f/overrides/event-backup/gseux-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

436 B

1DateDividends
22016-12-200.484000
32020-12-160.480000
42021-12-1415.569000
52023-12-131.206000
62025-12-117.877000
72015-12-101.188000
82020-12-142.232000
92021-12-160.464000
102023-12-180.415000
112024-12-129.809000
122018-12-190.355000
132017-12-114.384000
142018-12-111.651000
152019-03-270.064000
162022-12-160.542000
172024-12-170.341000
182025-12-160.399000
192015-12-210.561000
202017-12-200.639000
212019-12-180.898000
222016-12-091.385000