f/overrides/event-backup/eufn-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

675 B

1DateDividends
22011-12-200.059000
32012-12-180.168000
42014-06-250.572000
52022-06-090.670000
62023-06-070.729000
72020-06-150.171000
82023-12-200.320000
92024-06-110.773000
102025-06-160.809000
112019-06-170.705000
122013-06-270.273000
132018-12-180.275000
142020-12-140.071000
152021-06-100.419000
162013-12-180.127000
172016-12-210.098000
182026-06-151.137000
192015-12-210.163000
202017-12-190.156000
212019-12-160.182000
222022-12-130.072000
232025-12-160.516000
242011-06-220.528000
252012-06-210.408000
262014-12-170.166000
272015-06-250.578000
282016-06-220.667000
292024-12-170.475000
302010-06-230.199000
312010-12-210.183000
322017-06-200.553000
332018-06-190.824000
342021-12-130.414000