f/overrides/event-backup/dprdx-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

775 B

1DateDividends
22023-03-220.082000
32025-06-200.109000
42026-06-220.130000
52017-03-220.060000
62017-09-220.069000
72022-09-220.126000
82023-12-180.112000
92024-06-210.094000
102018-12-210.055000
112019-09-200.040000
122020-06-220.074000
132020-09-220.046000
142022-12-161.393000
152018-09-210.090000
162020-03-200.048000
172022-03-220.074000
182023-06-220.058000
192024-03-220.162000
202025-03-210.068000
212025-09-220.116000
222019-06-210.069000
232021-03-220.046000
242019-12-190.318000
252020-12-180.051000
262021-12-170.679000
272022-06-220.123000
282016-09-220.056000
292017-12-220.257000
302016-12-222.881000
312018-03-220.102000
322024-09-200.063000
332024-12-160.017000
342026-03-200.113000
352019-03-220.074000
362021-09-220.081000
372021-06-220.076000
382017-06-220.069000
392018-06-220.080000