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bb8e39605e
f/overrides/event-backup/mipzx-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

795 B
Raw Blame History

1DateDividends
22026-07-310.037000
32013-12-180.617000
42016-12-190.285000
52018-12-140.320000
62022-12-130.360000
72025-04-300.035000
82025-09-300.032000
92024-07-310.035000
102024-12-310.030000
112025-01-310.025000
122025-12-310.031000
132017-12-180.297000
142025-03-310.040000
152026-02-270.022000
162026-04-300.033000
172026-06-300.045000
182023-12-120.280000
192024-09-300.032000
202024-11-290.028000
212025-11-280.026000
222025-07-310.032000
232025-08-290.034000
242025-10-310.031000
252011-12-190.510000
262012-12-190.506000
272021-12-150.809000
282024-08-300.029000
292024-10-310.029000
302025-05-300.031000
312025-12-120.045000
322026-05-290.043000
332014-12-170.255000
342020-12-110.609000
352015-12-170.120000
362019-12-130.220000
372025-02-280.025000
382025-06-300.034000
392026-01-300.015000
402026-03-310.032000