f/overrides/event-backup/aepgx-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

1.2 KiB

1DateDividends
21993-06-110.070000
31993-12-100.170000
42005-12-272.043000
52023-12-141.796000
61994-12-160.280000
71995-12-150.420000
82000-11-073.740000
92004-12-170.509000
102017-06-141.087000
111988-06-030.020000
121989-06-020.065000
131988-12-090.160000
141991-12-130.250000
151996-12-130.750000
161998-06-050.690000
172021-06-143.046000
182024-12-192.245000
192026-06-153.717000
201995-06-020.070000
211996-05-310.570000
221999-06-040.255000
232000-12-110.190000
242007-12-124.638000
252018-06-131.624000
262009-12-240.622000
271997-05-300.970000
282022-12-150.578000
292023-06-120.155000
301986-05-080.085000
311987-12-110.215000
321992-05-290.030000
332003-12-180.310000
341999-12-151.425000
352024-06-101.339000
362025-06-091.664000
371990-06-010.085000
381992-12-110.225000
392002-12-190.242000
402006-12-263.482000
412013-12-260.450000
422019-12-191.517000
431990-12-130.240000
441991-05-310.045000
452001-12-190.655000
462010-12-270.570000
472012-12-260.691000
482022-06-130.268000
491997-12-121.410000
502008-12-232.164000
512017-12-211.531000
522016-12-220.560000
532018-12-201.234000
541987-05-140.110000
551989-12-070.215000
561994-05-270.040000
571998-12-160.930000
582011-12-270.590000
592015-12-231.385000
602019-06-120.036000
612020-12-170.120000
622025-12-186.621000
632014-12-260.650000
642021-12-163.306000