f/overrides/event-backup/fiqdx-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

675 B

1DateDividends
22021-10-010.375000
32025-12-170.130000
42019-12-270.007000
52020-04-030.022000
62020-07-100.037000
72021-12-220.074000
82022-07-010.080000
92023-10-060.150000
102018-12-070.517000
112026-04-010.040000
122026-07-100.131000
132021-04-050.011000
142023-12-200.128000
152024-07-050.103000
162022-04-010.029000
172024-10-040.112000
182025-10-030.137000
192019-07-050.079000
202019-10-040.081000
212025-04-040.059000
222020-10-020.056000
232020-12-230.079000
242022-12-210.097000
252023-04-050.062000
262024-12-180.135000
272025-07-110.094000
282024-04-050.060000
292018-10-050.144000
302019-04-050.008000
312019-12-060.090000
322021-07-020.046000
332022-10-070.414000
342023-07-070.107000