f/overrides/event-backup/heem-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

575 B

1DateDividends
22018-07-030.184000
32018-12-280.361000
42020-12-240.313000
52022-12-021.126000
62014-12-260.481000
72024-12-200.462000
82016-07-060.182000
92015-07-020.173000
102015-12-280.300000
112025-07-020.283000
122025-12-230.498000
132026-07-020.229000
142017-07-060.132000
152023-12-220.472000
162024-07-020.182000
172025-12-020.602000
182021-07-020.143000
192015-12-020.782000
202016-12-280.209000
212019-12-240.565000
222022-07-050.228000
232022-12-230.365000
242017-12-280.410000
252019-07-020.239000
262020-07-020.146000
272021-12-230.414000
282021-12-300.016000
292023-07-030.204000