f/overrides/event-backup/axs-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

1.8 KiB

1DateDividends
22022-06-290.430000
32024-03-010.440000
42024-06-280.440000
52007-03-280.165000
62008-09-260.185000
72013-03-260.250000
82018-10-050.390000
92003-12-290.070000
102004-12-290.125000
112015-06-260.290000
122016-12-280.380000
132018-03-280.390000
142023-09-290.440000
152008-03-270.185000
162011-03-290.230000
172014-03-270.270000
182014-06-260.270000
192007-06-270.165000
202008-06-260.185000
212018-06-280.390000
222017-03-290.380000
232017-06-280.380000
242020-10-010.410000
252021-06-280.420000
262003-09-260.070000
272006-06-280.150000
282007-09-260.165000
292014-09-260.270000
302019-06-270.400000
312004-03-290.125000
322010-12-290.230000
332011-06-280.230000
342012-09-280.240000
352013-09-270.250000
362017-10-050.380000
372018-12-280.400000
382020-03-300.410000
392004-09-280.125000
402006-03-290.150000
412006-12-270.165000
422012-12-270.250000
432020-12-300.420000
442022-12-290.440000
452025-03-310.440000
462025-06-300.440000
472005-03-290.150000
482009-03-270.200000
492010-09-280.210000
502022-09-300.430000
512023-06-290.440000
522009-06-260.200000
532011-12-280.240000
542015-03-270.290000
552021-03-300.420000
562021-10-010.420000
572021-12-290.430000
582022-03-300.430000
592023-03-300.440000
602009-09-280.200000
612013-12-270.270000
622017-12-280.390000
632019-03-280.400000
642026-03-310.440000
652005-12-280.150000
662010-06-280.210000
672019-10-020.400000
682023-12-280.440000
692024-09-300.440000
702008-12-290.200000
712013-06-260.250000
722016-03-290.350000
732019-12-300.410000
742015-12-290.350000
752016-09-290.350000
762026-06-300.440000
772004-06-280.125000
782006-09-270.150000
792014-12-290.290000
802015-09-280.290000
812012-06-270.240000
822020-06-260.410000
832024-12-310.440000
842005-06-280.150000
852009-12-290.210000
862010-03-290.210000
872016-06-280.350000
882005-09-280.150000
892007-12-270.185000
902011-09-290.230000
912012-03-280.240000