f/overrides/event-backup/mmcrx-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

335 B

1DateDividends
22014-12-301.735000
32025-12-290.572000
42012-12-270.485000
52019-12-270.432000
62023-12-260.234000
72024-12-270.975000
82012-12-310.017000
92022-12-270.246000
102015-12-290.502000
112016-12-280.384000
122017-12-280.353000
132018-12-260.680000
142020-12-280.445000
152021-12-280.685000
162013-04-170.471000
172013-12-270.668000