f/overrides/event-backup/nfra-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

1.0 KiB

1DateDividends
22014-03-210.224000
32017-12-210.391000
42019-03-150.194000
52026-03-200.157000
62023-12-150.375000
72013-12-270.061000
82014-12-290.260000
92015-06-190.386000
102017-06-190.490000
112022-09-160.288000
122024-09-200.349000
132024-12-200.775000
142014-06-200.643000
152020-09-180.381000
162021-12-170.521000
172022-06-170.462000
182026-06-180.598000
192016-03-210.154000
202018-12-210.319000
212019-09-200.308000
222025-03-210.144000
232021-12-300.056000
242022-12-160.233000
252024-06-210.549000
262015-03-200.122000
272016-12-220.435000
282020-03-200.219000
292020-06-190.259000
302018-09-240.387000
312023-03-170.134000
322024-03-150.132000
332025-06-200.537000
342014-09-190.231000
352015-09-180.229000
362016-06-200.401000
372016-09-190.300000
382025-09-190.327000
392021-09-170.410000
402022-03-180.168000
412025-12-192.620000
422015-12-230.279000
432018-03-190.191000
442019-12-200.318000
452021-06-180.390000
462020-12-180.335000
472021-03-190.180000
482023-06-160.547000
492023-09-150.320000
502017-03-200.140000
512017-09-180.348000
522018-06-180.442000
532019-06-210.402000