f/overrides/event-backup/ktrzx-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

975 B

1DateDividends
22026-03-240.077000
32017-03-240.060000
42018-06-220.087000
52020-03-240.075000
62018-09-210.097000
72018-12-310.015000
82019-03-220.087000
92020-12-150.052000
102022-09-230.066000
112014-12-160.834000
122016-06-230.072000
132017-09-220.088000
142024-12-161.219000
152025-03-240.092000
162025-06-230.097000
172022-12-150.065000
182023-12-150.074000
192024-06-210.105000
202020-06-230.079000
212021-12-150.870000
222026-06-230.098000
232017-06-230.070000
242018-12-170.177000
252019-09-230.087000
262023-09-220.079000
272015-03-240.088000
282016-03-230.061000
292019-06-210.087000
302022-03-240.049000
312022-06-230.076000
322023-06-230.082000
332024-03-210.089000
342024-09-230.106000
352015-06-230.103000
362021-03-240.052000
372021-09-230.073000
382016-09-230.056000
392018-03-220.087000
402019-12-160.084000
412025-09-230.107000
422025-12-150.630000
432015-09-230.103000
442015-12-150.085000
452020-09-230.072000
462023-03-240.061000
472016-12-150.076000
482017-12-150.771000
492021-06-230.078000