f/overrides/event-backup/jobyx-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

975 B

1DateDividends
22012-12-310.135000
32014-09-300.072000
42015-09-300.069000
52017-09-290.092000
62019-03-290.069000
72019-06-280.194000
82021-12-151.005000
92013-12-180.017000
102015-03-310.059000
112015-06-300.127000
122015-12-180.014000
132016-06-300.135000
142018-12-310.190000
152020-03-310.073000
162022-12-300.555000
172013-12-310.143000
182016-03-310.062000
192016-12-300.186000
202020-06-300.073000
212020-12-310.168000
222013-03-280.060000
232013-09-300.043000
242019-09-300.096000
252020-09-300.106000
262021-06-300.160000
272017-06-300.140000
282018-06-290.186000
292019-12-160.108000
302014-03-310.059000
312014-06-300.145000
322014-12-310.140000
332016-09-300.076000
342017-12-290.218000
352018-09-280.093000
362018-12-140.861000
372021-09-300.099000
382021-12-310.384000
392024-12-310.786000
402025-12-310.985000
412013-06-280.049000
422015-12-310.172000
432017-03-310.059000
442019-12-310.200000
452012-09-280.113000
462014-12-170.057000
472018-03-290.070000
482021-03-310.087000
492023-12-290.682000