f/overrides/event-backup/flvcx-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

995 B

1DateDividends
22020-12-180.010000
32024-09-134.433000
42008-12-300.010000
52013-12-060.117000
62009-09-110.079000
72017-12-011.232000
82022-12-161.148000
92023-09-083.045000
102023-12-151.205000
112004-09-031.000000
122006-12-080.380000
132010-09-080.036000
142015-09-111.860000
152022-09-094.623000
162025-09-120.891000
172004-12-290.020000
182006-09-081.140000
192011-12-090.291000
202012-12-070.103000
212016-09-162.557000
222003-09-050.100000
232003-12-050.170000
242019-12-200.033000
252020-09-110.034000
262004-12-030.140000
272005-12-090.160000
282007-12-140.400000
292012-12-270.020000
302013-09-060.155000
312016-12-026.591000
322021-09-102.371000
332025-12-191.185000
342001-09-070.090000
352001-12-140.110000
362008-12-120.091000
372014-09-050.163000
382014-12-050.181000
392018-12-141.029000
402021-12-171.630000
412005-09-090.440000
422005-12-290.020000
432009-12-110.035000
442010-12-100.071000
452015-12-041.000000
462017-09-155.152000
472018-09-143.738000
482024-12-201.126000
492007-09-071.380000
502008-09-120.287000