f/overrides/event-backup/flv-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

515 B

1DateDividends
22022-03-220.330000
32022-06-210.290000
42023-03-230.323000
52023-09-210.340000
62024-06-240.356000
72024-09-230.213000
82024-12-170.425000
92020-09-220.226000
102026-03-100.207000
112025-03-250.312000
122021-09-210.304000
132022-09-200.338000
142023-06-200.303000
152025-09-230.218000
162025-12-160.464000
172020-06-230.055000
182021-03-230.258000
192021-06-220.274000
202021-12-161.645000
212023-12-180.298000
222026-06-090.406000
232020-12-170.191000
242024-03-210.386000
252025-06-240.446000
262022-12-151.973000