f/overrides/event-backup/ffalx-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

935 B

1DateDividends
22019-06-260.181000
32022-06-210.318000
42008-12-290.368000
52015-12-300.245000
62025-06-160.366000
72006-12-280.680000
82023-06-200.136000
92014-06-260.094000
102018-12-280.232000
112025-03-310.018000
122005-12-290.433000
132011-12-280.224000
142013-12-300.231000
152016-06-280.137000
162017-06-280.261000
172020-06-260.747000
182021-06-280.119000
192010-12-290.224000
202011-06-280.160000
212024-06-200.112000
222024-12-200.058000
232026-06-150.390000
242012-12-280.213000
252016-12-290.155000
262010-04-230.035000
272014-12-300.363000
282022-12-200.240000
292005-03-160.118000
302007-12-280.677000
312006-03-160.228000
322007-03-150.234000
332008-03-170.292000
342012-06-270.160000
352013-06-260.150000
362015-06-260.113000
372003-12-230.088000
382004-12-230.292000
392020-12-300.260000
402010-06-280.157000
412017-12-280.168000
422018-06-270.272000
432019-12-300.255000
442023-12-200.096000
452025-12-220.483000
462009-06-300.205000
472009-12-290.193000