f/overrides/event-backup/heq-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
22015-09-090.376000
32013-09-110.323000
42015-06-090.376000
52015-12-090.376000
62018-03-090.376000
72025-06-120.250000
82011-09-080.363000
92014-09-100.376000
102021-03-100.290000
112013-06-110.323000
122016-06-090.376000
132019-12-110.376000
142020-09-100.290000
152020-03-110.376000
162025-09-120.250000
172012-03-080.324000
182014-06-100.376000
192015-03-100.376000
202019-06-120.376000
212022-06-100.290000
222024-03-080.250000
232024-09-130.250000
242011-12-080.308000
252013-03-070.323000
262017-03-090.376000
272019-03-080.376000
282020-12-100.290000
292021-09-100.290000
302022-09-090.290000
312026-03-120.250000
322017-12-080.532000
332016-09-080.376000
342016-12-080.376000
352019-09-120.376000
362026-06-110.250000
372020-06-100.376000
382023-12-080.250000
392025-03-130.250000
402012-09-120.323000
412016-03-090.376000
422017-09-080.376000
432021-06-100.290000
442021-12-100.290000
452022-12-090.290000
462018-12-120.376000
472012-12-110.323000
482014-03-110.376000
492023-03-100.290000
502024-12-120.250000
512025-12-110.250000
522013-12-100.376000
532023-06-090.290000
542024-06-130.250000
552012-06-070.334000
562017-06-080.376000
572018-06-080.376000
582022-03-100.290000
592014-12-090.376000
602018-09-130.376000
612023-09-080.250000