f/overrides/event-backup/kmdnx-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

1.3 KiB

1DateDividends
22015-09-290.065000
32011-06-290.170000
42012-09-270.102000
52020-03-300.117000
62023-03-300.123000
72024-03-280.189000
82024-09-270.158000
92025-12-300.102000
102009-12-300.243000
112017-06-280.083000
122021-03-300.077000
132012-06-270.103000
142013-12-300.335000
152019-09-260.117000
162024-12-300.121000
172010-09-290.074000
182012-12-270.227000
192010-12-300.407000
202014-09-290.132000
212014-12-300.223000
222017-12-280.084000
232021-12-290.007000
242008-12-300.004000
252010-06-290.085000
262020-09-280.074000
272013-09-260.055000
282015-06-300.066000
292019-06-260.114000
302022-12-290.076000
312018-03-280.122000
322018-06-280.113000
332022-06-290.038000
342022-09-290.058000
352016-09-270.092000
362020-06-290.082000
372021-09-290.046000
382023-09-280.156000
392026-03-300.139000
402015-12-300.010000
412018-12-280.111000
422023-06-290.109000
432016-03-310.110000
442017-09-280.110000
452020-12-300.058000
462015-03-310.102000
472019-12-300.101000
482016-06-290.120000
492023-12-280.132000
502011-03-300.018000
512011-09-290.068000
522017-03-300.167000
532025-09-290.127000
542013-06-260.065000
552014-03-270.015000
562019-03-270.119000
572021-06-290.046000
582022-03-300.049000
592012-03-300.113000
602013-03-280.076000
612024-06-270.154000
622025-06-270.134000
632026-06-290.118000
642011-12-290.155000
652018-09-270.108000
662016-12-300.109000
672025-03-280.159000
682010-03-310.087000
692014-06-260.134000