f/overrides/event-backup/mmtrs-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
22024-06-210.477000
32012-06-040.509000
42015-03-260.278000
52017-12-150.817000
62019-12-190.993000
72025-12-172.351000
82011-03-240.857000
92013-03-140.289000
102018-03-190.260000
112026-06-230.336000
122016-06-170.532000
132019-09-200.978000
142020-03-180.798000
152022-06-160.260000
162023-09-221.425000
172012-12-100.222000
182020-09-230.772000
192021-09-210.778000
202023-12-200.641000
212019-03-220.287000
222021-03-190.827000
232010-12-221.123000
242012-03-150.838000
252014-12-170.726000
262021-06-210.567000
272022-03-280.559000
282024-09-201.335000
292026-03-241.243000
302011-06-060.526000
312018-06-151.082000
322020-06-180.546000
332011-09-081.233000
342012-09-050.763000
352014-03-282.291000
362023-03-230.666000
372015-06-170.315000
382011-12-080.768000
392024-03-210.560000
402016-12-150.824000
412021-12-170.817000
422016-03-220.215000
432020-12-210.727000
442023-06-220.379000
452014-10-080.082000
462017-09-150.255000
472022-12-200.655000
482019-06-194.242000
492015-12-160.764000
502016-09-140.978000
512018-09-240.520000
522018-12-180.983000
532015-09-171.329000
542017-03-140.286000