f/overrides/event-backup/dln-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

3.7 KiB

1DateDividends
22013-06-240.065000
32014-07-210.070000
42014-09-220.075000
52015-06-220.087500
62016-01-250.050000
72020-08-250.112500
82024-11-250.135000
92009-06-220.123500
102009-12-210.157000
112015-04-200.065500
122016-05-230.072500
132017-07-240.090000
142022-12-230.235000
152026-02-240.115000
162016-10-240.072500
172016-12-230.143500
182022-01-250.055000
192023-01-250.050000
202023-06-260.140000
212024-12-310.005000
222026-01-270.055000
232007-06-250.174000
242009-09-210.127000
252014-02-240.065000
262014-03-240.065000
272015-10-260.085000
282020-05-260.125000
292025-12-260.270000
302007-12-170.272500
312015-03-230.085500
322016-08-220.087500
332018-09-250.165500
342019-04-230.100000
352022-10-250.100000
362024-02-230.100000
372024-03-220.160000
382025-10-280.110000
392012-03-260.161500
402014-04-210.060000
412014-12-190.119000
422015-02-230.094500
432016-06-200.085000
442024-06-250.160000
452014-11-210.085000
462015-09-210.085000
472021-10-250.122500
482022-03-250.185000
492025-01-280.060000
502006-10-040.107000
512014-10-270.051000
522017-03-270.130000
532018-04-240.052500
542018-07-240.120000
552021-03-250.125000
562023-02-220.090000
572017-09-260.117500
582019-11-250.125000
592013-10-210.070000
602019-12-230.149500
612022-06-240.180000
622022-08-250.135000
632009-03-230.169000
642011-03-210.147500
652013-12-240.086000
662015-05-220.090000
672017-02-170.062500
682021-09-240.142500
692024-04-240.130000
702013-03-220.062500
712026-04-270.120000
722008-06-230.193500
732008-09-220.199500
742010-09-200.132500
752013-08-260.065000
762013-09-230.065000
772014-06-230.072500
782018-02-200.040000
792025-06-250.210000
802012-11-260.155000
812020-01-210.055000
822025-11-240.095000
832007-03-260.125000
842012-06-250.196500
852019-03-260.162500
862019-08-270.137500
872021-05-240.070000
882023-05-240.160000
892011-06-220.153000
902014-08-250.075500
912017-10-240.077500
922017-11-210.047500
932019-09-240.097500
942021-06-240.145000
952012-09-240.187500
962023-07-250.110000
972023-08-250.135000
982025-02-250.105000
992010-06-280.166000
1002015-11-230.080000
1012016-03-210.090000
1022016-04-250.094500
1032016-11-210.082500
1042019-01-220.065000
1052021-01-250.077500
1062023-10-250.100000
1072025-09-250.205000
1082026-05-260.130000
1092026-06-250.205000
1102006-12-210.166000
1112011-09-260.176500
1122020-07-280.102500
1132025-05-270.090000
1142013-07-220.065000
1152017-06-260.120000
1162017-08-210.085000
1172022-07-250.110000
1182023-12-220.250000
1192024-01-250.050000
1202015-12-210.125500
1212017-01-230.055000
1222021-07-260.120000
1232024-12-260.183000
1242014-05-230.061000
1252016-09-260.107500
1262019-02-190.072500
1272026-07-280.105000
1282020-06-230.140000
1292022-09-260.175000
1302015-01-260.040000
1312017-12-260.171000
1322020-09-220.097500
1332022-11-230.110000
1342013-02-190.062500
1352013-04-220.065000
1362016-07-250.090000
1372017-05-220.072500
1382024-09-250.160000
1392017-04-240.045000
1402018-03-200.189000
1412019-06-240.105000
1422021-04-260.115000
1432021-08-250.077500
1442021-12-270.211000
1452025-04-250.145000
1462008-03-240.168500
1472008-12-220.161000
1482010-12-220.185500
1492013-01-220.059000
1502019-07-230.090000
1512020-03-240.125000
1522020-11-230.092500
1532020-12-210.180000
1542020-12-300.022500
1552007-09-240.209000
1562013-11-220.070000
1572021-02-220.050000
1582023-04-240.090000
1592026-03-260.205000
1602010-03-290.136000
1612014-01-270.070000
1622018-10-230.072500
1632020-02-250.150000
1642022-02-220.040000
1652022-04-250.135000
1662023-03-270.220000
1672024-07-260.100000
1682025-08-260.110000
1692013-05-240.065000
1702018-08-210.067500
1712020-04-210.085000
1722020-10-270.142500
1732015-08-240.082500
1742016-02-220.080000
1752018-12-240.187000
1762019-10-220.090000
1772024-08-270.140000
1782025-03-260.175000
1792011-12-210.196000
1802012-12-240.100000
1812018-01-230.055000
1822018-05-220.062500
1832018-06-250.140000
1842018-11-200.072500
1852019-05-280.132500
1862021-11-230.075000
1872022-05-240.105000
1882023-11-240.120000
1892024-05-240.130000
1902024-10-280.105000
1912025-07-280.100000