f/overrides/event-backup/jhmm-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

455 B

1DateDividends
22019-12-240.238000
32025-12-290.369000
42026-06-260.288000
52016-12-230.180000
62019-06-250.162000
72020-12-240.246000
82021-06-250.151000
92022-06-270.200000
102022-12-270.339000
112023-06-270.247000
122015-12-240.084000
132017-06-260.127000
142018-12-240.276000
152021-12-270.250000
162023-12-260.371000
172024-12-270.368000
182025-06-260.271000
192016-06-240.149000
202017-12-260.179000
212024-06-260.238000
222018-06-260.137000
232020-06-250.223000