f/overrides/event-backup/disv-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

355 B

1DateDividends
22022-06-220.071000
32023-03-210.050000
42024-06-180.446000
52025-03-250.033000
62025-12-160.245000
72026-06-230.602000
82022-09-200.085000
92023-09-190.161000
102024-03-190.012000
112025-09-230.170000
122022-12-200.118000
132023-12-190.177000
142024-12-170.163000
152026-03-240.016000
162023-06-210.316000
172024-09-170.116000
182025-06-240.574000