f/overrides/event-backup/dgsfx-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
22023-09-280.116000
32024-06-270.088000
42024-09-270.136000
52025-06-270.106000
62026-03-300.051000
72018-12-180.024000
82021-12-150.158000
92022-12-140.123000
102019-09-270.046000
112021-09-290.007000
122025-09-290.131000
132026-06-290.112000
142019-03-280.045000
152019-12-170.227000
162020-12-160.196000
172024-12-130.174000
182025-12-150.154000
192019-06-270.043000
202022-09-290.054000
212023-12-130.273000