f/overrides/event-backup/nure-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

815 B

1DateDividends
22018-03-260.230000
32019-09-260.236000
42023-03-290.262000
52023-06-280.262000
62025-09-290.292000
72017-03-270.232000
82017-12-260.329000
92025-06-270.366000
102019-12-270.250000
112020-12-170.395000
122024-06-270.231000
132025-03-280.285000
142026-03-300.381000
152018-06-260.202000
162023-09-270.276000
172023-12-140.354000
182021-03-290.151000
192021-09-280.127000
202017-09-260.236000
212018-12-260.381000
222021-06-280.116000
232024-09-270.300000
242024-12-180.297000
252026-06-290.300000
262016-12-230.120000
272016-12-280.120000
282022-03-290.167000
292022-06-280.182000
302024-03-260.288000
312025-12-180.342000
322019-06-260.229000
332021-12-160.152000
342020-03-270.225000
352017-06-260.208000
362018-09-250.214000
372020-09-280.149000
382022-09-280.194000
392022-12-150.255000
402019-03-270.278000
412020-06-260.152000