f/overrides/event-backup/grek-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

455 B

1DateDividends
22016-12-280.456000
32022-06-290.061000
42022-12-290.690000
52024-06-270.122000
62024-12-301.675000
72014-12-290.390000
82013-12-270.081000
92015-12-290.363000
102017-12-280.657000
112020-06-290.132000
122020-12-300.535000
132025-12-301.401000
142011-12-280.093000
152019-06-270.126000
162019-12-300.558000
172021-12-300.572000
182023-06-290.217000
192025-06-270.883000
202026-06-290.551000
212018-12-280.498000
222023-12-280.751000
232012-12-270.111000