f/overrides/event-backup/irfzx-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

455 B

1DateDividends
22019-12-041.060000
32021-06-300.364000
42022-12-080.094000
52023-12-070.104000
62024-12-040.116000
72026-06-300.148000
82015-12-100.132000
92016-12-080.508000
102017-12-060.256000
112019-06-280.171000
122022-06-300.140000
132025-12-080.402000
142020-06-300.103000
152021-12-090.561000
162024-06-280.139000
172016-06-300.148000
182017-06-300.152000
192018-06-290.209000
202018-12-060.259000
212020-12-100.305000
222023-06-300.134000
232025-06-300.162000