f/overrides/event-backup/fsta-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
22021-12-170.256000
32015-03-200.268000
42015-12-180.192000
52018-12-210.237000
62019-03-150.218000
72020-09-180.235000
82021-03-190.251000
92021-06-180.242000
102024-12-200.274000
112023-09-150.283000
122013-12-270.005000
132014-09-190.154000
142015-09-180.224000
152016-06-170.195000
162017-03-170.162000
172020-03-200.248000
182022-03-180.249000
192025-06-200.296000
202016-12-160.210000
212017-06-160.250000
222017-09-150.211000
232018-03-160.231000
242021-09-170.254000
252022-09-160.251000
262024-06-210.285000
272015-06-190.181000
282020-12-180.289000
292024-09-200.273000
302017-12-150.206000
312023-03-170.261000
322023-06-160.269000
332025-09-190.276000
342025-12-190.302000
352013-12-200.112000
362014-06-200.180000
372016-09-160.195000
382023-12-150.276000
392024-03-150.279000
402018-06-150.228000
412019-06-210.228000
422025-03-210.277000
432026-03-200.290000
442023-12-280.096000
452014-03-210.149000
462014-12-190.177000
472018-09-210.223000
482019-09-200.231000
492019-12-200.250000
502020-06-190.231000
512022-12-160.259000
522026-06-180.296000