f/overrides/event-backup/eica-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
22022-04-080.104000
32022-10-070.104000
42025-08-110.104000
52025-09-100.104000
62024-01-100.104000
72024-07-110.104000
82024-11-120.104000
92025-05-120.104000
102024-02-080.104000
112024-09-100.104000
122025-11-100.104000
132026-08-110.104000
142022-01-100.104000
152024-03-070.104000
162024-05-100.104000
172025-03-110.104000
182022-02-070.104000
192023-04-060.104000
202023-06-090.104000
212024-12-110.104000
222025-10-140.104000
232026-07-130.104000
242022-03-100.104000
252023-03-100.104000
262025-01-130.104000
272025-06-100.104000
282023-12-080.104000
292023-09-080.104000
302025-02-100.104000
312026-04-100.104000
322022-07-080.104000
332022-12-090.104000
342026-05-110.104000
352023-05-100.104000
362023-10-100.104000
372025-12-110.104000
382026-03-110.104000
392024-04-090.104000
402022-08-100.104000
412022-11-090.104000
422023-01-100.104000
432023-08-100.104000
442023-07-100.104000
452024-10-110.104000
462026-02-090.104000
472026-06-100.104000
482022-09-090.104000
492023-11-100.104000
502024-06-100.104000
512024-08-120.104000
522021-12-100.104000
532023-02-070.104000
542026-01-120.104000
552022-05-100.104000
562022-06-090.104000
572025-04-100.104000
582025-07-110.104000