f/overrides/event-backup/ftmlx-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

395 B

1DateDividends
22023-12-280.072000
32024-03-280.092000
42024-09-300.079000
52025-12-300.708000
62022-12-290.074000
72023-06-150.093000
82024-06-280.089000
92025-06-160.530000
102025-06-300.107000
112026-06-300.506000
122021-12-301.767000
132022-09-300.061000
142023-03-310.085000
152024-12-300.142000
162025-03-310.071000
172026-03-310.039000
182023-06-300.089000
192023-09-290.080000
202025-09-300.090000