f/overrides/event-backup/cfgrx-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
21996-06-280.054000
32018-12-260.224000
42020-12-041.743000
52018-12-072.856000
62022-12-220.082000
72023-12-210.120000
81997-03-210.040000
92002-06-280.094000
102008-12-290.053000
112009-12-280.109000
122016-12-300.244000
131999-12-033.945000
142004-12-280.035000
152015-12-280.208000
162025-12-049.391000
171997-12-190.027000
181998-12-180.012000
192023-12-071.829000
202024-12-055.318000
212002-10-310.090000
221998-12-115.469000
232007-12-260.040000
242013-12-064.486000
251998-06-240.009000
262021-12-270.073000
272022-12-082.286000
282014-12-057.855000
292016-12-021.389000
302024-12-190.057000
311996-12-310.036000
321997-06-230.057000
332006-12-260.035000
342007-12-040.290000
351998-09-240.008000
362000-12-017.273000
372020-12-280.153000
382019-12-270.198000
392021-12-0310.122000
401996-09-300.055000
411997-09-230.055000
421998-03-310.018000
432014-12-260.249000
441997-12-052.239000
452011-12-230.115000
462012-12-071.039000
472012-12-260.189000
481996-12-021.919000
492017-12-081.636000
502019-12-062.016000
512017-12-220.232000
522025-12-180.056000
532005-12-270.119000
542010-12-270.123000
552013-12-270.189000
562015-12-042.940000