f/overrides/event-backup/nugax-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
22021-12-300.146000
32023-03-310.087000
42013-03-280.105000
52014-12-150.301000
62015-06-300.240000
72016-03-310.085000
82017-06-300.666000
92021-09-300.115000
102024-12-162.212000
112026-03-310.058000
122012-12-280.309000
132013-12-300.087000
142014-06-300.249000
152015-09-300.106000
162018-03-290.063000
172019-03-290.106000
182020-03-310.110000
192018-06-290.213000
202019-06-280.199000
212019-12-300.064000
222023-06-300.147000
232025-06-300.224000
242016-09-300.142000
252016-12-290.070000
262019-09-300.126000
272022-03-310.100000
282025-03-310.079000
292025-12-153.408000
302018-09-280.138000
312022-12-150.366000
322021-03-310.107000
332014-12-300.039000
342015-03-310.081000
352019-12-160.267000
362022-12-290.455000
372024-06-280.189000
382024-12-300.058000
392013-06-280.212000
402018-12-170.582000
412022-06-300.128000
422026-06-300.182000
432017-09-290.091000
442017-12-280.064000
452020-06-300.141000
462020-09-300.165000
472023-09-290.117000
482013-12-130.170000
492017-03-310.137000
502021-06-300.159000
512022-09-300.097000
522023-12-280.059000
532014-03-310.399000
542015-12-300.003000
552018-12-280.116000
562024-03-280.076000
572013-09-300.112000
582014-09-300.145000
592024-09-300.076000
602025-09-300.051000
612025-12-300.189000
622016-06-300.173000
632017-12-153.250000
642020-12-300.071000
652021-12-151.936000
662023-12-150.006000