f/overrides/event-backup/lafvx-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

1.0 KiB

1DateDividends
22025-12-021.282000
32015-11-241.146000
42016-09-300.097000
52021-11-230.453000
62026-03-270.070000
72018-09-280.093000
82024-09-250.075000
92017-06-300.098000
102018-11-201.223000
112022-06-290.099000
122017-09-290.102000
132018-03-290.094000
142018-06-290.097000
152016-03-310.106000
162016-06-300.094000
172023-03-300.086000
182025-09-230.069000
192022-11-220.923000
202016-11-220.817000
212017-03-310.099000
222017-12-290.094000
232020-06-300.089000
242022-12-280.084000
252024-03-270.078000
262015-09-300.102000
272019-11-210.336000
282019-12-270.100000
292020-03-270.091000
302025-03-270.072000
312017-11-211.541000
322021-03-300.063000
332023-12-270.086000
342024-12-270.133000
352025-06-240.069000
362020-09-290.081000
372021-06-290.073000
382022-03-300.078000
392022-09-290.086000
402025-12-300.059000
412016-12-300.118000
422021-09-290.087000
432021-12-290.092000
442015-12-310.099000
452023-09-280.070000
462019-03-290.098000
472019-09-270.096000
482018-12-270.086000
492019-06-280.092000
502023-06-290.084000
512026-06-260.063000
522020-12-290.074000
532024-06-270.084000
542024-11-260.852000