f/overrides/event-backup/mxkwx-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

655 B

1DateDividends
22018-12-271.919000
32017-09-060.052000
42020-09-040.495000
52021-09-030.672000
62023-09-060.121000
72018-09-070.135000
82018-06-220.146000
92019-03-290.076000
102016-12-280.430000
112022-09-060.040000
122025-09-050.022000
132017-06-230.131000
142015-12-290.446000
152016-06-240.126000
162019-06-240.137000
172022-06-230.120000
182015-09-040.050000
192023-12-271.517000
202021-06-230.104000
212017-12-270.549000
222019-09-060.062000
232019-12-271.190000
242022-12-280.342000
252024-09-060.055000
262024-12-270.412000
272015-06-190.084000
282020-06-240.131000
292020-12-291.665000
302021-12-290.969000
312023-06-230.141000
322025-12-290.293000
332016-09-070.070000