f/overrides/event-backup/gwlix-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

695 B

1DateDividends
22007-06-220.029000
32011-06-170.126000
42011-12-140.052000
52016-12-220.132000
62007-12-210.020000
72013-12-200.064000
82014-06-130.164000
92015-06-190.139000
102015-12-180.043000
112004-12-280.036000
122006-12-270.022000
132012-12-200.034000
142014-12-190.028000
152015-09-180.033000
162017-12-211.334000
172011-09-160.031000
182019-12-200.466000
192025-12-190.300000
202008-06-160.054000
212014-03-140.252000
222015-03-200.033000
232021-12-221.938000
242024-12-200.086000
252009-03-200.025000
262012-03-160.067000
272018-12-201.076000
282023-12-210.090000
292006-06-230.033000
302006-09-220.032000
312008-12-190.027000
322012-06-150.114000
332013-09-130.035000
342014-09-120.030000
352022-12-212.974000