f/overrides/event-backup/apoix-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
22025-06-240.117000
32006-07-310.054000
42007-06-290.075000
52010-12-280.128000
62013-06-110.016000
72017-06-200.051000
82017-12-260.103000
92023-06-200.032000
102006-11-300.001000
112010-12-100.108000
122024-12-170.232000
132007-05-310.094000
142011-06-140.146000
152025-12-160.297000
162018-12-200.169000
172020-12-220.058000
182024-06-180.004000
192005-11-300.115000
202007-04-300.060000
212006-08-310.031000
222008-09-160.224000
232014-12-230.087000
242019-12-200.173000
252022-12-210.515000
262012-12-070.024000
272009-12-290.163000
282013-12-060.023000
292026-06-090.073000
302006-09-290.040000
312008-03-180.062000
322012-06-120.056000
332006-06-300.092000
342021-12-210.393000
352006-05-310.060000
362007-09-280.012000
372014-06-100.026000
382005-06-300.002000
392005-09-300.051000
402006-04-280.007000
412006-10-310.029000
422007-08-310.035000
432008-06-170.173000
442010-06-150.111000
452016-01-290.014000
462020-06-160.028000
472021-06-220.034000
482022-06-210.043000
492005-07-290.002000
502005-08-310.011000
512007-12-280.060000
522011-12-270.198000
532012-12-260.076000
542016-12-270.043000
552023-12-190.246000
562005-10-310.051000
572018-06-190.059000
582018-12-310.169000
592005-12-300.029000
602007-07-310.063000
612011-12-090.738000