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f/overrides/event-backup/aznax-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

4.4 KiB
Raw Blame History

1DateDividends
22015-12-170.088000
32010-03-180.088000
42010-09-160.088000
52010-11-180.088000
62011-05-190.088000
72012-08-160.088000
82008-04-170.088000
92012-10-180.088000
102019-09-190.070000
112023-02-160.070000
122010-05-200.088000
132011-10-200.088000
142019-07-180.070000
152017-05-180.082000
162023-03-160.070000
172020-02-200.070000
182021-11-180.070000
192014-06-190.088000
202026-06-180.070000
212026-04-160.070000
222008-08-210.088000
232009-12-170.082000
242014-12-180.088000
252016-03-170.088000
262025-10-160.070000
272022-09-220.070000
282012-09-200.088000
292013-08-220.088000
302023-01-190.070000
312009-02-190.088000
322015-10-220.088000
332018-10-180.077000
342026-07-160.070000
352026-03-190.070000
362009-10-220.088000
372013-12-190.088000
382024-04-180.070000
392024-09-190.070000
402025-08-210.070000
412022-01-200.070000
422025-03-200.070000
432025-05-220.070000
442009-11-190.088000
452019-02-210.078000
462022-03-170.070000
472011-12-150.025000
482018-07-190.078000
492022-04-210.070000
502015-04-160.088000
512019-08-220.070000
522020-10-220.070000
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552022-10-200.070000
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602020-07-160.070000
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1332023-07-200.070000
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2162022-11-170.070000
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2202008-12-110.384000
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2242017-03-160.083000
2252019-01-170.078000
2262020-12-170.070000