f/overrides/event-backup/gatax-dividend.csv
Greg Pomerantz bb8e39605e Event-history protection: backup dir, empty-download fallback, docs
Yahoo's 2026 event-feed change (capitalGain events dropped for some
funds; no events at all for terminated tickers) can wipe good event
history on re-download. Defense in depth:

- overrides/event-backup/: last-known-good copy of every dividend/
  capitalGain file (8,192 files, 58 MB); refresh with
  scripts/backup_events.py after each dump update
- data.py event_file(): frozen > data-root (while populated) > backup;
  used by panel reads, verify_official, and the double-listing scanner
- README: capital-gain files are mutual-fund-only in this dump; Yahoo
  has no LT/ST split (tax.py taxes capg at lt_rate; the per-fund split
  would come from fund-company annual tax statements or commercial feeds)
- tests: exact Timestamp .loc keys (pandas 3.x string matching returns a
  Series on large DatetimeIndex)
2026-08-31 21:59:25 -04:00

475 B

1DateDividends
22005-12-282.214000
32007-12-273.220000
42010-12-290.581000
52011-12-281.139000
62013-12-123.217000
72015-12-297.554000
82017-12-275.105000
92004-12-290.849000
102010-04-090.014000
112014-12-293.152000
122018-12-274.944000
132020-12-297.096000
142023-12-273.845000
152008-12-290.280000
162009-12-290.263000
172012-12-273.328000
182021-12-295.738000
192022-12-284.704000
202006-12-272.782000
212016-12-287.048000
222019-12-275.535000
232024-12-276.958000
242025-12-295.720000