f/overrides/event-backup/fidu-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

1.0 KiB

1DateDividends
22019-09-200.186000
32020-09-180.144000
42015-03-200.112000
52017-12-150.132000
62020-12-180.138000
72022-06-170.192000
82019-06-210.162000
92021-09-170.156000
102022-03-180.169000
112024-06-210.209000
122017-03-170.155000
132018-09-210.159000
142013-12-200.074000
152015-06-190.137000
162017-09-150.204000
172019-03-150.186000
182019-12-200.170000
192018-03-160.156000
202023-09-150.194000
212026-06-180.213000
222014-09-190.086000
232015-09-180.164000
242025-12-190.143000
252021-12-300.011000
262018-06-150.161000
272014-06-200.111000
282015-12-180.117000
292016-09-160.146000
302023-03-170.186000
312025-03-210.209000
322025-06-200.212000
332013-12-270.010000
342018-12-210.177000
352021-03-190.154000
362024-12-200.384000
372015-12-290.009000
382020-06-190.135000
392021-06-180.153000
402024-03-150.187000
412024-09-200.220000
422016-06-170.144000
432019-12-300.025000
442026-03-200.265000
452014-12-190.134000
462016-12-160.135000
472017-06-160.130000
482022-09-160.194000
492025-09-190.280000
502020-03-200.185000
512023-06-160.211000
522014-03-210.115000
532022-12-160.198000
542023-12-150.277000