f/overrides/event-backup/jpse-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

755 B

1DateDividends
22019-03-200.044000
32019-06-250.128000
42023-09-190.182000
52023-12-190.323000
62024-03-190.089000
72026-06-230.167000
82018-06-260.087000
92019-09-240.101000
102022-06-210.119000
112025-06-240.173000
122017-12-260.219000
132018-03-210.036000
142021-03-230.070000
152021-06-220.079000
162022-03-220.030000
172026-03-240.084000
182021-12-300.036000
192023-03-210.066000
202024-09-240.203000
212025-12-230.320000
222020-06-230.107000
232022-12-200.309000
242023-06-200.205000
252016-12-230.037000
262020-03-240.086000
272020-09-220.080000
282020-12-220.202000
292022-09-200.143000
302024-12-240.292000
312025-03-250.098000
322025-09-230.219000
332018-09-250.087000
342019-12-230.129000
352021-09-210.133000
362018-12-240.106000
372021-12-210.251000
382024-06-250.195000