f/overrides/event-backup/mbeqx-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

775 B

1DateDividends
22005-12-280.236000
32015-12-290.200000
42020-12-290.195000
52025-12-300.478000
62004-12-280.184000
72016-12-290.134000
82017-12-280.205000
92021-12-290.340000
102022-12-290.346000
111997-12-310.115000
122003-06-250.009000
132003-12-290.125000
142005-06-280.014000
152007-12-270.432000
162008-12-290.511000
172024-06-130.034000
182000-06-300.008000
192014-12-290.287000
202019-06-170.004000
211997-08-290.004000
222009-06-250.004000
232015-06-180.003000
242023-12-280.384000
252001-12-310.163000
262018-12-270.184000
272019-12-270.331000
282000-12-290.172000
291999-12-310.091000
302001-06-290.004000
312017-06-190.009000
321998-12-310.059000
332004-06-230.002000
342006-12-270.269000
352009-12-290.254000
362021-06-160.011000
372023-06-150.015000
382024-12-300.383000
391996-12-310.057000