f/overrides/event-backup/lenkx-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

335 B

1DateDividends
22022-06-300.084000
32022-12-230.071000
42023-06-300.091000
52023-09-290.041000
62020-09-300.016000
72025-12-290.284000
82024-12-240.652000
92020-12-310.059000
102021-03-310.013000
112021-06-300.063000
122021-09-300.039000
132022-09-300.054000
142021-12-310.150000
152022-03-310.015000
162023-03-310.027000
172023-12-220.106000