f/overrides/event-backup/eaeax-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

475 B

1DateDividends
22010-12-220.026000
32011-12-280.052000
42015-12-231.036000
52022-12-270.201000
62023-12-280.162000
72002-10-220.058000
82008-12-230.055000
92010-04-300.022000
102013-12-230.759000
112014-12-231.011000
122018-12-200.395000
132020-12-230.152000
142005-12-210.314000
152012-12-270.827000
162006-12-200.396000
172007-12-240.984000
182009-12-230.104000
192016-12-220.193000
202017-12-210.631000
212019-12-190.434000
222021-12-210.813000
232024-12-300.288000
242025-12-301.658000