f/overrides/event-backup/epp-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

935 B

1DateDividends
22012-12-181.106000
32013-06-270.942000
42013-12-180.883000
52018-06-190.868000
62009-12-220.802000
72010-06-230.565000
82010-12-210.986000
92013-12-270.082000
102015-06-250.952000
112015-12-210.927000
122007-12-202.429000
132017-12-191.228000
142019-06-170.842000
152020-06-150.543000
162020-12-140.547000
172023-06-070.815000
182023-12-200.966000
192026-06-150.824000
202014-06-250.771000
212017-06-200.756000
222016-06-220.661000
232022-06-091.160000
242022-12-130.709000
252025-06-160.859000
262003-12-220.167667
272008-06-250.143000
282018-12-181.167000
292021-06-100.621000
302024-12-170.967000
312025-12-161.046000
322002-12-230.294000
332008-12-230.487000
342012-06-210.876000
352014-12-171.132000
362003-12-160.073333
372004-12-231.004333
382005-12-231.232667
392006-12-201.732333
402009-06-230.627000
412011-06-220.743000
422011-12-200.973000
432016-12-210.906000
442019-12-160.956000
452021-12-131.269000
462021-12-300.295000
472024-06-110.701000