f/bcrh-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

4.2 KiB

Raw Blame History

1	Date	Dividends	ctime
2	2016-03-29	0.3	2017-08-22
3	2017-03-29	0.3	2017-08-22
4	2015-02-25	0.66	2017-08-22
5	2014-07-11	0.3	2017-08-22
6	2016-02-25	1.24	2017-08-22
7	2016-06-28	0.3	2017-08-22
8	2017-06-28	0.3	2017-08-22
9	2015-03-27	0.3	2017-08-22
10	2015-09-28	0.3	2017-08-22
11	2016-09-28	0.3	2017-08-22
12	2015-06-26	0.3	2017-08-22
13	2017-02-24	0.59	2017-08-22
14	2014-09-26	0.3	2017-08-22
15	2014-04-11	0.3	2017-08-22
16	2017-09-28	0.3	2017-09-28 06:48:39
17	2015-06-26	0.3	2017-10-20 09:54:16
18	2017-02-24	0.59	2017-10-20 09:54:16
19	2014-09-26	0.3	2017-10-20 09:54:16
20	2014-04-11	0.3	2017-10-20 09:54:16
21	2018-03-28	0.3	2018-04-13 15:05:34
22	2015-02-25	0.66	2018-04-13 15:05:34
23	2014-07-11	0.3	2018-04-13 15:05:34
24	2016-02-25	1.24	2018-04-13 15:05:34
25	2016-06-28	0.3	2018-04-13 15:05:34
26	2017-06-28	0.3	2018-04-13 15:05:34
27	2015-03-27	0.3	2018-04-13 15:05:34
28	2015-09-28	0.3	2018-04-13 15:05:34
29	2016-09-28	0.3	2018-04-13 15:05:34
30	2017-09-28	0.3	2018-04-13 15:05:34
31	2015-06-26	0.3	2018-04-13 15:05:34
32	2017-02-24	0.59	2018-04-13 15:05:34
33	2014-09-26	0.3	2018-04-13 15:05:34
34	2014-04-11	0.3	2018-04-13 15:05:34
35	2018-06-28	0.3	2018-12-20 11:23:51
36	2015-03-27	0.3	2018-12-20 11:23:51
37	2015-09-28	0.3	2018-12-20 11:23:51
38	2016-09-28	0.3	2018-12-20 11:23:51
39	2017-09-28	0.3	2018-12-20 11:23:51
40	2018-09-27	0.3	2018-12-20 11:23:51
41	2015-06-26	0.3	2018-12-20 11:23:51
42	2017-02-24	0.59	2018-12-20 11:23:51
43	2014-09-26	0.3	2018-12-20 11:23:51
44	2014-04-11	0.3	2018-12-20 11:23:51
45	2019-03-28	0.15	2019-05-09 11:16:22
46	2015-02-25	0.66	2019-05-09 11:16:22
47	2014-07-11	0.3	2019-05-09 11:16:22
48	2016-02-25	1.24	2019-05-09 11:16:22
49	2016-06-28	0.3	2019-05-09 11:16:22
50	2017-06-28	0.3	2019-05-09 11:16:22
51	2018-06-28	0.3	2019-05-09 11:16:22
52	2015-03-27	0.3	2019-05-09 11:16:22
53	2015-09-28	0.3	2019-05-09 11:16:22
54	2016-09-28	0.3	2019-05-09 11:16:22
55	2017-09-28	0.3	2019-05-09 11:16:22
56	2018-09-27	0.3	2019-05-09 11:16:22
57	2015-06-26	0.3	2019-05-09 11:16:22
58	2017-02-24	0.59	2019-05-09 11:16:22
59	2014-09-26	0.3	2019-05-09 11:16:22
60	2014-04-11	0.3	2019-05-09 11:16:22
61	2019-06-27	0.15	2019-07-02 10:25:49
62	2015-03-27	0.3	2019-07-02 10:25:49
63	2015-09-28	0.3	2019-07-02 10:25:49
