f/overrides/event-backup/dhlax-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

835 B

1DateDividends
22009-12-300.014000
32016-12-290.240000
42024-12-122.947000
52024-12-300.378000
62025-12-300.064000
72006-12-120.116000
82008-12-300.143000
92019-12-300.262000
102013-12-300.166000
112019-12-121.037000
122015-12-170.850000
132015-12-300.176000
142017-12-140.995000
152020-12-140.730000
162005-12-300.058000
172007-12-120.821000
182012-12-280.255000
192013-12-170.857000
202014-12-170.810000
212014-12-300.192000
222018-12-280.260000
232010-12-300.105000
242011-12-290.169000
252020-12-300.185000
262021-12-300.213000
272023-12-280.236000
282008-12-160.102000
292018-12-130.719000
302016-12-151.212000
312021-12-142.372000
322023-12-140.739000
332005-12-070.037000
342006-12-290.139000
352017-12-280.203000
362022-12-141.496000
372007-12-280.191000
382010-04-300.022000
392022-12-290.334000
402025-12-121.875000
412003-12-310.042000
422004-12-310.014000