f/overrides/event-backup/labax-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

1.2 KiB

1DateDividends
22012-03-220.027000
32023-09-260.111000
42023-03-240.085000
52019-12-180.063000
62015-12-210.089000
72011-09-220.075000
82019-09-250.068000
92014-12-180.149000
102017-12-200.061000
112023-06-260.105000
122012-12-240.108000
132012-06-210.092000
142012-09-200.057000
152017-06-280.066000
162024-09-260.108000
172025-03-250.105000
182011-06-230.073000
192014-09-230.070000
202015-09-290.067000
212020-06-240.057000
222022-09-260.076000
232022-12-210.135000
242013-06-200.066000
252018-12-190.115000
262024-03-250.117000
272025-09-260.100000
282026-06-250.127000
292010-12-300.001000
302017-09-280.047000
312018-03-260.062000
322018-06-260.077000
332021-06-240.040000
342024-12-200.164000
352013-09-240.098000
362017-03-290.079000
372021-12-210.071000
382022-06-240.073000
392016-09-300.017000
402013-03-210.041000
412015-03-300.133000
422021-09-240.050000
432024-06-260.122000
442011-03-240.034000
452014-06-190.032000
462015-06-250.061000
472018-09-250.075000
482020-03-250.042000
492020-09-240.051000
502014-03-200.074000
512023-12-190.185000
522016-03-300.073000
532025-12-220.122000
542026-03-250.122000
552011-12-290.132000
562016-06-300.037000
572016-12-200.078000
582019-03-260.066000
592019-06-250.076000
602020-12-180.060000
612021-03-240.040000
622022-03-240.061000
632013-12-180.021000
642025-06-260.113000