f/overrides/event-backup/fxi-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

815 B

1DateDividends
22021-06-100.151000
32022-06-090.146000
42022-12-130.593000
52023-06-070.154000
62024-06-110.085000
72008-06-230.561667
82009-06-220.326000
92014-06-240.540000
102023-12-200.607000
112025-12-160.416000
122026-06-150.263000
132012-12-170.086000
142021-12-130.434000
152007-12-240.696667
162010-12-200.169000
172012-06-200.851000
182020-06-150.333000
192020-12-140.684000
202005-12-230.417333
212011-12-190.079000
222015-12-210.775000
232013-12-170.174000
242018-12-180.446000
252019-12-160.788000
262025-06-160.509000
272008-12-220.208000
282015-06-240.249000
292016-12-220.689000
302014-12-190.506000
312016-06-210.244000
322017-06-200.176000
332018-06-190.605000
342019-06-170.407000
352006-12-210.435000
362009-12-210.222000
372013-06-250.839000
382024-12-170.451000
392010-06-210.459000
402011-06-210.686000
412017-12-210.892000