f/overrides/event-backup/mxjvx-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

475 B

1DateDividends
22017-09-060.187000
32018-09-070.090000
42019-09-060.020000
52020-09-040.075000
62015-12-290.262000
72016-09-070.178000
82016-12-280.198000
92017-12-270.435000
102019-03-250.002000
112021-09-030.112000
122024-12-270.652000
132025-12-290.984000
142018-12-272.598000
152019-02-280.002000
162020-12-290.220000
172022-09-060.021000
182022-12-280.305000
192023-09-060.082000
202023-12-270.477000
212024-09-060.024000
222019-12-270.328000
232021-12-290.504000
242025-09-050.041000