f/overrides/event-backup/fyt-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

1.1 KiB

1DateDividends
22023-06-270.245000
32014-03-250.050000
42018-03-220.038000
52021-06-240.104000
62019-09-250.195000
72019-12-130.169000
82020-12-240.148000
92021-03-250.116000
102025-09-250.205000
112014-09-230.062000
122014-12-230.089000
132015-12-230.071000
142021-09-230.156000
152021-12-230.256000
162022-12-230.246000
172016-09-210.072000
182018-09-140.116000
192024-09-260.237000
202015-09-230.049000
212016-03-230.044000
222026-03-260.201000
232017-06-220.151000
242024-03-210.122000
252024-12-130.544000
262014-06-240.080000
272011-12-210.044000
282016-12-210.223000
292012-12-210.154000
302013-09-200.028000
312022-06-240.125000
322024-06-270.237000
332012-06-210.095000
342018-06-210.175000
352020-09-240.107000
362013-12-180.065000
372018-12-180.222000
382025-12-120.325000
392017-03-230.057000
402017-12-210.172000
412011-06-210.030000
422013-06-210.034000
432023-12-220.283000
442019-03-210.089000
452022-03-250.082000
462023-03-240.135000
472016-06-220.064000
482013-03-210.008000
492015-06-240.053000
502022-09-230.161000
512017-09-210.046000
522023-09-220.155000
532015-03-250.086000
542019-06-140.100000
552020-06-250.116000
562020-03-260.029000
572026-06-250.298000