f/overrides/event-backup/fiofx-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

655 B

1DateDividends
22015-12-290.298000
32023-12-280.447000
42009-12-280.110000
52011-12-290.333000
62016-05-130.006000
72016-12-280.315000
82017-12-280.340000
92018-12-280.369000
102020-12-300.360000
112021-12-300.412000
122012-12-280.222000
132013-05-030.010000
142025-12-300.595000
152022-12-290.384000
162014-05-090.221000
172020-05-080.061000
182022-05-130.016000
192024-05-100.010000
202010-12-300.157000
212011-05-060.015000
222024-12-300.511000
232012-05-040.008000
242023-05-120.004000
252017-05-120.020000
262019-05-100.040000
272014-12-290.297000
282015-05-150.006000
292025-05-090.031000
302019-12-302.779000
312021-05-140.060000
322018-05-110.029000
332026-05-080.062000