f/overrides/event-backup/fkmcx-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

755 B

1DateDividends
22012-12-270.057000
32016-06-101.864000
42023-06-090.122000
52026-06-122.587000
62011-12-160.148000
72013-06-070.312000
82017-06-090.903000
92019-12-201.811000
102022-12-160.325000
112009-12-180.089000
122013-12-130.940000
132014-06-062.836000
142018-12-074.075000
152012-12-140.608000
162015-12-111.726000
172016-12-091.031000
182020-06-050.927000
192020-12-181.607000
202021-06-043.277000
212023-12-150.969000
222010-04-090.032000
232011-06-101.435000
242014-12-121.048000
252021-12-172.155000
262022-06-101.733000
272025-06-130.691000
282008-12-190.101000
292012-06-080.585000
302015-06-053.019000
312019-06-070.598000
322024-06-142.250000
332010-12-170.051000
342017-12-081.901000
352018-06-081.630000
362024-12-201.536000
372010-06-110.079000
382025-12-190.173000