f/overrides/event-backup/dfvqx-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

1.3 KiB

1DateDividends
22014-06-090.162000
32016-12-140.108000
42022-09-290.112000
52010-09-080.027000
62012-09-100.033000
72012-12-120.101000
82015-09-090.042000
92022-03-300.028000
102009-06-090.089000
112015-06-080.152000
122017-12-140.201000
132019-09-270.053000
142017-03-300.001000
152020-12-140.093000
162024-09-270.122000
172021-09-290.067000
182022-06-290.112000
192024-12-130.165000
202011-09-080.056000
212013-12-110.157000
222018-06-280.102000
232016-03-300.042000
242017-09-280.049000
252021-03-300.024000
262021-06-290.105000
272022-12-120.072000
282024-03-270.020000
292012-06-080.139000
302014-12-150.177000
312019-03-280.001000
322020-06-290.094000
332023-12-130.195000
342010-12-090.140000
352015-12-150.096000
362018-12-170.466000
372025-09-290.135000
382017-06-290.142000
392019-12-160.099000
402025-12-150.219000
412009-12-090.035000
422011-03-080.020000
432019-06-270.173000
442020-09-290.040000
452024-06-270.174000
462025-03-280.030000
472009-03-100.008000
482013-09-100.027000
492016-06-290.141000
502025-06-270.198000
512013-06-100.152000
522014-09-090.045000
532021-12-130.467000
542023-03-300.019000
552023-09-280.078000
562009-09-090.028000
572011-06-080.143000
582014-03-100.021000
592026-03-300.034000
602026-06-290.225000
612011-12-130.236000
622012-03-080.010000
632020-03-300.001000
642008-12-100.026000
652013-03-080.006000
662016-09-290.026000
672018-09-270.053000
682023-06-290.171000