f/overrides/event-backup/ksdvx-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
22020-03-270.090000
32023-06-280.024000
42023-09-270.137000
52012-06-290.074000
62012-12-310.534000
72010-09-300.030000
82014-12-290.072000
92015-06-300.072000
102016-09-300.069000
112016-12-150.305000
122023-03-290.168000
132017-09-290.032000
142021-03-290.043000
152021-12-292.113000
162016-06-300.079000
172016-12-270.075000
182017-12-151.127000
192019-03-270.093000
202020-06-260.034000
212024-06-260.081000
222025-03-270.065000
232010-12-310.432000
242022-03-290.081000
252025-09-260.071000
262011-12-300.347000
272013-06-280.041000
282015-12-280.088000
292018-09-280.036000
302022-09-280.129000
312022-12-281.936000
322025-12-290.593000
332013-09-300.051000
342014-03-310.046000
352014-09-300.055000
362023-12-270.511000
372024-09-260.076000
382011-03-310.021000
392016-03-310.093000
402018-06-290.066000
412024-03-260.049000
422026-06-260.088000
432011-06-300.039000
442015-09-300.039000
452015-12-160.644000
462019-12-270.080000
472020-09-280.059000
482012-03-300.045000
492014-06-300.066000
502022-06-280.068000
512018-03-290.086000
522019-06-060.313000
532024-12-271.648000
542025-06-260.074000
552026-03-270.125000
562017-12-280.060000
572021-06-280.047000
582011-09-300.049000
592012-09-280.034000
602013-12-310.624000
612018-11-281.419000
622019-09-260.109000
632021-09-280.050000
642013-03-280.045000
652014-12-150.913000
662015-03-310.078000
672017-03-310.075000
682017-06-300.060000
692020-12-290.074000