US large caps and Polish companies listed on the GPW and NewConnect.

Where the data comes from

Figures come from the companies' own filings: SEC filings for US companies (10-Q and 10-K), periodic reports published via PAP Biznes for Polish companies, and ROIC.AI for some fundamentals. Earnings-call transcripts: since October 2026 we transcribe new calls ourselves from their recordings; earlier calls come from ROIC.AI. Share prices come from Yahoo Finance. Every company page names its sources.

Partly. Summaries, translations, the "What stood out" line and the "Why" notes are written by a language model running on our own machine, from the report's own sentences. Every AI sentence is checked before it is published: numbers must appear in the source, units must match, and anything that fails is left out. Figures are read from the filings, not generated, and the tone score uses no AI at all. New call transcripts are made by speech recognition (Whisper) on our own machine, which also tells the speakers apart; names of people can be misspelled.

Accounts and languages

No. Browsing is free and needs no account. A free account (email link or Google) lets you save companies to your favourites and ask for a fuller analysis of a company that only has a basic page.

Yes — use the PL switch at the top. Polish companies have fully Polish pages; for other companies the interface, labels and figures are in Polish and the summaries stay in English.

Contact

Write to [email protected] with the company and what looks wrong. We answer within 14 days.

More: FAQ · Methodology · Terms · Privacy