f/overrides/event-backup/dgs-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

1.3 KiB

1DateDividends
22011-12-210.221000
32024-12-260.310000
42010-09-200.452000
52014-06-230.453000
62018-12-240.308000
72024-03-220.050000
82025-03-260.075000
92025-06-250.525000
102018-06-250.639000
112009-09-210.382000
122012-03-260.069000
132023-03-270.115000
142022-12-230.314000
152024-09-250.605000
162008-12-221.222000
172012-12-240.190000
182013-06-240.805000
192015-09-210.661000
202016-06-200.420000
212019-03-260.100000
222019-12-230.382000
232023-09-250.780000
242026-03-260.200000
252009-03-230.098000
262009-12-210.412000
272014-09-220.583000
282025-12-260.579000
292017-09-260.675000
302019-06-240.655000
312022-03-250.140000
322022-09-260.825000
332020-09-220.630000
342015-12-210.112000
352010-06-280.549000
362016-12-230.244000
372020-06-230.580000
382014-03-240.091000
392014-12-190.252000
402015-06-220.377000
412021-03-250.109000
422023-06-260.920000
432025-09-250.795000
442010-12-220.289000
452011-09-260.682000
462012-06-250.476000
472013-12-240.253000
482023-12-220.455000
492017-12-260.229000
502019-09-240.750000
512009-06-220.332000
522011-03-210.105000
532011-06-220.685000
542013-03-220.069000
552013-09-230.464000
562017-06-260.560000
572021-06-240.755000
582026-06-250.840000
592021-09-240.650000
602022-06-241.070000
612024-06-250.680000
622021-12-270.590000
632007-12-170.048000
642012-09-240.723000
652016-09-260.675000
662018-09-250.831000
672020-03-240.063000
682020-12-210.488000