f/overrides/event-backup/lirkx-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

1.1 KiB

1DateDividends
22016-03-310.047000
32018-03-290.048000
42013-03-280.034000
52013-09-300.041000
62023-12-220.115000
72026-07-220.244000
82012-03-300.018000
92014-09-300.048000
102015-06-300.076000
112017-06-300.071000
122018-06-290.087000
132013-06-280.068000
142019-03-280.057000
152019-12-310.101000
162020-09-300.054000
172015-12-300.153000
182014-12-310.165000
192015-09-300.056000
202018-09-280.070000
212020-03-310.060000
222014-06-300.099000
232022-06-300.092000
242012-06-290.029000
252016-06-300.072000
262016-09-300.051000
272019-06-280.095000
282020-06-300.086000
292022-03-310.050000
302025-07-170.001000
312018-12-310.083000
322025-12-290.579000
332017-09-290.055000
342020-12-310.179000
352024-10-020.281000
362019-09-270.071000
372023-03-310.061000
382014-03-310.043000
392015-03-310.041000
402021-06-300.110000
412021-09-300.073000
422024-12-240.139000
432022-09-300.096000
442013-12-310.100000
452021-12-310.199000
462022-07-140.020000
472012-09-280.045000
482012-12-310.082000
492023-09-290.078000
502024-06-280.003000
512016-12-300.117000
522017-03-310.043000
532017-12-290.109000
542021-03-310.045000
552022-12-230.077000
562023-06-300.100000