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f/overrides/event-backup/mdbzx-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

675 B
Raw Blame History

1DateDividends
22025-04-300.035000
32025-05-300.033000
42025-08-290.032000
52025-09-300.036000
62025-12-310.035000
72026-01-300.032000
82026-04-300.040000
92011-12-190.762000
102016-12-190.263000
112021-12-150.439000
122026-02-270.032000
132015-12-170.312000
142019-12-130.365000
152023-12-120.444000
162024-07-310.037000
172018-12-140.332000
182020-12-110.834000
192025-01-310.033000
202025-11-280.031000
212026-06-300.045000
222017-12-180.323000
232022-12-130.361000
242025-03-310.034000
252025-10-310.034000
262026-07-310.044000
272012-12-190.780000
282025-02-280.033000
292025-06-300.036000
302025-07-310.033000
312026-03-310.036000
322026-05-290.038000
332013-12-180.323000
342014-12-170.237000