f/overrides/event-backup/jlvmx-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

1.5 KiB

1DateDividends
22023-06-280.086000
32025-03-270.056000
42014-12-190.057000
52015-12-111.735000
62016-06-280.048000
72011-03-310.038000
82014-03-310.064000
92017-06-280.051000
102020-03-270.041000
112025-09-260.091000
122025-12-180.092000
132013-09-300.051000
142022-03-290.051000
152023-09-270.096000
162019-03-270.047000
172019-12-190.080000
182023-12-130.711000
192016-03-290.049000
202013-03-280.043000
212014-09-300.059000
222012-12-180.057000
232013-12-120.106000
242014-06-300.061000
252015-03-270.051000
262018-03-270.052000
272018-12-190.060000
282019-06-260.061000
292021-03-290.030000
302011-09-300.036000
312016-12-200.059000
322017-12-200.050000
332018-09-260.060000
342018-12-120.908000
352022-09-280.080000
362024-12-190.080000
372013-10-160.408000
382016-09-280.048000
392020-12-180.054000
402022-12-200.092000
412024-12-121.898000
422015-12-210.067000
432017-03-290.040000
442020-06-260.067000
452022-12-130.787000
462011-06-300.040000
472017-12-131.278000
482018-06-270.052000
492024-03-260.071000
502026-06-260.071000
512012-03-300.035000
522013-12-200.056000
532014-12-122.548000
542019-09-260.058000
552023-03-290.071000
562012-06-290.032000
572015-06-260.060000
582015-09-280.045000
592021-06-280.036000
602021-09-280.074000
612021-12-131.383000
622021-12-200.074000
632024-09-260.094000
642013-06-280.050000
652025-12-111.417000
662025-06-260.088000
672017-09-270.045000
682023-12-200.107000
692024-06-260.087000
702012-09-280.041000
712022-06-280.074000
722011-12-200.049000
732020-09-280.046000
742026-03-270.045000
752016-12-140.661000