f/lauyx-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

5.1 KiB

Raw Blame History

1	Date	Dividends
2	2016-05-31	0.010000
3	2017-11-30	0.009000
4	2024-09-30	0.011000
5	2013-12-31	0.012000
6	2023-06-30	0.010000
7	2017-02-28	0.009000
8	2020-08-31	0.009000
9	2006-02-02	0.009000
10	2016-12-30	0.009000
11	2005-03-03	0.009000
12	2020-06-30	0.010000
13	2023-12-29	0.011000
14	2009-10-05	0.013000
15	2010-08-31	0.014000
16	2016-10-31	0.008000
17	2005-07-05	0.009000
18	2018-06-29	0.010000
19	2020-11-30	0.008000
20	2021-04-30	0.008000
21	2023-05-31	0.010000
22	2007-04-04	0.011000
23	2009-01-05	0.013000
24	2011-10-31	0.013000
25	2019-01-31	0.010000
26	2005-12-05	0.009000
27	2013-03-28	0.012000
28	2022-01-31	0.008000
29	2024-06-28	0.012000
30	2021-12-31	0.008000
31	2006-05-04	0.010000
32	2012-12-18	0.051000
33	2013-06-28	0.012000
34	2019-07-31	0.010000
35	2007-10-04	0.010000
36	2016-01-29	0.011000
37	2023-09-29	0.011000
38	2025-12-31	0.011000
39	2011-06-30	0.013000
40	2012-09-28	0.013000
41	2023-11-30	0.011000
42	2006-11-02	0.010000
43	2009-08-04	0.013000
44	2006-06-05	0.010000
45	2009-11-04	0.013000
46	2018-05-31	0.010000
47	2020-02-28	0.009000
48	2021-01-29	0.008000
49	2005-01-03	0.009000
50	2009-09-03	0.013000
51	2010-12-31	0.013000
52	2014-06-30	0.012000
53	2016-04-29	0.010000
54	2025-08-29	0.012000
55	2005-09-06	0.009000
56	2012-12-31	0.013000
57	2013-05-31	0.012000
58	2015-08-31	0.011000
59	2025-11-28	0.011000
60	2026-07-31	0.011000
61	2004-11-03	0.004000
62	2007-07-05	0.010000
63	2011-08-31	0.013000
64	2023-10-31	0.011000
65	2010-07-30	0.014000
66	2016-02-29	0.011000
67	2020-04-30	0.010000
68	2022-09-30	0.009000
69	2004-12-02	0.009000
70	2008-02-04	0.010000
71	2009-02-02	0.013000
72	2009-06-04	0.013000
73	2018-09-28	0.010000
74	2021-05-28	0.008000
75	2026-01-30	0.011000
76	2007-12-04	0.010000
77	2010-11-30	0.013000
78	2014-10-31	0.012000
79	2014-12-19	0.015000
80	2017-08-31	0.009000
81	2019-02-28	0.010000
82	2019-04-30	0.010000
83	2021-02-26	0.008000
84	2007-05-03	0.011000
85	2008-11-03	0.013000
86	2011-04-29	0.013000
87	2017-01-31	0.009000
88	2011-05-31	0.013000
89	2020-07-31	0.009000
90	2014-03-31	0.012000
91	2018-02-28	0.010000
92	2018-12-31	0.010000
93	2025-02-28	0.012000
94	2006-03-02	0.010000
95	2008-07-02	0.013000
96	2009-12-31	0.013000
97	2013-04-30	0.012000
98	2025-10-31	0.012000
99	2026-04-30	0.011000
100	2019-08-30	0.010000
101	2019-12-31	0.009000
102	2024-05-31	0.012000
103	2025-04-30	0.012000
104	2006-01-04	0.009000
105	2013-07-31	0.013000
106	2025-09-30	0.011000
107	2014-01-31	0.012000
108	2016-06-30	0.010000
109	2022-07-29	0.009000
110	2023-02-28	0.010000
111	2006-08-03	0.010000
112	2008-03-05	0.011000
113	2015-05-29	0.011000
114	2019-05-31	0.010000
115	2019-10-31	0.009000
116	2023-04-28	0.010000
117	2024-10-31	0.011000
118	2009-05-04	0.013000
119	2011-12-16	0.022000
120	2013-01-31	0.012000
121	2015-07-31	0.011000
122	2013-08-30	0.013000
123	2021-03-31	0.008000
124	2019-09-30	0.010000
125	2019-11-29	0.009000
126	2005-02-02	0.009000
127	2012-03-30	0.013000
128	2012-07-31	0.013000
129	2018-04-30	0.010000
130	2014-07-31	0.012000
131	2017-12-29	0.009000
132	2018-10-31	0.010000
133	2022-03-31	0.008000
