f/overrides/event-backup/mglrx-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

355 B

1DateDividends
22018-12-180.470000
32020-12-150.187000
42021-12-140.488000
52023-12-140.328000
62012-12-180.846000
72013-09-250.118000
82015-07-310.235000
92019-12-171.029000
102013-12-170.708000
112015-12-170.867000
122017-12-190.675000
132022-12-130.943000
142025-12-110.538000
152013-05-310.207000
162014-12-180.704000
172016-12-201.438000
182024-12-120.429000