f/overrides/event-backup/mlvtx-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

995 B

1DateDividends
22017-12-210.267000
32019-09-260.047000
42017-09-270.050000
52017-06-280.054000
62018-09-260.056000
72020-03-260.058000
82024-09-260.062000
92024-12-122.357000
102025-06-260.071000
112025-12-112.604000
122016-12-130.089000
132015-12-100.117000
142020-06-250.058000
152022-09-220.061000
162025-03-250.066000
172014-12-110.046000
182016-06-280.044000
192017-03-290.037000
202022-03-240.047000
212022-12-152.135000
222026-06-250.050000
232015-09-280.034000
242021-09-230.042000
252023-09-210.057000
262020-12-170.077000
272019-03-270.047000
282019-12-190.069000
292020-09-240.056000
302021-03-250.048000
312021-12-161.058000
322023-03-230.047000
332023-06-220.051000
342016-09-270.045000
352024-06-250.056000
362026-03-260.031000
372024-03-260.056000
382015-03-260.037000
392018-12-200.531000
402022-06-230.056000
412023-12-141.059000
422014-09-250.036000
432015-06-250.038000
442016-03-290.038000
452018-03-270.036000
462018-06-270.062000
472019-06-260.044000
482021-06-240.050000
492025-09-250.065000
502014-06-260.034000