f/overrides/event-backup/lmbmx-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

615 B

1DateDividends
22016-12-210.759000
32013-12-111.143000
42014-06-180.376000
52020-06-180.056000
62020-12-220.446000
72015-06-240.147000
82017-06-130.070000
92024-06-130.054000
102012-12-270.117000
112019-06-200.140000
122024-12-170.524000
132025-12-160.963000
142023-12-150.360000
152026-06-120.287000
162012-06-190.014000
172015-12-220.031000
182017-12-201.172000
192018-12-191.204000
202023-06-150.140000
212014-12-101.156000
222019-12-180.067000
232025-06-130.039000
242013-06-180.031000
252013-12-270.086000
262021-06-170.207000
272021-12-223.053000
282014-12-230.031000
292015-12-090.737000
302022-06-170.219000
312022-12-150.431000