f/overrides/event-backup/asvix-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

1.9 KiB

1DateDividends
22016-12-130.424000
32025-03-250.010000
42009-12-290.024000
52010-09-210.027000
62013-12-061.593000
72017-12-260.010000
82018-09-180.013000
92019-09-170.014000
102000-06-300.014000
112005-03-150.014000
122016-09-200.006000
132021-12-210.784000
142024-03-190.017000
152008-12-090.016000
162011-06-140.003000
172011-09-200.028000
182006-03-140.013000
192008-12-290.038000
202015-09-080.009000
212015-12-081.033000
222016-06-210.045000
232000-09-290.009000
242002-12-060.320000
252004-12-280.006000
262023-06-200.023000
272006-12-121.333000
282011-12-270.035000
292022-12-210.258000
302023-03-210.021000
312025-09-230.025000
322004-03-160.015000
332004-12-070.946000
342005-09-130.034000
352024-09-170.024000
362000-12-080.212000
372003-03-180.021000
382018-12-200.011000
391999-03-260.016000
402008-09-160.036000
412012-12-260.057000
422020-06-160.015000
431999-06-250.017000
442004-06-150.006000
452012-12-070.386000
462018-06-190.024000
472021-06-220.002000
482006-12-270.042000
492012-09-180.017000
502014-12-230.036000
512014-12-091.213000
522015-12-280.012000
532017-06-200.015000
542009-06-160.081000
552010-12-280.035000
562012-06-120.043000
572014-09-090.018000
582019-06-180.014000
592021-03-230.007000
602022-03-220.035000
612001-03-300.018000
622007-12-280.043000
632009-09-150.012000
642023-09-190.028000
652025-06-240.022000
662007-09-110.020000
672007-12-111.831000
682008-06-170.034000
692017-09-190.002000
702017-12-121.230000
712020-12-220.003000
722022-06-210.016000
732024-12-170.650000
742000-03-310.018000
752013-09-100.020000
762013-12-230.018000
772025-12-161.188000
782018-12-111.163000
792020-09-220.012000
802005-12-061.338000
812005-12-280.015000
822011-12-090.596000
832015-06-090.012000
842016-12-270.005000
852018-12-310.011000
862021-09-210.011000
872022-09-200.020000
881999-12-100.022000
892013-03-120.007000
902013-06-110.047000
912023-12-190.031000
922024-06-180.033000
932007-06-120.023000
942019-12-200.163000
952001-12-070.191000
962003-06-170.010000
972003-12-310.020000