f/erc-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

5.5 KiB

Raw Blame History

1	Date	Dividends
2	2026-03-12	0.073000
3	2026-05-11	0.073000
4	2009-03-11	0.108000
5	2023-05-11	0.066000
6	2014-05-12	0.100000
7	2018-12-14	0.104000
8	2019-05-13	0.101000
9	2007-12-13	0.108000
10	2010-02-11	0.108000
11	2011-08-11	0.100000
12	2014-06-12	0.100000
13	2022-12-12	0.072000
14	2025-03-13	0.073000
15	2003-12-29	0.050000
16	2006-06-12	0.117000
17	2010-06-11	0.108000
18	2010-09-13	0.108000
19	2014-10-14	0.100000
20	2020-04-13	0.099000
21	2005-08-11	0.117000
22	2008-05-12	0.108000
23	2016-01-14	0.097000
24	2017-03-13	0.104000
25	2023-01-12	0.071000
26	2006-02-10	0.117000
27	2014-01-13	0.100000
28	2011-07-11	0.100000
29	2012-11-13	0.100000
30	2013-01-11	0.100000
31	2018-08-14	0.107000
32	2019-07-11	0.100000
33	2019-10-15	0.099000
34	2006-09-11	0.117000
35	2009-09-14	0.108000
36	2020-08-13	0.095000
37	2025-12-11	0.072000
38	2026-02-12	0.072000
39	2003-07-16	0.135000
40	2013-07-11	0.100000
41	2007-09-13	0.108000
42	2020-06-12	0.097000
43	2020-10-13	0.093000
44	2022-05-12	0.094000
45	2023-07-13	0.065000
46	2026-07-10	0.073000
47	2004-01-13	0.131000
48	2005-10-13	0.117000
49	2019-04-11	0.101000
50	2024-12-12	0.073000
51	2025-10-14	0.072000
52	2012-07-12	0.100000
53	2014-08-11	0.100000
54	2017-11-14	0.108000
55	2022-02-11	0.096000
56	2026-08-13	0.073000
57	2016-10-13	0.092000
58	2017-02-13	0.103000
59	2007-03-12	0.108000
60	2014-07-11	0.100000
61	2023-04-13	0.067000
62	2003-10-10	0.131000
63	2005-09-12	0.117000
64	2013-03-12	0.100000
65	2005-11-10	0.117000
66	2009-12-11	0.108000
67	2017-04-13	0.105000
68	2023-11-13	0.065000
69	2024-03-11	0.065000
70	2025-09-12	0.072000
71	2013-04-12	0.100000
72	2015-02-11	0.097000
73	2024-06-13	0.066000
74	2007-04-12	0.108000
75	2023-02-10	0.069000
76	2019-02-13	0.103000
77	2023-08-11	0.065000
78	2024-09-13	0.066000
79	2003-11-13	0.131000
80	2004-10-13	0.131000
81	2008-10-14	0.108000
82	2014-04-11	0.100000
83	2016-04-11	0.097000
84	2025-02-13	0.073000
85	2025-04-11	0.073000
86	2004-12-13	0.131000
87	2005-04-11	0.117000
88	2011-10-13	0.100000
89	2015-07-13	0.097000
90	2015-12-11	0.097000
91	2023-09-11	0.065000
92	2005-06-13	0.117000
93	2010-12-13	0.108000
94	2007-08-13	0.108000
95	2021-10-12	0.096000
96	2022-09-12	0.077000
97	2025-05-12	0.072000
98	2005-12-12	0.117000
99	2007-02-12	0.108000
100	2015-11-12	0.097000
101	2017-08-11	0.107000
102	2025-01-13	0.073000
103	2006-01-13	0.117000
104	2012-04-12	0.100000
105	2009-01-14	0.108000
106	2009-02-11	0.108000
107	2017-07-13	0.107000
108	2017-10-13	0.108000
109	2022-11-10	0.074000
110	2005-05-12	0.117000
111	2006-10-12	0.117000
112	2007-10-11	0.108000
113	2010-10-13	0.108000
114	2017-06-12	0.106000
115	2021-02-11	0.092000
116	2004-06-14	0.131000
117	2004-11-10	0.131000
118	2025-06-12	0.072000
119	2018-05-14	0.108000
120	2007-01-12	0.108000
121	2015-06-11	0.097000
122	2004-07-13	0.131000
123	2006-08-11	0.117000
124	2012-12-13	0.100000
125	2021-08-12	0.095000
126	2003-09-11	0.131000
127	2004-03-11	0.131000
128	2010-04-13	0.108000
129	2026-06-11	0.073000
130	2015-04-13	0.097000
131	2017-12-12	0.108000
132	2026-01-12	0.072000
133	2005-02-11	0.117000
134	2007-05-11	0.108000
135	2014-09-11	0.100000
136	2008-02-11	0.108000
137	2011-02-11	0.108000
138	2009-07-13	0.108000
139	2011-11-14	0.100000
140	2013-08-12	0.100000
141	2021-11-12	0.096000
142	2004-02-12	0.131000
