AAER dates from SEC

A data set containing dates and descriptions for AAERs.

Usage

from era_pl import load_data

data = load_data("aaer_dates")

Use from era_py import load_data for a pandas dataframe.

Format

3,386 rows and 4 columns. Column types below describe the stored Parquet data; loaders also restore categories and date types using the packaged metadata.

Column Stored type Description
aaer_num string AAER number
aaer_date date32[day] Date
aaer_desc string Description
year int32 Year of AAER

Details

The SEC index was refreshed through October 8, 2026. Exact duplicate rows are removed; distinct entries sharing an AAER number are retained. Source-backed corrections retain November 16, 1999 for AAER-1209 and restore AAER-1470 dated October 23, 2001. Historical entries missing from the current index are preserved, including three intentionally omitted numbers with missing dates. The malformed historical identifier AAER-x2218 is replaced by AAER-2218. Raw snapshots, historical supplements, and the correction table with release links are maintained in data-raw; see also the refresh investigation (https://github.com/iangow/farr/issues/27). Index dates have not all been checked against the underlying releases.

Related R documentation.