f/overrides/event-backup/mfrkx-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

415 B

1DateDividends
22022-12-083.692000
32025-12-099.226000
42006-12-210.134000
52008-12-180.189000
62013-12-171.145000
72015-12-172.641000
82020-12-102.769000
92010-12-160.210000
102012-12-180.288000
112016-12-202.226000
122017-12-193.846000
132007-12-130.236000
142011-12-150.244000
152019-12-121.827000
162021-12-093.469000
172009-12-170.239000
182014-12-182.279000
192018-12-134.743000
202023-12-123.729000
212024-12-105.992000