f/overrides/event-backup/fbiix-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

595 B

1DateDividends
22025-12-170.219000
32026-04-010.075000
42021-12-280.013000
52022-07-010.022000
62024-10-040.041000
72025-04-040.067000
82020-04-030.008000
92023-07-070.030000
102024-12-180.147000
112020-07-100.008000
122022-04-010.017000
132024-04-050.033000
142020-02-140.020000
152023-12-200.121000
162024-02-090.059000
172019-12-270.017000
182021-04-050.015000
192021-10-010.016000
202026-07-100.049000
212021-07-020.018000
222022-10-070.027000
232023-10-060.035000
242025-07-110.045000
252020-10-020.007000
262022-12-210.024000
272024-07-050.040000
282020-12-290.033000
292023-04-050.076000
302025-10-030.044000