f/overrides/event-backup/dfwix-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
22025-06-270.160000
32017-09-280.067000
42019-03-280.005000
52020-09-290.049000
62022-09-290.135000
72021-03-300.047000
82024-03-270.026000
92025-03-280.033000
102026-03-300.034000
112014-09-090.053000
122015-03-090.015000
132019-12-170.063000
142020-12-160.060000
152014-03-100.040000
162018-09-270.071000
172020-06-290.085000
182023-06-290.171000
192019-09-270.059000
202025-09-290.139000
212026-06-290.168000
222013-06-100.130000
232015-09-090.046000
242018-06-280.121000
252018-12-180.160000
262014-12-160.023000
272015-12-160.047000
282022-12-140.073000
292023-09-280.102000
302023-03-300.027000
312023-12-130.133000
322024-06-270.154000
332024-12-130.141000
342017-12-150.094000
352021-06-290.123000
362022-03-300.034000
372022-06-290.114000
382017-03-300.014000
392017-06-290.120000
402021-12-150.122000
412013-09-100.045000
422015-06-080.111000
432016-09-290.044000
442016-12-150.064000
452019-06-270.150000
462020-03-300.033000
472021-09-290.104000
482024-09-270.112000
492013-12-120.067000
502014-06-090.127000
512016-03-300.035000
522016-06-290.112000
532025-12-150.208000