f/overrides/event-backup/jxi-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

795 B

1DateDividends
22022-06-090.849000
32009-12-210.563000
42011-12-190.821000
52014-06-241.015000
62018-12-180.720000
72007-12-240.538000
82017-06-200.943000
92019-12-160.961000
102024-06-110.989000
112010-06-211.217000
122020-06-150.585000
132021-12-130.979000
142015-12-210.664000
152021-06-100.823000
162006-12-210.332000
172011-06-211.137000
182013-06-251.046000
192013-12-170.855000
202023-12-201.136000
212024-12-170.950000
222025-12-160.920000
232008-12-221.408000
242016-06-211.086000
252016-12-221.046000
262019-06-171.054000
272008-06-231.046000
282010-12-200.693000
292022-12-131.037000
302025-06-161.094000
312017-12-210.850000
322018-06-190.830000
332020-12-141.009000
342023-06-070.956000
352009-06-221.113000
362012-06-200.995000
372014-12-190.731000
382015-06-240.998000
392012-12-170.734000
402026-06-151.127000