f/overrides/event-backup/fllv-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

1.1 KiB

1DateDividends
22020-06-110.082252
32022-12-120.268943
42025-02-280.243492
52025-03-310.274568
62017-06-200.064860
72017-09-200.171163
82023-06-160.144570
92023-12-150.398426
102025-08-290.264970
112019-03-200.102035
122021-12-130.252265
132026-06-300.250000
142022-03-100.116451
152024-03-150.157383
162024-07-310.167174
172025-06-300.237793
182026-01-300.290000
192022-09-080.211194
202023-09-150.239348
212025-09-300.288630
222017-12-200.149510
232024-10-310.216108
242025-01-310.196694
252025-11-280.230000
262019-09-110.167717
272020-12-140.218270
282021-03-110.128884
292022-06-170.181148
302024-06-280.340880
312024-12-310.251068
322025-05-300.271993
332026-02-270.300000
342021-06-100.150212
352025-04-300.229194
362018-03-200.067311
372018-06-200.056918
382020-03-110.085920
392021-09-130.193462
402026-04-300.340000
412018-09-200.163656
422020-09-140.206406
432024-11-290.225750
442025-12-300.215000
452023-03-170.122775
462024-08-300.247248
472025-07-310.212060
482026-03-310.350000
492026-07-310.300000
502017-03-200.049183
512025-10-310.215000
522026-05-290.250000
532016-12-200.128915
542018-12-200.500405
552019-06-110.049684
562019-12-110.179780
572024-09-300.197160