f/overrides/event-backup/ilf-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
22013-12-170.601000
32017-06-200.310000
42003-12-160.046000
52010-12-290.037000
62011-06-210.744000
72011-12-190.659000
82015-12-290.143000
92019-12-160.570000
102024-06-110.662000
112003-12-220.025600
122005-12-230.338000
132009-12-290.036000
142015-12-210.224000
152019-06-170.480000
162021-06-100.378000
172026-06-150.439000
182009-06-220.308000
192012-06-200.642000
202012-12-170.348000
212016-06-210.153000
222018-06-190.511000
232022-06-091.098000
242025-06-160.595000
252020-06-150.272000
262025-12-160.540000
272003-12-310.020600
282006-12-210.652000
292015-06-240.322000
302017-12-210.276000
312009-12-210.408000
322010-12-200.357000
332014-12-190.350000
342018-12-180.451000
352007-12-240.694400
362008-06-230.529000
372008-12-220.471000
382008-12-290.076000
392025-12-300.201000
402023-12-200.860000
412024-12-170.894000
422010-06-210.778000
432013-06-250.628000
442020-12-140.279000
452021-12-131.609000
462017-12-280.031000
472022-12-131.814000
482023-06-070.479000
492004-12-230.187600
502012-12-270.146000
512014-06-240.389000
522016-12-220.285000