Corpus availability

NL Analytics searches English earnings-call transcripts. This page describes what the corpus contains and how to check whether your sample is available.

Current scope

The corpus consists of English earnings-call transcripts available in NL Analytics. You cannot upload your own documents or search other content types.

Check sample availability

Aggregate availability can hide gaps in exactly the firms, countries, sectors, or years your design needs. Before relying on a measure:

Define the target sample: the firms, countries, sectors, and time period the analysis is about.
Run an exploratory Risk Tool search over the relevant date range.
Read the dataset results overview: which keywords, companies, and sectors drive the matches, and how many firms and transcripts were searched.
Export the call-level dataset and tabulate calls by headquarterscountry, economic_sector, and date_q in your analysis tool.
Compare those tabulations against the target sample. Keep zero rows; calls with no matches are part of the sample, and dropping them overstates availability.
Record what you find: the date range, the sample definition, the export date, any missing availability, and any restrictions you introduce downstream.

A topic can appear often in the broad corpus and still be too sparse, or too concentrated in a few firms, to support variation in the target sample. If availability is thin, consider widening the date range, broadening the query, or narrowing the research question.

Refresh timing

The corpus refreshes roughly every two weeks, typically every 13 to 16 days. Treat the timing as approximate rather than guaranteed.

When publishing research, record the corpus statement and export date used for the analysis.

Future content types

NL Analytics materials discuss possible future expansion to annual reports, quarterly reports, job postings, patent filings, or user-owned documents. None of these are currently available in the product; the corpus today is earnings calls only.