f/accnx-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

4.8 KiB

Raw Blame History

1	Date	Dividends
2	2013-07-31	0.024000
3	2014-10-31	0.028000
4	2025-09-30	0.034000
5	2008-09-30	0.037000
6	2008-12-09	0.224000
7	2011-12-30	0.076000
8	2025-11-28	0.034000
9	2007-08-31	0.040000
10	2018-01-31	0.021000
11	2024-11-29	0.039000
12	2019-03-29	0.026000
13	2023-08-31	0.032000
14	2009-05-29	0.035000
15	2010-10-29	0.028000
16	2015-09-30	0.026000
17	2014-12-31	0.037000
18	2015-05-29	0.026000
19	2015-04-30	0.026000
20	2015-12-31	0.025000
21	2017-06-30	0.027000
22	2025-06-30	0.036000
23	2010-12-10	0.087000
24	2016-10-31	0.023000
25	2017-10-31	0.026000
26	2008-04-30	0.034000
27	2019-12-31	0.018000
28	2021-03-31	0.028000
29	2022-03-31	0.018000
30	2024-04-30	0.036000
31	2026-03-31	0.036000
32	2008-05-30	0.108000
33	2012-12-31	0.021000
34	2016-12-30	0.024000
35	2015-07-31	0.025000
36	2021-10-29	0.021000
37	2011-07-29	0.031000
38	2011-08-31	0.030000
39	2015-06-30	0.025000
40	2010-06-30	0.032000
41	2016-02-29	0.025000
42	2017-08-31	0.026000
43	2020-12-31	0.032000
44	2007-04-30	0.034000
45	2008-07-31	0.042000
46	2010-07-30	0.030000
47	2018-06-29	0.029000
48	2024-06-28	0.035000
49	2026-01-30	0.037000
50	2007-07-31	0.037000
51	2012-04-30	0.025000
52	2013-03-28	0.022000
53	2009-10-30	0.038000
54	2014-05-30	0.027000
55	2007-01-31	0.034000
56	2007-11-30	0.039000
57	2007-12-31	0.036000
58	2019-04-30	0.027000
59	2023-06-30	0.033000
60	2008-06-30	0.039000
61	2012-06-29	0.023000
62	2012-08-31	0.023000
63	2006-12-28	0.038000
64	2018-05-31	0.028000
65	2024-01-31	0.033000
66	2025-07-31	0.036000
67	2020-01-31	0.016000
68	2020-05-29	0.016000
69	2025-05-30	0.038000
70	2015-08-31	0.026000
71	2017-03-31	0.027000
72	2017-04-28	0.028000
73	2020-04-30	0.018000
74	2022-02-28	0.021000
75	2008-03-31	0.037000
76	2012-10-31	0.023000
77	2013-11-29	0.025000
78	2009-01-30	0.028000
79	2018-03-29	0.036000
80	2018-09-28	0.041000
81	2019-07-31	0.026000
82	2022-07-29	0.024000
83	2022-10-31	0.025000
84	2016-09-30	0.023000
85	2019-06-28	0.025000
86	2023-04-28	0.030000
87	2009-11-30	0.039000
88	2013-05-31	0.023000
89	2013-12-06	0.069000
90	2014-07-31	0.027000
91	2020-06-30	0.016000
92	2012-01-31	0.028000
93	2014-01-31	0.026000
94	2014-04-30	0.027000
95	2025-02-28	0.038000
96	2014-09-30	0.028000
97	2018-02-28	0.029000
98	2023-07-31	0.030000
99	2025-08-29	0.037000
100	2013-06-28	0.023000
101	2016-03-31	0.027000
102	2022-05-31	0.023000
103	2007-05-31	0.037000
104	2009-12-08	0.069000
105	2012-03-30	0.027000
106	2010-01-29	0.038000
107	2010-12-31	0.031000
108	2017-01-31	0.028000
109	2017-09-29	0.027000
110	2018-04-30	0.028000
111	2007-03-30	0.039000
112	2008-01-31	0.038000
113	2008-11-28	0.038000
114	2020-09-30	0.023000
115	2022-08-31	0.023000
116	2010-11-30	0.028000
117	2011-11-30	0.030000
118	2013-09-30	0.024000
119	2026-05-29	0.036000
120	2007-06-29	0.037000
121	2016-11-30	0.026000
122	2021-12-07	0.098000
123	2009-12-31	0.040000
124	2022-04-29	0.020000
