f/overrides/event-backup/npct-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

1.2 KiB

1DateDividends
22021-10-140.103000
32024-10-150.119000
42022-02-140.103000
52024-06-140.119000
62024-07-150.119000
72024-12-130.119000
82022-06-140.103000
92023-11-140.083000
102024-03-140.092000
112025-07-150.108000
122025-12-150.099000
132022-11-140.103000
142023-08-140.083000
152025-02-140.119000
162025-09-150.108000
172025-08-150.108000
182026-07-150.090000
192022-08-120.103000
202022-09-140.103000
212024-01-110.083000
222024-02-140.092000
232024-09-130.119000
242025-01-150.119000
252025-06-130.108000
262026-02-130.099000
272021-08-120.103000
282022-04-130.103000
292022-10-130.103000
302023-02-140.103000
312023-12-140.083000
322025-03-140.119000
332022-01-130.103000
342023-05-120.083000
352024-04-120.092000
362025-11-140.108000
372023-09-140.083000
382026-04-150.099000
392025-05-150.119000
402026-06-150.090000
412021-12-140.103000
422022-07-140.103000
432023-01-120.103000
442023-03-140.083000
452023-04-130.083000
462023-07-130.083000
472022-12-140.103000
482021-06-140.103000
492021-09-140.103000
502024-05-140.092000
512024-08-150.119000
522022-03-140.103000
532024-11-150.119000
542025-10-150.108000
552026-05-150.099000
562023-10-120.083000
572026-03-130.099000
582021-07-140.103000
592021-11-120.103000
602022-05-120.103000
612023-06-140.083000
622025-04-150.119000
632026-01-150.099000
642026-08-140.090000