f/ncoax-dividend.csv at 19b33d5a18a5f2c124bf1e0a7de3acea9d711f4b

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

3.9 KiB

Raw Blame History

1	Date	Dividends
2	2022-05-31	0.069000
3	2024-10-31	0.108000
4	2017-09-29	0.107000
5	2020-01-31	0.086000
6	2010-11-30	0.115000
7	2012-05-31	0.113000
8	2012-08-31	0.113000
9	2014-06-30	0.104000
10	2016-02-29	0.104000
11	2017-06-30	0.115000
12	2025-04-30	0.115000
13	2025-12-31	0.108000
14	2021-10-29	0.074000
15	2024-07-31	0.108000
16	2012-03-30	0.113000
17	2012-09-28	0.113000
18	2013-07-31	0.113000
19	2013-10-31	0.113000
20	2013-12-13	0.145000
21	2014-02-28	0.107000
22	2024-08-30	0.108000
23	2025-05-30	0.115000
24	2018-02-28	0.107000
25	2019-03-29	0.086000
26	2013-02-28	0.113000
27	2013-11-29	0.107000
28	2014-03-31	0.107000
29	2014-08-29	0.104000
30	2016-09-30	0.107000
31	2016-11-30	0.115000
32	2022-07-29	0.069000
33	2023-02-28	0.092000
34	2026-04-30	0.100000
35	2023-10-31	0.105000
36	2024-04-30	0.105000
37	2011-06-30	0.098000
38	2014-05-30	0.104000
39	2015-02-27	0.104000
40	2015-03-31	0.104000
41	2016-12-30	0.115000
42	2021-07-30	0.086000
43	2011-12-30	0.113000
44	2025-08-29	0.115000
45	2015-06-30	0.104000
46	2015-07-31	0.104000
47	2018-12-31	0.086000
48	2021-05-28	0.086000
49	2023-03-31	0.092000
50	2026-01-30	0.108000
51	2014-10-31	0.104000
52	2019-11-29	0.086000
53	2021-11-30	0.069000
54	2026-05-29	0.100000
55	2024-09-30	0.108000
56	2010-12-31	0.115000
57	2011-07-29	0.098000
58	2014-12-15	0.119000
59	2017-04-28	0.115000
60	2019-05-31	0.086000
61	2023-08-31	0.105000
62	2012-10-31	0.113000
63	2012-11-30	0.113000
64	2019-04-30	0.086000
65	2020-05-29	0.086000
66	2020-12-31	0.086000
67	2024-03-28	0.105000
68	2013-12-31	0.107000
69	2014-07-31	0.104000
70	2019-06-28	0.086000
71	2023-07-31	0.099000
72	2011-04-29	0.098000
73	2017-10-31	0.107000
74	2018-05-31	0.086000
75	2021-12-31	0.069000
76	2022-10-31	0.077000
77	2024-02-29	0.105000
78	2013-03-28	0.113000
79	2016-04-29	0.104000
80	2018-03-29	0.090000
81	2019-02-28	0.086000
82	2025-01-31	0.108000
83	2012-01-31	0.113000
84	2017-01-31	0.115000
85	2019-12-31	0.086000
86	2023-05-31	0.099000
87	2017-07-31	0.115000
88	2019-12-30	0.181000
89	2012-04-30	0.113000
90	2012-07-31	0.113000
91	2012-12-14	0.104000
92	2015-10-30	0.104000
93	2016-05-31	0.107000
94	2017-05-31	0.115000
95	2025-02-28	0.115000
96	2023-06-30	0.099000
97	2024-11-29	0.108000
98	2010-12-13	0.105000
99	2016-12-29	0.147000
100	2017-03-31	0.115000
101	2021-02-26	0.086000
102	2021-06-30	0.086000
103	2022-06-30	0.069000
104	2011-09-30	0.113000
105	2022-08-31	0.077000
106	2022-09-30	0.077000
107	2025-03-31	0.115000
108	2025-06-30	0.115000
109	2011-03-31	0.098000
110	2013-06-28	0.113000
111	2016-08-31	0.107000
112	2018-04-30	0.090000
113	2023-04-28	0.092000
114	2026-02-27	0.100000
115	2012-12-31	0.113000
116	2018-06-29	0.086000
117	2019-01-31	0.086000
118	2020-02-28	0.086000
119	2024-12-31	0.108000
120	2011-11-30	0.113000
121	2014-12-31	0.104000
122	2016-06-30	0.107000
123	2017-12-29	0.107000
124	2018-01-31	0.107000
125	2018-12-28	0.057000
126	2014-09-30	0.104000
127	2023-09-29	0.105000
128	2019-09-30	0.086000
129	2024-05-31	0.108000
130	2010-10-01	0.115000
131	2011-08-31	0.113000
132	2014-04-30	0.107000
133	2015-04-30	0.104000
134	2018-07-31	0.086000
135	2019-07-31	0.086000
136	2022-02-28	0.069000
137	2023-01-31	0.080000
138	2018-10-31	0.086000
139	2020-07-31	0.086000
140	2022-12-30	0.077000
141	2026-07-31	0.100000
142	2013-04-30	0.113000
143	2015-09-30	0.104000
144	2016-01-29	0.104000
145	2025-09-30	0.115000
146	2011-02-28	0.098000
147	2011-05-31	0.098000
148	2019-10-31	0.086000
149	2020-04-30	0.086000
150	2020-10-30	0.086000
151	2026-06-30	0.100000
152	2013-08-30	0.113000
153	2015-05-29	0.104000
154	2018-09-28	0.086000
155	2019-08-30	0.086000
156	2020-08-31	0.086000
157	2020-09-30	0.086000
158	2011-10-31	0.113000
159	2014-11-28	0.104000
160	2015-12-31	0.104000
161	2017-08-31	0.107000
162	2018-08-31	0.086000
163	2020-03-31	0.086000
164	2024-06-28	0.108000
165	2025-10-31	0.115000
166	2016-03-31	0.104000
167	2020-11-30	0.086000
168	2021-01-29	0.086000
169	2021-04-30	0.086000
170	2022-01-31	0.069000
171	2023-11-30	0.105000
172	2025-11-28	0.108000
173	2026-03-31	0.100000
174	2018-11-30	0.086000
175	2020-06-30	0.086000
176	2012-06-29	0.113000
177	2014-01-31	0.107000
178	2015-01-30	0.104000
179	2015-12-30	0.080000
180	2016-07-29	0.107000
181	2017-02-28	0.115000
182	2024-01-31	0.105000
183	2012-02-29	0.113000
184	2015-08-31	0.104000
185	2021-03-31	0.086000
186	2022-11-30	0.080000
187	2023-12-29	0.105000
188	2025-07-31	0.115000
189	2021-08-31	0.074000
190	2021-09-30	0.074000
191	2011-01-31	0.115000
192	2013-01-31	0.113000
193	2013-05-31	0.113000
194	2013-09-30	0.113000
195	2016-10-31	0.107000
196	2017-11-30	0.107000
197	2022-03-31	0.069000
198	2022-04-29	0.069000

3.9 KiB Raw Blame History

3.9 KiB

Raw Blame History