f/overrides/event-backup/fetkx-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

1.5 KiB

1DateDividends
22019-12-271.742000
32021-04-050.109000
42023-04-050.085000
52025-07-110.145000
62008-07-110.103000
72008-10-030.088000
82009-04-030.101000
92019-10-040.138000
102024-12-261.891000
112012-04-040.100000
122012-12-140.153000
132017-10-060.138000
142018-07-060.169000
152020-04-030.120000
162021-10-010.161000
172010-12-100.092000
182015-07-010.149000
192019-04-050.132000
202019-07-050.170000
212010-10-010.066000
222014-10-030.127000
232015-01-160.084000
242016-10-070.143000
252008-12-120.081000
262009-07-100.071000
272009-10-020.063000
282009-12-110.067000
292018-10-050.158000
302011-07-080.106000
312014-12-120.197000
322017-07-070.146000
332026-07-100.162000
342025-04-040.145000
352012-07-060.126000
362016-01-150.032000
372016-07-080.064000
382024-04-050.114000
392024-07-050.206000
402026-04-010.153000
412014-07-030.129000
422017-04-070.169000
432021-12-282.799000
442022-07-010.176000
452017-12-262.390000
462020-12-290.238000
472023-10-060.157000
482011-04-060.055000
492011-10-070.097000
502012-10-050.116000
512023-12-260.995000
522024-10-040.172000
532025-12-261.852000
542022-10-070.138000
552020-07-100.169000
562020-10-020.115000
572021-07-020.168000
582022-04-010.101000
592013-10-040.108000
602025-10-030.174000
612011-12-090.115000
622015-04-010.113000
632016-12-271.304000
642018-12-262.693000
652014-04-040.250000
662018-04-060.145000
672022-12-271.567000
682015-12-111.001000
692016-04-080.126000
702023-07-070.203000
712010-07-090.072000
722013-04-050.103000
732013-07-050.133000
742013-12-130.147000
752015-10-020.150000