143	2005-07-11	0.117000
144	2012-08-10	0.100000
145	2014-12-11	0.097000
146	2015-10-13	0.097000
147	2016-05-12	0.097000
148	2018-04-13	0.108000
149	2019-12-12	0.099000
150	2023-12-11	0.065000
151	2004-08-12	0.131000
152	2011-03-11	0.100000
153	2014-11-13	0.100000
154	2008-12-11	0.108000
155	2012-10-11	0.100000
156	2021-05-13	0.092000
157	2021-09-13	0.096000
158	2026-04-10	0.073000
159	2016-11-14	0.092000
160	2020-11-12	0.093000
161	2018-07-13	0.107000
162	2021-03-11	0.091000
163	2005-01-13	0.117000
164	2011-04-11	0.100000
165	2016-08-11	0.092000
166	2018-09-14	0.106000
167	2018-10-12	0.106000
168	2022-03-11	0.096000
169	2008-08-11	0.108000
170	2008-11-13	0.108000
171	2013-11-12	0.100000
172	2017-05-16	0.106000
173	2024-02-12	0.065000
174	2011-01-13	0.108000
175	2012-03-12	0.100000
176	2016-09-12	0.092000
177	2009-11-12	0.108000
178	2012-06-11	0.100000
179	2006-11-13	0.117000
180	2021-01-12	0.092000
181	2012-02-13	0.100000
182	2008-12-24	1.120000
183	2012-01-13	0.100000
184	2016-07-11	0.092000
185	2022-10-13	0.076000
186	2024-05-10	0.066000
187	2003-12-11	0.131000
188	2006-04-13	0.117000
189	2020-07-13	0.096000
190	2005-03-10	0.117000
191	2007-06-11	0.108000
192	2020-03-12	0.099000
193	2007-11-13	0.108000
194	2019-08-12	0.099000
195	2016-02-11	0.097000
196	2020-01-13	0.099000
197	2005-12-28	0.051000
198	2011-09-12	0.100000
199	2013-06-13	0.100000
200	2018-01-16	0.108000
201	2019-03-11	0.102000
202	2022-01-13	0.096000
203	2009-05-11	0.108000
204	2010-05-12	0.108000
205	2018-06-12	0.108000
206	2022-06-10	0.093000
207	2012-05-11	0.100000
208	2016-03-11	0.097000
209	2004-05-12	0.131000
210	2020-12-11	0.092000
211	2022-07-11	0.091000
212	2025-07-11	0.072000
213	2008-06-12	0.108000
214	2018-02-13	0.108000
215	2024-04-11	0.065000
216	2014-03-13	0.100000
217	2020-09-11	0.094000
218	2024-10-15	0.066000
219	2006-03-10	0.117000
220	2017-09-12	0.108000
221	2012-09-14	0.100000
222	2022-08-11	0.089000
223	2011-05-12	0.100000
224	2011-12-12	0.100000
225	2010-03-11	0.108000
226	2015-01-12	0.097000
227	2015-03-12	0.097000
228	2024-01-12	0.065000
229	2025-08-11	0.072000
230	2004-04-13	0.131000
231	2009-04-13	0.108000
232	2010-07-13	0.108000
233	2013-02-11	0.100000
234	2024-07-11	0.066000
235	2024-08-12	0.066000
236	2006-12-11	0.117000
237	2008-03-13	0.108000
238	2007-07-12	0.108000
239	2020-02-13	0.099000
240	2021-12-13	0.096000
241	2024-11-12	0.066000
242	2003-08-13	0.131000
243	2006-05-11	0.117000
244	2008-09-12	0.108000
245	2013-10-10	0.100000
246	2016-06-13	0.092000
247	2008-01-14	0.108000
248	2008-04-11	0.108000
249	2011-06-13	0.100000
250	2023-03-10	0.068000
251	2021-06-11	0.093000
252	2021-07-12	0.094000
253	2022-04-11	0.095000
254	2023-06-12	0.065000
255	2023-10-12	0.065000
256	2025-11-13	0.072000
257	2010-01-14	0.108000
258	2010-08-12	0.108000
259	2013-09-13	0.100000
260	2015-09-11	0.097000
261	2016-12-12	0.092000
262	2019-09-12	0.099000
263	2009-08-13	0.108000
264	2013-05-13	0.100000
265	2014-02-13	0.100000
266	2020-05-11	0.098000
267	2006-07-13	0.117000
268	2009-06-11	0.108000
269	2015-05-11	0.097000
270	2015-08-13	0.097000
271	2019-01-15	0.103000
272	2019-06-13	0.100000
273	2021-04-12	0.091000
274	2010-11-10	0.108000
275	2013-12-12	0.100000
276	2009-10-09	0.108000
277	2017-01-12	0.092000
278	2018-11-13	0.105000
279	2019-11-12	0.099000
280	2004-09-13	0.131000
281	2008-07-11	0.108000

5.5 KiB Raw Blame History

5.5 KiB

Raw Blame History