f/overrides/event-backup/fgiax-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

875 B

1DateDividends
22013-09-160.102000
32014-09-150.174000
42019-12-300.238000
52023-12-280.248000
62010-12-170.481000
72012-09-200.008000
82025-10-090.035000
92015-06-150.009000
102021-12-300.207000
112018-12-170.215000
122009-12-290.124000
132016-12-290.312000
142020-10-140.041000
152024-12-160.576000
162024-12-300.265000
172025-12-150.896000
182014-12-150.674000
192016-12-150.485000
202018-09-140.143000
212018-12-280.241000
222019-12-160.570000
232020-12-300.111000
242021-10-140.013000
252022-10-130.191000
262010-12-290.155000
272013-12-130.333000
282015-09-160.058000
292021-12-150.622000
302022-12-290.302000
312025-12-300.274000
322008-12-290.077000
332011-12-290.128000
342022-12-150.137000
352013-12-300.164000
362017-12-280.251000
372012-12-280.191000
382014-12-300.146000
392015-12-150.040000
402015-12-300.198000
412017-12-150.387000
422026-05-140.630000
432011-12-150.216000
442012-12-140.160000