f/overrides/event-backup/aoa-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

1.4 KiB

1DateDividends
22011-06-270.250000
32017-07-060.397000
42009-03-260.110000
52010-09-270.086000
62013-07-020.327000
72016-07-060.403000
82024-04-020.205000
92009-06-250.208000
102016-12-280.363000
112019-04-020.179000
122023-10-030.225000
132014-12-260.306000
142017-04-040.127000
152017-12-282.062000
162015-12-280.287000
172025-07-020.621000
182009-09-240.101000
192011-12-270.235000
202015-07-020.419000
212019-12-240.542000
222020-07-020.357000
232015-10-020.132000
242016-10-040.139000
252018-12-280.350000
262012-12-260.277000
272018-10-020.168000
282019-10-020.181000
292024-07-020.547000
302025-10-020.254000
312008-12-260.172000
322012-03-270.103000
332012-06-260.286000
342014-10-020.147000
352018-07-030.483000
362020-10-020.159000
372021-04-050.114000
382022-07-050.514000
392011-09-270.139000
402013-10-020.138000
412013-12-270.229000
422023-04-040.184000
432026-04-020.276000
442022-12-230.379000
452024-10-020.267000
462010-06-250.205000
472014-07-020.418000
482021-12-230.566000
492023-12-220.627000
502025-04-020.218000
512026-07-020.676000
522011-03-280.105000
532015-04-020.125000
542021-10-040.153000
552010-03-260.066000
562025-12-230.856000
572009-12-280.193000
582012-09-260.143000
592017-10-030.157000
602021-07-020.383000
612010-12-270.203000
622013-04-020.128000
632020-12-240.421000
642022-10-040.196000
652024-12-200.741000
662018-04-030.149000
672019-07-020.548000
682020-04-020.162000
692014-04-020.137000
702022-04-040.168000
712023-07-050.499000