f/overrides/event-backup/cevyx-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

1.1 KiB

1DateDividends
22013-03-220.048000
32023-03-160.053000
42018-09-190.081000
52019-06-130.576000
62020-06-150.513000
72021-09-170.100000
82014-06-201.056000
92020-12-170.508000
102025-03-180.037000
112016-09-190.056000
122021-03-160.060000
132014-09-190.051000
142022-03-160.052000
152026-03-170.115000
162015-03-180.047000
172024-12-180.542000
182015-09-170.070000
192017-03-170.060000
202019-12-130.531000
212022-09-190.065000
222025-06-170.230000
232016-06-170.106000
242017-12-150.100000
252018-06-150.489000
262024-03-180.078000
272024-06-180.595000
282013-12-170.545000
292016-03-170.042000
302021-12-200.600000
312024-09-180.090000
322022-12-190.111000
332023-09-190.072000
342026-06-160.518000
352015-06-180.281000
362017-06-160.036000
372019-09-180.099000
382013-09-240.043000
392014-03-190.055000
402018-03-160.047000
412018-12-170.622000
422020-03-170.076000
432020-09-180.049000
442023-12-190.332000
452025-12-171.040000
462014-12-100.869000
472017-09-190.090000
482019-03-180.063000
492021-06-160.817000
502025-09-170.089000
512022-06-160.689000
522016-12-160.116000
532013-06-240.050000
542015-12-160.193000
552023-06-160.341000