f/overrides/event-backup/koku-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

515 B

1DateDividends
22023-12-150.348000
32024-03-150.246000
42025-06-200.600000
52025-09-190.425000
62026-06-180.681000
72022-03-180.254000
82023-09-150.355000
92021-09-170.357000
102022-09-160.297000
112022-12-160.355000
122024-06-210.571000
132024-12-200.402000
142021-03-190.245000
152021-06-250.441000
162025-03-210.266000
172025-12-190.489000
182026-03-200.271000
192020-12-030.013000
202022-06-240.482000
212021-12-170.600000
222023-03-170.231000
232023-06-230.569000
242024-09-200.422000
252020-06-250.008000
262020-12-180.372000