f/overrides/event-backup/gegax-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

855 B

1DateDividends
22005-03-240.005850
32015-06-190.051000
42011-09-160.043872
52016-12-220.111000
62019-12-200.227000
72005-09-230.007310
82009-09-180.022670
92013-06-140.069000
102015-09-180.062000
112004-12-280.624452
122010-06-180.057034
132014-12-220.463000
142020-12-220.138000
152022-12-210.171000
162005-12-281.165545
172006-09-220.030710
182010-12-170.000731
192013-09-130.005000
202018-12-200.146000
212021-12-221.940000
222024-12-200.160000
232025-12-191.017000
242001-09-260.001462
252003-12-260.008040
262006-12-272.037877
272012-03-160.001462
282012-12-200.152000
292013-12-200.076000
302014-09-120.062000
312015-12-180.135000
322004-09-240.026320
332008-09-190.027050
342011-06-170.054109
352011-12-200.010968
362017-12-210.159000
372010-09-170.034367
382014-06-130.075000
392023-12-210.116000
402005-06-240.019740
412006-03-240.016820
422006-06-230.024130
432009-06-190.041680