f/overrides/event-backup/dhlyx-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

535 B

1DateDividends
22013-12-300.238000
32014-12-300.274000
42015-12-300.266000
52019-12-300.375000
62023-12-140.739000
72024-12-300.528000
82025-12-121.875000
92015-12-170.850000
102016-12-290.331000
112019-12-121.037000
122021-12-300.353000
132022-12-290.465000
142024-12-122.947000
152013-12-170.857000
162014-12-170.810000
172017-12-140.995000
182018-12-280.374000
192025-12-300.214000
202023-12-280.500000
212016-12-151.212000
222017-12-280.302000
232018-12-130.719000
242020-12-140.730000
252020-12-300.362000
262021-12-142.372000
272022-12-141.496000