f/overrides/event-backup/egrix-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

395 B

1DateDividends
22014-12-190.368000
32016-12-290.180000
42019-01-310.075000
52019-03-290.075000
62024-12-300.622000
72020-12-300.602000
82022-12-290.461000
92023-12-280.341000
102010-12-290.018000
112012-12-200.532000
122015-12-300.648000
132019-04-300.075000
142019-12-300.434000
152011-12-280.285000
162018-12-280.006000
172019-02-280.075000
182025-12-300.778000
192017-12-280.334000
202021-12-300.500000