f/overrides/event-backup/ieur-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
22016-06-220.948000
32017-06-200.791000
42017-12-190.531000
52019-12-160.396000
62021-12-130.719000
72022-06-091.111000
82015-06-250.898000
92015-12-210.281000
102026-06-151.542000
112022-12-130.340000
122023-06-071.175000
132021-12-300.077000
142024-12-170.718000
152025-12-160.849000
162019-06-171.231000
172020-12-140.497000
182025-06-161.261000
192023-12-200.568000
202024-06-111.192000
212018-06-191.226000
222018-12-180.329000
232020-06-150.595000
242021-06-100.876000
252014-12-170.281000
262016-12-210.352000