f/overrides/event-backup/fopax-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
22019-12-300.004000
32021-12-032.309000
42022-12-091.133000
52005-12-090.003000
62011-12-020.121000
72017-12-080.336000
82018-12-070.426000
92023-12-080.681000
102024-12-131.197000
112007-12-071.903000
122010-12-300.058000
132013-12-060.134000
142019-12-060.161000
152025-12-122.556000
162015-12-040.122000
172016-12-090.158000
182009-12-040.164000
192010-12-030.096000
202012-12-070.082000
212014-12-050.071000