125	2020-03-31	0.010000
126	2013-01-31	0.018000
127	2015-01-30	0.027000
128	2017-05-31	0.027000
129	2018-07-31	0.028000
130	2019-10-31	0.025000
131	2021-01-29	0.022000
132	2021-05-28	0.022000
133	2007-10-31	0.037000
134	2009-06-30	0.035000
135	2013-02-28	0.020000
136	2020-10-30	0.025000
137	2025-01-31	0.039000
138	2026-04-30	0.036000
139	2021-12-31	0.027000
140	2023-09-29	0.034000
141	2023-12-29	0.036000
142	2014-08-29	0.028000
143	2016-04-29	0.026000
144	2018-11-30	0.045000
145	2013-12-31	0.025000
146	2024-02-29	0.035000
147	2024-12-31	0.038000
148	2011-04-29	0.034000
149	2021-09-30	0.022000
150	2023-02-28	0.032000
151	2024-10-31	0.037000
152	2008-10-31	0.034000
153	2012-02-29	0.028000
154	2013-08-30	0.024000
155	2019-11-29	0.021000
156	2022-12-30	0.032000
157	2023-11-30	0.035000
158	2008-12-31	0.031000
159	2010-02-26	0.033000
160	2013-10-31	0.024000
161	2022-01-31	0.022000
162	2026-06-30	0.037000
163	2012-07-31	0.022000
164	2014-11-28	0.028000
165	2025-03-31	0.036000
166	2023-05-31	0.031000
167	2024-05-31	0.037000
168	2012-09-28	0.022000
169	2013-04-30	0.024000
170	2017-11-30	0.027000
171	2008-02-29	0.033000
172	2014-03-31	0.027000
173	2025-10-31	0.038000
174	2021-02-26	0.026000
175	2021-06-30	0.023000
176	2023-01-31	0.030000
177	2024-08-30	0.040000
178	2011-10-31	0.030000
179	2019-01-31	0.027000
180	2020-02-28	0.016000
181	2011-05-31	0.034000
182	2026-02-27	0.036000
183	2010-05-28	0.036000
184	2015-02-27	0.027000
185	2019-09-30	0.023000
186	2007-02-28	0.036000
187	2009-07-31	0.036000
188	2011-09-30	0.031000
189	2014-02-28	0.027000
190	2015-10-30	0.024000
191	2010-08-31	0.029000
192	2018-10-31	0.047000
193	2011-02-28	0.034000
194	2021-11-30	0.022000
195	2024-07-31	0.038000
196	2009-09-30	0.035000
197	2016-01-28	0.026000
198	2017-12-29	0.029000
199	2020-07-31	0.019000
200	2021-08-31	0.021000
201	2009-04-30	0.034000
202	2010-09-30	0.027000
203	2017-02-28	0.026000
204	2022-11-30	0.027000
205	2026-07-31	0.039000
206	2016-01-29	0.026000
207	2021-07-30	0.023000
208	2009-08-31	0.035000
209	2011-01-31	0.033000
210	2014-06-30	0.028000
211	2012-11-30	0.024000
212	2016-07-29	0.024000
213	2019-02-28	0.026000
214	2016-08-31	0.023000
215	2019-08-30	0.028000
216	2021-04-30	0.024000
217	2024-03-28	0.035000
218	2008-08-29	0.043000
219	2012-05-31	0.024000
220	2016-05-31	0.026000
221	2011-06-30	0.033000
222	2015-03-31	0.027000
223	2009-03-31	0.036000
224	2012-12-07	0.097000
225	2009-02-27	0.031000
226	2011-12-09	0.065000
227	2017-07-31	0.024000
228	2020-11-30	0.021000
229	2024-09-30	0.035000
230	2019-05-31	0.028000
231	2023-03-31	0.036000
232	2007-09-28	0.033000
233	2015-11-30	0.025000
234	2016-06-30	0.025000
235	2018-12-31	0.022000
236	2025-04-30	0.038000
237	2025-12-31	0.038000
238	2011-03-31	0.036000
239	2020-08-31	0.022000
240	2022-09-30	0.025000
241	2010-03-31	0.037000
242	2022-06-30	0.023000
243	2018-08-31	0.044000
244	2023-10-31	0.033000

4.8 KiB Raw Blame History

4.8 KiB

Raw Blame History