f/overrides/event-backup/gvip-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
22025-12-230.519000
32019-12-240.008000
42022-09-260.001000
52022-12-270.010000
62019-09-240.116000
72020-03-250.112000
82020-12-240.001000
92023-12-260.741000
102017-06-230.067000
112017-09-220.107000
122018-06-250.055000
132017-03-240.066000
142018-09-240.081000
152018-12-240.075000
162024-12-230.355000
172018-03-230.007000
182019-03-250.314000
192019-06-240.053000