f/gxf-dividend.csv at bb8e39605ef99b652f313b9fbf152f26d568e613

gmp/f

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

2.6 KiB

Raw Blame History

1	Date	Dividends	ctime
2	2009-12-29	0.01	2017-08-30 11:45:35
3	2010-12-29	0.165	2017-08-30 11:45:35
4	2011-12-28	0.59	2017-08-30 11:45:35
5	2012-12-27	0.495	2019-10-19 09:44:01
6	2012-12-27	0.495255	2017-08-30 11:45:35
7	2013-12-27	0.627	2019-10-19 09:44:01
8	2013-12-27	0.627136	2017-08-30 11:45:35
9	2014-12-29	0.849	2019-10-19 09:44:01
10	2014-12-29	0.848855	2017-08-30 11:45:35
11	2015-12-29	0.632	2019-10-19 09:44:01
12	2015-12-29	0.631706	2017-08-30 11:45:35
13	2016-12-28	0.718	2019-10-19 09:44:01
14	2016-12-28	0.718259	2018-04-30 11:53:31
15	2016-12-28	0.718	2017-10-20 09:54:16
16	2016-12-28	0.718259	2017-08-30 11:45:35
17	2017-12-28	0.827	2018-01-16 07:54:11
18	2018-12-28	0.694	2019-01-04 11:16:02
19	2019-06-27	0.521	2019-07-02 10:25:49
20	2018-12-28	0.694	2019-07-02 10:25:49
21	2019-12-30	0.019	2019-12-31 10:58:18
22	2010-12-29	0.165	2019-12-31 10:58:18
23	2011-12-28	0.59	2019-12-31 10:58:18
24	2012-12-27	0.495	2019-12-31 10:58:18
25	2013-12-27	0.627	2019-12-31 10:58:18
26	2014-12-29	0.849	2019-12-31 10:58:18
27	2015-12-29	0.632	2019-12-31 10:58:18
28	2016-12-28	0.718	2019-12-31 10:58:18
29	2017-12-28	0.827	2019-12-31 10:58:18
30	2019-06-27	0.521	2019-12-31 10:58:18
31	2018-12-28	0.694	2019-12-31 10:58:18
32	2020-06-29	0.125	2020-07-09 10:54:47
33	2019-12-30	0.019	2020-07-09 10:54:47
34	2014-12-29	0.849	2020-07-09 10:54:47
35	2015-12-29	0.632	2020-07-09 10:54:47
36	2016-12-28	0.718	2020-07-09 10:54:47
37	2017-12-28	0.827	2020-07-09 10:54:47
38	2019-06-27	0.521	2020-07-09 10:54:47
39	2018-12-28	0.694	2020-07-09 10:54:47
40	2009-12-29	0.01	2020-07-09 10:54:47
41	2010-12-29	0.165	2020-07-09 10:54:47
42	2011-12-28	0.59	2020-07-09 10:54:47
43	2012-12-27	0.495	2020-07-09 10:54:47
44	2013-12-27	0.627	2020-07-09 10:54:47
45	2020-12-30	0.182	2021-03-01 22:16:32
46	2014-12-29	0.849	2021-03-01 22:16:32
47	2015-12-29	0.632	2021-03-01 22:16:32
48	2016-12-28	0.718	2021-03-01 22:16:32
49	2017-12-28	0.827	2021-03-01 22:16:32
50	2019-06-27	0.521	2021-03-01 22:16:32
51	2018-12-28	0.694	2021-03-01 22:16:32
52	2009-12-29	0.01	2021-03-01 22:16:32
53	2010-12-29	0.165	2021-03-01 22:16:32
54	2011-12-28	0.59	2021-03-01 22:16:32
55	2012-12-27	0.495	2021-03-01 22:16:32
56	2013-12-27	0.627	2021-03-01 22:16:32
57	2021-06-29	0.313	2021-07-12 21:48:45
58	2020-12-30	0.182	2021-07-12 21:48:45
59	2014-12-29	0.849	2021-07-12 21:48:45
60	2015-12-29	0.632	2021-07-12 21:48:45
61	2016-12-28	0.718	2021-07-12 21:48:45
62	2017-12-28	0.827	2021-07-12 21:48:45
63	2019-06-27	0.521	2021-07-12 21:48:45
64	2018-12-28	0.694	2021-07-12 21:48:45
65	2009-12-29	0.01	2021-07-12 21:48:45
66	2010-12-29	0.165	2021-07-12 21:48:45
67	2011-12-28	0.59	2021-07-12 21:48:45
68	2012-12-27	0.495	2021-07-12 21:48:45
69	2013-12-27	0.627	2021-07-12 21:48:45

2.6 KiB Raw Blame History

2.6 KiB

Raw Blame History