f/overrides/event-backup/julbx-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

1.2 KiB

1DateDividends
22013-06-280.049000
32014-06-300.054000
42017-09-290.049000
52019-12-271.204000
62025-03-310.055000
72011-12-290.266000
82012-06-290.052000
92013-03-280.040000
102016-12-280.866000
112016-03-310.042000
122023-03-310.045000
132023-06-300.056000
142016-06-300.047000
152018-03-290.038000
162020-03-310.036000
172021-03-310.039000
182014-09-300.059000
192014-12-290.335000
202020-06-300.038000
212023-12-270.495000
222013-09-300.050000
232022-12-281.253000
242019-09-300.049000
252012-12-270.220000
262019-06-280.048000
272026-06-300.067000
282017-12-271.069000
292018-12-271.104000
302012-03-300.045000
312015-03-310.044000
322015-09-300.062000
332016-09-300.055000
342025-09-300.064000
352026-03-310.003000
362015-06-300.049000
372015-12-290.920000
382020-12-290.801000
392024-09-300.064000
402017-06-300.049000
412018-09-280.058000
422022-09-300.063000
432025-12-301.328000
442024-06-280.065000
452018-06-290.052000
462020-09-300.044000
472021-09-300.058000
482023-09-290.059000
492021-06-300.046000
502022-06-300.060000
512024-03-280.047000
522013-12-270.311000
532014-03-310.043000
542022-03-310.048000
552025-06-300.061000
562024-12-300.216000
572012-09-280.056000
582017-03-310.039000
592019-03-290.038000
602021-12-291.498000