f/overrides/event-backup/jvayx-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

395 B

1DateDividends
22020-12-110.526000
32022-12-200.686000
42024-12-190.687000
52025-12-114.118000
62025-12-180.614000
72018-12-121.691000
82020-12-180.667000
92023-12-131.974000
102019-12-190.633000
112017-12-130.347000
122017-12-200.461000
132021-12-200.500000
142023-12-200.668000
152024-12-123.362000
162016-12-200.486000
172019-12-120.927000
182021-12-135.268000
192022-12-133.061000
202018-12-190.647000