f/overrides/event-backup/etgix-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

435 B

1DateDividends
22021-12-094.003000
32023-12-071.718000
42006-12-270.549000
52008-03-111.183000
62018-08-090.376000
72007-12-243.188000
82014-12-290.510000
92016-12-280.148000
102017-07-260.194000
112017-12-271.029000
122020-08-180.096000
132025-12-044.953000
142006-03-280.015000
152007-03-130.329000
162011-03-150.037000
172015-05-210.205000
182019-08-080.956000
192022-12-086.669000
202024-12-051.629000
212005-12-270.518000
222010-04-300.031000