f/overrides/event-backup/fca-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

935 B

1DateDividends
22014-09-230.276000
32016-06-220.148000
42019-12-130.241000
52021-03-250.038000
62021-06-240.273000
72023-09-220.450000
82023-12-220.085000
92013-12-180.038000
102025-06-260.343000
112025-12-120.129000
122026-06-250.402000
132025-03-270.026000
142015-06-240.302000
152022-12-230.599000
162012-09-210.133000
172016-12-210.075000
182017-06-220.265000
192023-06-270.522000
202024-12-130.022000
212011-06-210.383000
222012-06-210.234000
232015-09-230.382000
242011-12-210.066000
252017-09-210.135000
262019-09-250.350000
272020-12-240.206000
282022-09-230.356000
292024-09-260.541000
302025-09-250.257000
312015-12-230.163000
322013-09-200.188000
332014-06-240.283000
342018-06-210.239000
352018-09-140.391000
362019-06-140.414000
372020-09-240.457000
382021-12-230.124000
392013-06-210.444000
402024-03-210.103000
412022-06-240.324000
422017-12-210.284000
432018-12-180.102000
442021-09-230.909000
452024-06-270.371000
462016-09-210.254000
472020-06-250.522000