f/overrides/event-backup/mfwlx-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
22018-06-270.132000
32018-09-260.069000
42013-03-270.039000
52017-12-210.314000
62025-12-111.246000
72021-09-230.061000
82022-06-230.014000
92014-03-270.051000
102017-09-270.081000
112026-03-260.066000
122016-06-280.046000
132023-09-210.079000
142024-09-260.079000
152013-12-100.222000
162019-03-270.045000
172022-09-220.015000
182012-12-110.147000
192020-12-171.211000
202025-06-260.151000
212015-12-100.677000
222016-12-130.134000
232019-09-260.055000
242021-06-240.102000
252013-06-260.046000
262016-03-290.015000
272020-03-260.065000
282020-09-240.072000
292023-06-220.090000
302024-06-250.077000
312012-09-250.042000
322014-12-110.352000
332018-12-200.342000
342019-06-260.122000
352026-06-250.120000
362025-03-250.049000
372025-09-250.108000
382017-06-280.105000
392019-12-190.653000
402022-03-240.013000
412024-12-121.288000
422015-09-280.030000
432016-09-270.043000
442024-03-260.073000
452022-12-150.438000
462014-09-250.080000
472017-03-290.013000
482021-12-161.734000
492023-03-230.035000
502023-12-140.480000
512020-06-250.066000
522021-03-250.070000
532013-09-250.040000
542014-06-260.094000
552015-03-260.017000
562018-03-270.063000