f/overrides/event-backup/gceqx-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

1015 B

1DateDividends
22009-06-290.101000
32013-06-270.073000
42015-12-300.488000
52017-12-280.286000
62020-06-290.119000
72023-12-280.025000
82025-06-270.037000
91996-12-270.025000
101997-12-230.013000
112011-06-290.089000
122013-12-300.101000
132015-06-290.106000
142019-12-300.239000
152023-06-290.074000
161995-12-200.006000
172012-12-280.124000
182014-12-300.437000
192016-06-280.135000
202025-12-304.421000
212003-12-300.015000
222007-12-281.125000
232008-06-270.077000
242008-12-300.121000
252020-12-300.565000
262022-06-290.009000
271998-12-230.210000
282004-12-300.106000
292011-12-290.104000
302014-06-260.070000
312018-12-280.749000
321996-06-260.018000
331999-12-230.078000
342001-12-271.319000
352007-06-280.089000
362010-06-290.071000
372010-12-300.111000
382012-06-280.093000
392016-12-290.630000
401997-06-260.005000
412022-12-290.267000
422017-06-290.080000
432009-12-300.077000
442024-06-270.102000
452024-12-300.898000
462000-12-280.805000
472006-12-280.101000
482018-06-280.108000
492019-06-270.100000
502021-12-300.856000
512005-12-290.033000