f/overrides/event-backup/fikmx-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

615 B

1DateDividends
22025-10-030.151000
32021-03-050.004000
42026-04-010.113000
52018-12-140.258000
62019-06-070.140000
72020-12-180.355000
82023-10-060.134000
92024-07-050.139000
102024-12-200.176000
112019-03-080.035000
122020-09-040.118000
132022-06-030.144000
142024-04-050.115000
152024-10-040.141000
162019-12-200.290000
172020-06-050.091000
182021-06-040.004000
192022-12-160.203000
202023-07-070.150000
212023-12-150.177000
222019-09-060.260000
232021-12-170.172000
242025-12-190.167000
252026-07-100.155000
262020-03-060.011000
272021-09-030.039000
282022-09-090.345000
292023-04-050.132000
302025-04-040.114000
312025-07-110.150000