f/overrides/event-backup/fsvlx-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
21999-12-170.400000
32004-12-178.130000
42009-04-170.290000
52011-04-060.005000
62011-12-090.203000
71997-12-193.500000
82009-12-110.170000
91992-06-120.040000
102001-12-210.110000
112004-04-081.520000
122006-12-156.550000
132010-04-090.040000
142014-12-192.300000
151989-12-150.430000
162014-04-111.022000
172018-04-060.681000
182019-04-050.014000
191989-06-130.100000
201996-04-040.900000
211997-04-112.630000
222012-12-270.011000
231990-12-140.140000
241992-12-110.250000
252017-12-150.240000
262003-12-192.050000
271991-12-130.140000
281993-04-080.110000
291995-12-080.920000
302000-12-290.020000
312019-12-200.300000
322021-04-090.015000
331996-12-061.580000
342002-04-120.100000
352008-12-120.450000
362012-04-130.003000
372000-12-220.210000
382005-04-150.250000
392007-04-131.230000
402008-04-110.160000
411994-04-151.170000
421999-04-090.480000
432013-12-201.654000
442015-04-100.779000
452006-04-130.700000
462016-12-160.207000
472000-04-140.100000
482003-04-110.080000
492005-12-167.590000
502016-04-150.307000
511987-12-153.500000
521993-12-171.300000
531994-12-162.550000
542002-12-200.900000
552020-04-080.052000
562021-12-173.478000
571988-12-150.130000
581998-04-091.450000
592007-12-141.430000
602012-12-210.240000
612013-04-121.076000
622017-04-070.016000
632001-04-123.290000
642010-12-100.235000
652015-12-180.500000
662018-12-140.474000
672020-12-180.290000