f/overrides/event-backup/arskx-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

415 B

1DateDividends
22023-03-300.028000
32024-12-305.544000
42019-12-302.218000
52015-12-291.977000
62019-09-270.051000
72022-12-291.588000
82014-12-302.130000
92019-03-280.069000
102019-04-290.050000
112019-06-270.067000
122020-03-300.039000
132021-12-302.836000
142023-06-290.018000
152023-12-284.334000
162018-12-281.187000
172026-06-290.010000
182025-12-299.187000
192020-06-290.031000
202020-12-300.006000
212013-12-271.300000