f/overrides/event-backup/dffvx-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

1.8 KiB

1DateDividends
22016-06-290.062000
32019-06-270.079000
42000-12-180.552000
52006-03-080.010000
62015-09-090.068000
72010-06-080.013000
82017-03-300.061000
92021-03-300.102000
102022-03-300.057000
112023-09-280.111000
122005-09-080.090000
132007-09-100.079000
142008-12-100.063000
152025-03-280.142000
162022-12-141.149000
172007-03-080.014000
182018-03-280.036000
192022-06-290.102000
202021-09-290.103000
212009-09-090.025000
222017-06-290.061000
232020-03-300.076000
242013-06-100.047000
252020-09-290.074000
262020-12-160.147000
272024-09-270.123000
282025-06-270.160000
292002-12-161.433000
302011-09-080.032000
312012-03-080.007000
322020-06-290.062000
332023-12-130.387000
342024-12-130.120000
352005-12-191.572000
362009-03-100.021000
372019-09-270.085000
382010-03-090.007000
392010-09-080.030000
402014-12-161.105000
412016-03-300.054000
422018-12-181.002000
432004-06-080.015000
442004-12-201.564000
452005-06-080.006000
462023-06-290.121000
472025-09-290.183000
482026-06-290.183000
492012-06-080.054000
502013-12-121.382000
512014-03-100.014000
522023-03-300.102000
532024-03-270.106000
542006-12-180.493000
552009-06-090.026000
562011-06-080.025000
572024-06-270.133000
582016-12-150.849000
592007-12-190.040000
602012-12-131.141000
612014-09-090.050000
622009-12-090.038000
632018-06-280.066000
642015-12-160.979000
652019-03-280.067000
662021-12-152.161000
672001-12-170.867000
682004-09-080.014000
692006-06-080.056000
702017-09-280.071000
712022-09-290.109000
722026-03-300.150000
732003-12-221.762000
742013-09-100.039000
752014-06-090.054000
762017-12-151.196000
772025-12-150.139000
782006-09-080.053000
792007-06-080.042000
802015-06-080.072000
812021-06-290.087000
822012-09-100.027000
832015-03-090.036000
842019-12-170.653000
852010-12-090.090000
862011-12-130.179000
872016-09-290.053000
882018-09-270.077000
892008-03-100.029000
902008-06-100.034000
912008-09-090.044000