f/overrides/event-backup/fhlc-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
22024-09-200.250000
32025-03-210.252000
42025-09-190.256000
52025-12-190.272000
62019-03-150.159000
72019-12-200.093000
82022-03-180.218000
92022-09-160.222000
102026-03-200.229000
112026-06-180.263000
122013-12-200.046000
132015-03-200.228000
142025-06-200.257000
152023-09-150.219000
162014-09-190.090000
172017-12-150.158000
182018-06-150.146000
192023-03-170.232000
202020-12-180.234000
212023-12-150.224000
222024-03-150.238000
232024-06-210.242000
242018-09-210.142000
252018-12-280.316000
262019-06-210.164000
272020-03-200.254000
282016-09-160.121000
292017-03-170.125000
302017-09-150.132000
312020-06-190.173000
322014-03-210.069000
332014-06-200.091000
342014-12-190.088000
352015-12-180.105000
362021-06-180.183000
372021-09-170.190000
382022-12-160.194000
392020-09-180.176000
402023-06-160.229000
412024-12-200.258000
422015-06-190.272000
432016-06-170.111000
442016-12-160.117000
452019-09-200.169000
462018-03-160.134000
472018-12-210.147000
482021-03-190.201000
492013-12-270.008000
502014-12-290.002000
512015-09-180.111000
522017-06-160.137000