f/overrides/event-backup/lmesx-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

455 B

1DateDividends
22010-12-290.238000
32014-12-230.259000
42016-12-210.296000
52023-12-131.393000
62013-12-110.742000
72017-12-061.528000
82020-12-041.292000
92016-12-070.478000
102019-12-051.958000
112011-12-280.247000
122012-12-270.280000
132013-12-260.252000
142014-12-100.729000
152015-12-220.277000
162022-12-132.494000
172024-12-123.250000
182025-12-115.025000
192009-12-290.199000
202012-12-120.047000
212015-12-090.749000
222018-12-061.555000
232021-12-032.299000