f/overrides/event-backup/mxtfx-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

635 B

1DateDividends
22017-12-271.501000
32021-12-291.522000
42022-06-230.038000
52024-12-270.433000
62025-12-290.203000
72016-09-070.132000
82020-06-240.026000
92023-12-270.812000
102024-09-060.115000
112025-09-050.078000
122019-12-270.155000
132018-09-070.157000
142021-09-030.520000
152022-12-280.541000
162015-06-190.049000
172016-12-280.638000
182016-12-300.002000
192017-09-060.469000
202018-06-220.020000
212019-09-060.001000
222020-09-040.067000
232021-06-230.031000
242022-09-060.397000
252023-06-230.038000
262015-09-040.136000
272015-12-291.010000
282017-06-230.039000
292018-12-270.531000
302019-06-240.026000
312016-06-240.043000
322023-09-060.159000