f/overrides/event-backup/fsmdx-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

595 B

1DateDividends
22023-12-150.329000
32024-06-280.012000
42025-06-270.085000
52013-12-130.217000
62014-12-190.363000
72017-06-090.128000
82022-06-240.203000
92016-12-160.286000
102019-06-070.077000
112021-06-040.112000
122021-12-170.960000
132019-12-200.598000
142020-06-050.129000
152012-06-080.052000
162013-06-070.056000
172016-12-300.008000
182017-12-150.402000
192015-06-050.137000
202015-12-180.563000
212016-06-100.112000
222018-06-080.158000
232023-06-230.088000
242024-12-200.771000
252025-12-190.322000
262018-12-140.327000
272020-12-180.504000
282012-12-140.159000
292014-06-060.088000
302022-12-160.334000