f/overrides/event-backup/abasx-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

515 B

1DateDividends
22005-06-080.755000
32010-12-210.014000
42013-12-202.061000
52018-12-132.125000
62019-12-120.799000
72022-12-081.480000
82024-12-122.979000
92002-12-230.070000
102008-12-220.088000
112009-12-220.041000
122011-12-220.944000
132017-12-141.468000
142023-12-071.337000
152025-12-111.199000
162003-12-260.403000
172004-12-211.200000
182005-12-161.991000
192006-12-141.805000
202007-12-211.390000
212014-12-182.878000
222012-12-200.890000
232015-12-171.137000
242016-12-150.760000
252020-12-100.109000
262021-12-092.399000