f/overrides/event-backup/gurax-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

935 B

1DateDividends
22026-06-250.143000
32014-12-310.195000
42017-12-291.177000
52018-12-310.391000
62019-06-280.135000
72025-09-250.155000
82022-06-300.113000
92023-12-290.233000
102024-03-280.161000
112016-03-310.127000
122017-03-310.065000
132017-09-290.116000
142018-03-290.096000
152021-12-311.843000
162025-06-250.112000
172018-09-280.155000
182022-12-301.487000
192024-09-300.193000
202024-12-230.915000
212015-12-314.662000
222016-12-300.967000
232017-06-300.128000
242019-09-300.103000
252020-03-310.147000
262016-06-300.060000
272021-03-310.121000
282021-06-300.124000
292025-12-260.361000
302019-12-311.523000
312020-06-300.102000
322020-09-300.147000
332021-09-300.102000
342026-03-260.019000
352023-06-300.207000
362024-06-280.287000
372014-06-300.060000
382018-06-290.130000
392020-12-311.930000
402022-03-310.101000
412022-09-300.215000
422025-03-260.064000
432014-09-300.027000
442016-09-300.078000
452019-03-290.184000
462023-03-310.206000
472023-09-290.221000