f/overrides/event-backup/divs-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

435 B

1DateDividends
22023-03-310.110000
32024-06-280.100000
42024-09-270.120000
52025-09-260.140000
62022-09-300.120000
72024-03-280.100000
82024-12-130.437000
92025-03-280.110000
102022-06-240.120000
112021-12-030.790000
122023-06-300.120000
132023-09-290.120000
142025-06-270.130000
152025-12-120.427000
162021-09-240.110000
172022-03-250.130000
182022-12-021.000000
192023-12-080.465000
202026-03-200.160000
212026-06-180.170000
222021-06-250.110000