f/overrides/event-backup/flia-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

775 B

1DateDividends
22022-08-010.135000
32026-06-010.038000
42018-08-310.057000
52019-05-310.046000
62020-08-310.021000
72025-10-010.019000
82025-07-010.018000
92025-08-010.018000
102019-12-300.518000
112020-07-310.024000
122025-06-020.019000
132025-11-030.020000
142018-09-280.047000
152018-12-280.066000
162024-12-130.602000
172023-12-150.191000
182019-02-280.048000
192022-07-010.135000
202022-11-010.129000
212020-05-290.025000
222022-09-010.132000
232018-07-310.037000
242018-10-310.043000
252019-03-290.053000
262021-12-170.553000
272022-10-030.129000
282022-12-010.131000
292025-12-190.399000
302026-08-030.037000
312018-11-300.049000
322019-01-310.034000
332020-06-300.020000
342025-09-020.018000
352025-12-010.019000
362026-07-010.038000
372019-04-300.043000
382020-09-300.021000
392022-12-162.690000