f/overrides/event-backup/dfspx-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

1.4 KiB

1DateDividends
22012-03-080.016000
32014-06-090.125000
42016-06-290.109000
52016-12-150.050000
62023-09-280.056000
72014-09-090.042000
82015-06-080.128000
92025-09-290.104000
102011-03-080.022000
112018-12-180.060000
122022-06-290.129000
132024-09-270.084000
142021-09-290.061000
152022-03-300.018000
162015-03-090.010000
172016-09-290.027000
182018-06-280.137000
192021-03-300.022000
202022-12-140.040000
212023-06-290.150000
222025-12-150.193000
232010-03-090.010000
242011-06-080.114000
252013-06-100.128000
262017-12-150.071000
272021-06-290.124000
282020-03-300.010000
292020-06-290.063000
302021-12-150.141000
312012-06-080.109000
322012-09-100.030000
332017-03-300.019000
342019-06-270.146000
352019-09-270.045000
362026-06-290.192000
372020-09-290.047000
382026-03-300.019000
392008-12-100.041000
402010-09-080.021000
412013-12-120.068000
422017-09-280.042000
432018-09-270.041000
442008-06-100.115000
452011-09-080.032000
462015-12-160.044000
472010-12-090.058000
482013-09-100.038000
492023-12-130.093000
502009-06-090.081000
512012-12-130.054000
522014-03-100.066000
532019-12-170.070000
542024-12-130.129000
552025-03-280.024000
562025-06-270.171000
572010-06-080.083000
582011-12-130.063000
592013-03-080.010000
602017-06-290.125000
612024-03-270.019000
622019-03-280.017000
632009-03-100.010000
642009-09-090.027000
652009-12-090.041000
662014-12-160.049000
672016-03-300.036000
682008-09-090.025000
692015-09-090.033000
702020-12-160.055000
712022-09-290.054000
722023-03-300.019000
732024-06-270.150000