f/overrides/event-backup/comt-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

495 B

1DateDividends
22015-09-250.137000
32015-12-240.015000
42016-06-210.026000
52017-03-240.090000
62017-12-211.596000
72018-03-220.111000
82015-03-250.036000
92015-06-240.221000
102019-12-160.858000
112020-12-140.096000
122018-09-260.209000
132018-12-183.104000
142024-12-171.240000
152017-06-270.076000
162018-06-260.129000
172025-12-161.927000
182014-12-240.230000
192021-12-135.494000
202016-12-280.020000
212017-09-260.113000
222022-12-138.398000
232023-12-201.302000
242016-09-260.044000
252016-12-220.029000