f/overrides/event-backup/fflex-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
22025-12-300.411000
32017-05-120.051000
42018-12-280.234000
52019-05-100.029000
62019-12-300.861000
72021-05-140.043000
82023-12-280.311000
92024-12-300.351000
102017-12-280.215000
112021-12-300.292000
122025-05-090.016000
132026-05-080.004000
142015-12-290.178000
152016-05-130.022000
162016-12-280.232000
172020-05-080.034000
182022-05-130.013000
192022-12-290.266000
202024-05-100.008000
212018-05-110.035000
222020-12-300.245000
232023-05-120.003000