f/overrides/event-backup/fad-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
22018-09-140.014000
32025-09-250.076000
42011-06-210.020000
52012-12-210.192000
62014-12-230.111000
72018-06-210.035000
82014-06-240.050000
92022-12-230.278000
102016-03-230.051000
112016-12-210.167000
122020-09-240.076000
132023-09-220.069000
142025-06-260.069000
152011-12-210.073000
162012-06-210.076000
172014-09-230.034000
182020-06-250.065000
192018-12-180.065000
202021-12-230.114000
212026-03-260.022000
222008-12-230.030000
232013-09-200.054000
242016-06-220.065000
252017-03-230.010000
262007-12-210.032000
272019-09-250.116000
282023-12-220.192000
292024-09-260.385000
302022-06-240.102000
312020-12-240.053000
322013-12-180.025000
332023-03-240.204000
342024-12-130.311000
352013-06-210.040000
362017-06-220.039000
372017-12-210.062000
382019-12-130.161000
392015-09-230.020000
402018-03-220.011000
412017-09-210.034000
422019-03-210.063000
432019-06-140.030000
442026-06-250.071000
452013-03-210.022000
462015-03-250.062000
472020-03-260.137000
482024-06-270.052000
492023-06-270.113000
502008-06-230.013000
512014-03-250.021000
522016-09-210.051000
532022-03-250.064000
542015-12-230.088000
552022-09-230.124000
562025-12-120.009000
572009-06-230.036000
582010-12-210.089000
592015-06-240.034000