f/overrides/event-backup/fyhtx-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

320 B

1DateDividends
22022-11-300.903000
32025-09-121.827000
42017-09-151.250000
52017-12-081.150000
62024-09-132.125000
72019-12-1326.050000
82022-09-09182.050000
92019-09-133.100000
102023-11-291.633000
112018-09-1449.650000
122018-12-072.500000
132024-12-061.328000
142025-12-051.154000
152021-09-1066.000000
162023-09-082.086000