f/overrides/event-backup/mfekx-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

497 B

1DateDividends
22018-06-290.482000
32019-06-280.487000
42020-06-300.313000
52021-06-300.717000
62021-12-144.650000
72015-06-300.165000
82016-06-300.111000
92016-12-201.159000
102022-12-131.392000
112024-12-1725.503000
122025-07-314.130000
132020-12-155.454000
142023-07-310.452000
152024-07-310.519000
162015-12-172.537000
172018-12-183.497000
182019-12-171.518000
192013-12-171.108000
202014-05-300.147000
212025-12-1625.353000
222026-07-311.053000
232014-12-182.640000
242017-12-192.383000
252023-12-197.907000