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bb8e39605e
f/overrides/event-backup/acv-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

2.7 KiB
Raw Blame History

1DateDividends
22015-08-110.167000
32015-09-090.167000
42017-11-100.167000
52018-08-100.167000
62016-02-100.167000
72023-11-100.180000
82025-07-110.180000
92016-04-070.167000
102017-02-090.167000
112020-12-100.167000
122022-04-080.180000
132018-12-120.167000
142020-06-100.167000
152021-06-100.167000
162022-11-100.180000
172023-03-100.180000
182023-04-120.180000
192025-11-130.180000
202021-01-130.167000
212022-05-110.180000
222024-09-130.180000
232017-03-090.167000
242020-01-100.167000
252021-03-100.167000
262016-08-090.167000
272021-05-120.167000
282024-04-100.180000
292026-05-110.180000
302020-10-090.167000
312021-11-100.167000
322021-12-235.799000
332024-07-110.180000
342026-03-160.180000
352018-05-100.167000
362018-10-100.167000
372019-09-120.167000
382024-06-130.180000
392025-04-110.180000
402016-07-070.167000
412017-08-090.167000
422019-06-120.167000
432024-02-090.180000
442017-06-080.167000
452020-05-080.167000
462020-08-120.167000
472022-10-120.180000
482025-02-130.180000
492017-07-110.167000
502018-01-110.167000
512023-10-110.180000
522021-08-110.167000
532024-08-120.180000
542025-10-140.180000
552017-12-080.167000
562015-10-080.167000
572017-09-080.167000
582019-10-100.167000
592024-11-120.180000
602016-11-080.167000
612020-02-120.167000
622022-09-090.180000
632023-08-100.180000
642016-05-100.167000
652019-04-100.167000
662019-07-100.167000
672022-06-100.180000
682022-08-100.180000
692023-02-100.180000
702025-09-120.180000
712016-10-110.167000
722018-11-090.167000
732020-04-090.167000
742021-02-100.167000
752021-10-080.167000
762023-07-120.180000
772025-06-120.180000
782025-12-290.384000
792019-12-110.167000
802020-03-110.167000
812017-04-110.167000
822017-05-090.167000
832019-02-080.167000
842019-05-100.167000
852025-08-110.180000
862026-06-150.180000
872015-07-160.167000
882022-12-290.196000
892024-01-110.180000
902017-10-110.167000
912021-04-090.167000
922021-07-090.167000
932026-04-130.180000
942026-07-130.180000
952022-02-100.180000
962024-05-100.180000
972025-05-120.180000
982025-12-110.180000
992026-02-120.180000
1002017-01-110.167000
1012018-06-080.167000
1022019-11-080.167000
1032020-07-100.167000
1042021-09-100.167000
1052023-05-100.180000
1062024-12-120.180000
1072018-02-090.167000
1082018-04-110.167000
1092018-07-110.167000
1102019-08-090.167000
1112018-09-130.167000
1122023-01-190.180000
1132023-09-080.180000
1142023-12-080.180000
1152024-10-110.180000
1162025-01-130.180000
1172020-12-180.376000
1182022-07-080.180000
1192025-03-130.180000
1202016-12-080.167000
1212019-03-080.167000
1222021-12-100.167000
1232023-06-090.180000
1242024-03-080.180000
1252015-12-090.167000
1262016-03-090.167000
1272016-09-080.167000
1282018-03-090.167000
1292019-01-110.167000
1302022-01-120.180000
1312022-12-090.180000
1322026-01-120.180000
1332026-08-130.180000
1342016-06-090.167000
1352022-03-100.180000
1362015-11-090.167000
1372016-01-120.167000
1382020-09-100.167000
1392020-11-100.167000