f/overrides/event-backup/dfesx-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
22014-12-160.073000
32017-09-280.127000
42022-12-120.127000
52021-03-300.011000
62012-09-100.077000
72013-06-100.086000
82019-06-270.079000
92020-09-290.115000
102011-06-080.047000
112014-06-090.063000
122014-09-090.112000
132023-12-110.171000
142025-03-280.028000
152025-06-270.120000
162009-03-100.012000
172009-09-090.047000
182010-06-080.083000
192022-09-290.159000
202013-09-100.083000
212016-03-300.030000
222018-06-280.059000
232022-06-290.092000
242020-12-140.043000
252024-03-270.018000
262015-09-090.102000
272016-06-290.080000
282019-09-270.171000
292020-06-290.081000
302024-06-270.092000
312007-03-080.030000
322010-09-080.059000
332017-03-300.005000
342023-09-280.140000
352013-12-120.076000
362023-03-300.031000
372011-12-130.073000
382016-09-290.065000
392026-06-290.123000
402013-03-080.006000
412016-12-150.052000
422018-09-270.137000
432026-03-300.028000
442008-09-090.099000
452009-06-090.072000
462009-12-090.049000
472010-03-090.005000
482023-06-290.109000
492020-03-300.019000
502007-06-080.102000
512007-09-100.076000
522008-06-100.110000
532010-12-090.702000
542025-12-100.181000
552011-09-080.146000
562015-06-080.063000
572015-12-160.053000
582022-03-300.022000
592019-12-160.081000
602021-06-290.101000
612021-09-290.147000
622025-09-290.175000
632007-12-191.145000
642012-06-080.036000
652017-06-290.079000
662018-12-180.098000
672008-12-100.050000
682024-09-270.146000
692024-12-100.202000
702008-03-100.016000
712012-12-130.406000
722017-12-150.092000
732021-12-130.120000