f/overrides/event-backup/jpus-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

755 B

1DateDividends
22024-03-190.379000
32021-12-210.693000
42023-03-210.357000
52023-06-200.591000
62025-12-230.904000
72026-06-230.677000
82020-06-230.444000
92023-12-190.801000
102024-09-240.586000
112021-09-210.413000
122023-09-190.575000
132024-06-250.635000
142025-06-240.693000
152021-03-230.292000
162018-12-240.417000
172022-06-210.515000
182022-09-200.530000
192018-03-210.218000
202018-06-260.347000
212019-12-230.605000
222020-03-240.322000
232020-12-220.486000
242024-12-240.824000
252026-03-240.540000
262016-12-230.459000
272017-12-260.879000
282018-09-250.421000
292019-03-200.269000
302019-06-250.443000
312020-09-220.374000
322021-06-220.369000
332025-09-230.678000
342015-12-240.260000
352022-03-220.355000
362022-12-200.831000
372025-03-250.537000
382019-09-240.350000