f/overrides/event-backup/eirl-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
22024-12-170.678000
32015-06-250.453000
42018-12-180.123000
52019-12-160.426000
62024-06-110.828000
72012-06-210.243000
82014-06-250.354000
92023-06-070.459000
102011-06-220.297000
112012-12-180.092000
122016-06-220.303000
132020-06-150.239000
142010-12-210.412000
152011-12-200.115000
162023-12-200.150000
172025-06-161.247000
182014-12-170.423000
192016-12-210.201000
202017-12-190.342000
212010-06-230.034000
222018-06-190.439000
232026-06-151.144000
242013-06-270.265000
252013-12-180.326000
262020-12-140.012000
272021-12-130.130000
282022-06-090.518000
292025-12-160.743000
302015-12-210.253000
312017-06-200.348000
322019-06-170.551000
332021-06-100.334000