f/overrides/event-backup/lit-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

495 B

1DateDividends
22023-12-280.358000
32024-06-270.250000
42025-06-270.137000
52011-12-280.036000
62012-12-270.694000
72019-06-270.223000
82020-12-300.088000
92021-12-300.148000
102026-06-290.325000
112022-12-290.517000
122015-12-290.048000
132019-12-300.282000
142020-06-290.161000
152021-06-290.036000
162022-06-290.062000
172013-12-270.084000
182017-12-281.262000
192023-06-290.208000
202025-12-300.178000
212010-12-290.528000
222014-12-290.238000
232016-12-280.524000
242018-12-280.679000
252024-12-300.130000