f/overrides/event-backup/jhqrx-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

1015 B

1DateDividends
22026-03-270.056000
32016-06-280.066000
42019-04-290.041000
52023-03-290.068000
62023-12-200.110000
72024-09-260.080000
82024-12-190.101000
92015-09-280.048000
102015-12-210.078000
112022-03-290.047000
122022-09-280.083000
132025-09-260.088000
142017-03-290.056000
152018-12-280.003000
162019-09-260.069000
172025-06-260.079000
182024-03-260.063000
192025-03-270.070000
202019-06-260.069000
212020-03-270.055000
222020-09-280.107000
232021-09-280.065000
242021-12-200.078000
252022-12-200.102000
262026-06-260.062000
272024-06-260.080000
282015-06-260.058000
292016-03-290.050000
302020-06-260.079000
312020-12-180.078000
322021-03-290.052000
332023-06-280.080000
342014-12-190.065000
352015-03-270.046000
362017-09-270.050000
372017-12-200.069000
382018-03-270.051000
392025-12-180.077000
402022-06-280.074000
412016-09-280.085000
422016-12-200.071000
432017-06-280.057000
442018-06-270.063000
452018-12-190.068000
462021-06-280.062000
472014-12-300.005000
482018-09-260.067000
492019-03-270.063000
502019-12-190.083000
512023-09-270.084000