f/overrides/event-backup/dxr-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

415 B

1DateDividends
22008-10-310.250000
32009-05-270.100000
42011-05-270.150000
51998-04-280.125000
62008-07-240.250000
72008-12-101.000000
82009-08-210.250000
92009-12-081.000000
102010-09-130.250000
112010-12-140.650000
122011-11-160.100000
132012-12-070.100000
142014-12-040.030000
151997-04-280.500000
162012-08-100.100000
172013-12-050.050000
182018-01-050.030000
192010-05-270.100000
202015-12-180.040000
212016-12-200.030000