f/overrides/event-backup/aeudx-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

1.1 KiB

1DateDividends
22018-12-200.059000
32020-06-160.071000
42026-06-090.087000
52022-06-210.067000
62013-09-100.058000
72023-09-190.058000
82026-03-100.035000
92014-06-100.082000
102015-03-100.034000
112022-09-200.053000
122022-12-210.639000
132023-12-190.529000
142024-06-180.083000
152025-12-160.736000
162017-12-260.059000
172018-12-110.471000
182024-12-170.809000
192013-12-060.549000
202018-03-200.036000
212025-03-250.038000
222025-06-240.080000
232019-03-190.044000
242014-09-090.058000
252014-12-090.662000
262016-03-150.034000
272017-09-190.046000
282019-06-180.071000
292019-12-200.541000
302021-03-230.035000
312023-03-210.046000
322025-09-230.054000
332015-09-080.062000
342016-09-200.046000
352016-12-130.522000
362017-03-210.033000
372020-09-220.053000
382023-06-200.073000
392016-06-210.060000
402021-06-220.073000
412022-03-220.041000
422016-12-270.064000
432017-12-120.898000
442020-03-100.027000
452020-12-220.058000
462021-09-210.048000
472013-12-230.074000
482014-03-110.034000
492014-12-230.075000
502015-12-280.077000
512017-06-200.060000
522015-06-090.060000
532018-06-190.059000
542018-09-180.050000
552021-12-210.551000
562024-03-190.047000
572015-12-080.632000
582019-09-170.049000
592024-09-170.054000