f/overrides/event-backup/goiux-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
22018-06-280.044000
32021-12-100.442000
42025-12-300.201000
52017-06-300.041000
62017-09-290.058000
72018-09-270.044000
82018-12-280.245000
92022-03-300.036000
102015-12-300.379000
112016-03-300.011000
122016-09-290.020000
132024-12-060.463000
142025-09-290.069000
152026-03-300.092000
162022-09-290.046000
172023-03-300.061000
182024-09-270.072000
192023-12-280.068000
202020-09-290.037000
212021-03-300.052000
222021-06-290.019000
232022-06-290.063000
242022-12-070.227000
252023-06-290.078000
262024-06-270.085000
272024-12-300.372000
282016-12-290.116000
292019-03-280.048000
302021-12-300.563000
312025-12-050.976000
322016-06-290.021000
332017-12-280.257000
342020-03-300.051000
352023-09-280.086000
362025-06-270.070000
372018-03-290.043000
382019-09-270.033000
392020-06-290.032000
402020-12-100.263000
412020-12-300.159000
422026-06-290.076000
432017-03-300.024000
442019-06-270.027000
452019-12-300.222000
462022-12-230.407000
472024-03-270.063000
482025-03-280.129000
492015-09-290.026000
502017-09-280.058000
512021-09-290.037000