64	2016-09-28	0.3	2019-07-02 10:25:49
65	2017-09-28	0.3	2019-07-02 10:25:49
66	2018-09-27	0.3	2019-07-02 10:25:49
67	2015-06-26	0.3	2019-07-02 10:25:49
68	2017-02-24	0.59	2019-07-02 10:25:49
69	2014-09-26	0.3	2019-07-02 10:25:49
70	2014-04-11	0.3	2019-07-02 10:25:49
71	2019-09-13	1.51	2019-09-17 10:49:56
72	2019-03-28	0.15	2019-09-17 10:49:56
73	2015-02-25	0.66	2019-09-17 10:49:56
74	2014-07-11	0.3	2019-09-17 10:49:56
75	2016-02-25	1.24	2019-09-17 10:49:56
76	2016-06-28	0.3	2019-09-17 10:49:56
77	2017-06-28	0.3	2019-09-17 10:49:56
78	2018-06-28	0.3	2019-09-17 10:49:56
79	2019-06-27	0.15	2019-09-17 10:49:56
80	2015-03-27	0.3	2019-09-17 10:49:56
81	2015-09-28	0.3	2019-09-17 10:49:56
82	2016-09-28	0.3	2019-09-17 10:49:56
83	2017-09-28	0.3	2019-09-17 10:49:56
84	2018-09-27	0.3	2019-09-17 10:49:56
85	2015-06-26	0.3	2019-09-17 10:49:56
86	2017-02-24	0.59	2019-09-17 10:49:56
87	2014-09-26	0.3	2019-09-17 10:49:56
88	2014-04-11	0.3	2019-09-17 10:49:56
89	2019-12-05	0.57	2020-03-03 11:53:28
90	2016-03-29	0.3	2020-03-03 11:53:28
91	2017-03-29	0.3	2020-03-03 11:53:28
92	2018-03-28	0.3	2020-03-03 11:53:28
93	2019-09-13	1.51	2020-03-03 11:53:28
94	2019-03-28	0.15	2020-03-03 11:53:28
95	2015-02-25	0.66	2020-03-03 11:53:28
96	2014-07-11	0.3	2020-03-03 11:53:28
97	2016-02-25	1.24	2020-03-03 11:53:28
98	2016-06-28	0.3	2020-03-03 11:53:28
99	2017-06-28	0.3	2020-03-03 11:53:28
100	2018-06-28	0.3	2020-03-03 11:53:28
101	2019-06-27	0.15	2020-03-03 11:53:28
102	2015-03-27	0.3	2020-03-03 11:53:28
103	2015-09-28	0.3	2020-03-03 11:53:28
104	2016-09-28	0.3	2020-03-03 11:53:28
105	2017-09-28	0.3	2020-03-03 11:53:28
106	2018-09-27	0.3	2020-03-03 11:53:28
107	2015-06-26	0.3	2020-03-03 11:53:28
108	2017-02-24	0.59	2020-03-03 11:53:28
109	2014-09-26	0.3	2020-03-03 11:53:28
110	2014-04-11	0.3	2020-03-03 11:53:28
111	2020-03-18	6.0	2020-03-31 17:10:22
112	2017-06-28	0.3	2020-03-31 17:10:22
113	2018-06-28	0.3	2020-03-31 17:10:22
114	2019-06-27	0.15	2020-03-31 17:10:22
115	2015-03-27	0.3	2020-03-31 17:10:22
116	2015-09-28	0.3	2020-03-31 17:10:22
117	2016-09-28	0.3	2020-03-31 17:10:22
118	2017-09-28	0.3	2020-03-31 17:10:22
119	2018-09-27	0.3	2020-03-31 17:10:22
120	2015-06-26	0.3	2020-03-31 17:10:22
121	2017-02-24	0.59	2020-03-31 17:10:22
122	2014-09-26	0.3	2020-03-31 17:10:22
123	2014-04-11	0.3	2020-03-31 17:10:22

4.2 KiB Raw Blame History

4.2 KiB

Raw Blame History