f/overrides/event-backup/averx-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

695 B

1DateDividends
21990-01-180.300000
31996-12-312.062000
41999-12-311.233000
52013-12-300.525000
62014-12-302.138000
72015-12-300.230000
81993-01-250.020000
92017-12-282.021000
102024-12-307.915000
111987-01-090.100000
121989-01-120.140000
131997-12-313.141000
142005-12-292.664000
152012-12-280.230000
162020-12-300.747000
171984-12-140.040000
181991-01-250.100000
191992-01-240.170000
202006-12-283.571000
212011-12-290.067000
222000-12-290.949000
232004-12-294.614000
242010-12-300.107000
252018-12-280.663000
261985-12-130.080000
272003-12-312.295000
282021-12-302.522000
292022-12-290.394000
302001-12-312.672000
312010-04-300.014000
322023-12-281.876000
332007-12-280.546000
342008-12-300.068000
352025-12-300.228000