f/overrides/event-backup/gaiox-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

1.1 KiB

1DateDividends
22023-03-290.063000
32018-12-270.649000
42020-06-250.060000
52022-09-280.057000
62024-06-250.085000
72017-06-220.063000
82021-06-280.062000
92018-09-250.049000
102022-06-280.067000
112012-09-260.028000
122013-12-270.112000
132017-09-210.045000
142012-12-270.128000
152014-03-260.066000
162016-12-280.425000
172022-03-290.057000
182024-09-250.065000
192015-03-250.065000
202016-06-230.047000
212016-09-220.047000
222017-12-270.359000
232021-12-290.820000
242012-06-270.052000
252014-12-290.308000
262018-06-260.069000
272019-09-250.060000
282020-12-230.518000
292022-12-280.794000
302025-12-291.024000
312014-09-250.053000
322018-03-260.052000
332019-03-260.060000
342020-09-250.053000
352021-03-290.050000
362026-06-250.111000
372013-06-260.066000
382015-09-240.034000
392025-06-250.082000
402021-09-280.047000
412024-12-270.712000
422024-03-250.056000
432026-03-260.045000
442020-03-260.061000
452023-09-270.067000
462023-12-270.289000
472015-06-250.049000
482019-06-250.072000
492014-06-250.066000
502019-12-270.662000
512023-06-280.072000
522015-12-290.438000
532016-03-240.059000
542017-03-230.056000
552025-03-260.058000
562025-09-250.066000
572013-03-270.048000
582013-09-260.039000