134	2016-03-31	0.010000
135	2017-09-29	0.009000
136	2021-09-30	0.008000
137	2025-01-31	0.012000
138	2006-04-03	0.010000
139	2007-01-04	0.011000
140	2022-05-31	0.008000
141	2021-10-29	0.008000
142	2021-11-30	0.008000
143	2024-11-29	0.011000
144	2009-04-02	0.013000
145	2011-12-30	0.013000
146	2015-02-27	0.011000
147	2018-07-31	0.010000
148	2006-09-05	0.010000
149	2023-01-31	0.010000
150	2026-03-31	0.011000
151	2005-04-04	0.009000
152	2012-05-31	0.013000
153	2014-04-30	0.012000
154	2015-01-30	0.011000
155	2014-05-30	0.012000
156	2019-06-28	0.010000
157	2023-07-31	0.010000
158	2006-07-05	0.010000
159	2019-03-29	0.010000
160	2021-07-30	0.008000
161	2026-02-27	0.012000
162	2010-09-30	0.014000
163	2011-09-30	0.013000
164	2013-12-18	0.045000
165	2017-06-30	0.009000
166	2025-03-31	0.012000
167	2005-10-04	0.009000
168	2007-08-06	0.010000
169	2007-11-05	0.010000
170	2012-04-30	0.013000
171	2011-02-28	0.013000
172	2024-07-31	0.012000
173	2012-06-29	0.013000
174	2015-09-30	0.011000
175	2021-06-30	0.008000
176	2007-09-04	0.010000
177	2016-11-30	0.009000
178	2017-07-31	0.009000
179	2018-03-29	0.010000
180	2007-06-04	0.010000
181	2024-02-29	0.011000
182	2005-05-04	0.009000
183	2005-08-04	0.009000
184	2005-11-03	0.009000
185	2007-02-05	0.011000
186	2015-10-30	0.011000
187	2016-09-30	0.009000
188	2020-01-31	0.009000
189	2026-06-30	0.011000
190	2014-02-28	0.012000
191	2014-12-31	0.012000
192	2015-11-30	0.011000
193	2022-11-30	0.009000
194	2012-08-31	0.013000
195	2021-12-17	0.049000
196	2022-04-29	0.008000
197	2026-05-29	0.011000
198	2018-11-30	0.010000
199	2020-03-31	0.010000
200	2020-10-30	0.008000
201	2024-01-31	0.011000
202	2024-03-28	0.012000
203	2006-10-05	0.010000
204	2012-10-31	0.013000
205	2013-09-30	0.013000
206	2018-01-31	0.009000
207	2015-04-30	0.011000
208	2015-12-31	0.011000
209	2016-08-31	0.010000
210	2014-08-29	0.012000
211	2017-10-31	0.009000
212	2008-10-02	0.013000
213	2013-02-28	0.013000
214	2025-05-30	0.012000
215	2022-02-28	0.008000
216	2007-03-05	0.011000
217	2012-02-29	0.013000
218	2015-06-30	0.011000
219	2020-12-31	0.008000
220	2008-04-03	0.011000
221	2008-09-04	0.013000
222	2020-05-29	0.010000
223	2022-10-31	0.009000
224	2014-09-30	0.012000
225	2015-03-31	0.011000
226	2017-05-31	0.009000
227	2006-12-04	0.011000
228	2009-03-04	0.013000
229	2010-10-29	0.013000
230	2013-11-29	0.012000
231	2016-07-29	0.010000
232	2022-08-31	0.010000
233	2023-08-31	0.011000
234	2012-11-30	0.012000
235	2013-10-31	0.012000
236	2018-08-31	0.010000
237	2023-03-31	0.010000
238	2011-01-31	0.013000
239	2014-11-28	0.012000
240	2022-06-30	0.009000
241	2025-06-30	0.011000
242	2012-01-31	0.013000
243	2020-09-30	0.009000
244	2008-06-04	0.013000
245	2008-08-04	0.013000
246	2008-12-04	0.013000
247	2011-03-31	0.013000
248	2017-03-31	0.009000
249	2024-12-31	0.012000
250	2017-04-28	0.009000
251	2021-08-31	0.008000
252	2024-04-30	0.012000
253	2024-08-30	0.012000
254	2008-01-03	0.010000
255	2008-05-05	0.011000
256	2011-07-29	0.013000
257	2011-11-30	0.013000
258	2025-07-31	0.012000
259	2005-06-02	0.009000
260	2009-07-06	0.013000
261	2009-12-03	0.013000
262	2022-12-30	0.010000

5.1 KiB Raw Blame History

5.1 KiB

Raw Blame History