f/overrides/event-backup/flkr-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

375 B

1DateDividends
22017-12-200.248000
32018-12-200.378000
42022-12-290.138000
52025-06-200.066000
62026-06-260.298000
72019-12-110.402000
82023-12-150.351000
92024-06-211.177000
102024-12-200.056000
112020-12-140.304000
122021-12-130.404000
132022-06-170.074000
142022-12-160.399000
152025-12-191.174000
162017-12-280.020000
172019-06-110.052000
182021-06-100.185000
192023-06-160.168000