f/overrides/event-backup/lsvgx-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

455 B

1DateDividends
22020-12-300.211000
32021-12-220.152000
42022-12-220.182000
52025-12-170.681000
62025-12-300.455000
72014-12-220.011000
82016-12-200.074000
92017-12-200.039000
102018-12-200.267000
112023-12-280.366000
122024-12-230.396000
132015-12-180.102000
142015-12-300.149000
152022-12-290.286000
162023-12-220.038000
172019-12-300.247000
182021-12-300.127000
192024-12-270.386000
202014-12-300.050000
212016-12-290.197000
222017-12-280.207000
232018-12-280.201000