f/overrides/event-backup/kbe-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

1.6 KiB

1DateDividends
22008-03-200.415000
32010-03-190.032000
42014-03-210.106000
52015-12-180.175000
62020-06-220.279000
72005-12-160.131000
82007-09-210.420000
92025-06-230.366000
102022-12-190.420000
112023-09-180.368000
122010-09-170.033000
132011-12-160.150000
142013-09-200.119000
152020-12-210.299000
162022-06-210.286000
172026-03-230.336000
182007-06-151.153000
192008-06-200.422000
202015-09-180.142000
212019-09-200.265000
222009-09-180.079000
232014-06-200.128000
242015-06-190.139000
252016-12-160.184000
262022-09-190.297000
272023-03-200.266000
282010-06-180.033000
292013-12-200.112000
302009-03-200.142000
312012-09-210.106000
322013-03-150.105000
332018-12-210.262000
342024-03-180.311000
352006-09-150.471000
362007-03-160.395000
372011-03-180.046000
382011-06-170.086000
392012-12-210.207000
402018-09-210.225000
412020-09-210.281000
422021-12-200.360000
432008-09-190.373000
442009-06-190.121000
452018-03-160.159000
462019-03-150.212000
472024-06-240.331000
482024-12-230.338000
492010-12-170.035000
502012-06-150.110000
512011-09-160.092000
522019-06-210.292000
532025-12-220.409000
542021-03-220.320000
552021-06-210.242000
562017-09-150.165000
572017-12-150.213000
582018-06-150.170000
592019-12-200.333000
602020-03-230.162000
612023-12-180.343000
622006-12-150.750000
632017-03-170.110000
642023-06-200.301000
652024-09-230.325000
662007-12-210.515000
672009-12-180.016000
682016-03-180.127000
692017-06-160.153000
702021-09-200.257000
712022-03-210.345000
722025-09-220.371000
732026-06-220.351000
742006-06-160.452000
752014-12-190.167000
762012-03-160.071000
772015-03-200.117000
782006-03-170.303000
792008-12-190.168000
802016-06-170.146000
812016-09-160.148000
822025-03-240.377000
832013-06-210.120000
842014-09-190.133000