f/lsdax-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

4.2 KiB

Raw Blame History

1	Date	Dividends
2	2011-03-31	0.027000
3	2011-08-31	0.027000
4	2018-02-28	0.017000
5	2020-08-31	0.016000
6	2020-09-30	0.016000
7	2011-01-31	0.028000
8	2012-07-31	0.018000
9	2016-10-31	0.014000
10	2021-02-26	0.015000
11	2025-05-30	0.035000
12	2011-12-21	0.011000
13	2019-04-30	0.025000
14	2012-01-31	0.024000
15	2023-10-31	0.035000
16	2017-12-29	0.015000
17	2020-01-31	0.021000
18	2023-09-29	0.034000
19	2023-06-30	0.031000
20	2012-05-31	0.020000
21	2012-10-31	0.019000
22	2013-10-31	0.016000
23	2015-04-30	0.013000
24	2024-03-28	0.035000
25	2024-06-28	0.036000
26	2024-09-30	0.036000
27	2025-03-31	0.036000
28	2010-11-30	0.027000
29	2016-01-29	0.013000
30	2019-09-30	0.024000
31	2022-07-29	0.015000
32	2024-07-31	0.034000
33	2010-07-30	0.029000
34	2016-11-30	0.014000
35	2017-01-31	0.014000
36	2023-11-30	0.036000
37	2009-02-27	0.051000
38	2014-07-31	0.014000
39	2015-03-31	0.012000
40	2016-09-30	0.015000
41	2011-11-30	0.027000
42	2017-04-28	0.015000
43	2020-12-31	0.014000
44	2021-05-28	0.012000
45	2025-06-30	0.036000
46	2010-12-31	0.028000
47	2014-03-31	0.016000
48	2020-02-28	0.022000
49	2024-02-29	0.036000
50	2021-04-30	0.012000
51	2023-02-28	0.025000
52	2010-08-31	0.028000
53	2014-05-30	0.016000
54	2015-05-29	0.013000
55	2019-11-29	0.022000
56	2013-09-30	0.016000
57	2014-06-30	0.016000
58	2018-01-31	0.016000
59	2018-04-30	0.020000
60	2018-11-30	0.023000
61	2009-01-30	0.057000
62	2010-05-28	0.025000
63	2013-01-31	0.018000
64	2017-02-28	0.016000
65	2019-10-31	0.023000
66	2025-11-28	0.036000
67	2014-10-31	0.013000
68	2015-07-31	0.013000
69	2019-07-31	0.024000
70	2009-10-30	0.025000
71	2010-09-30	0.027000
72	2013-02-28	0.021000
73	2009-07-31	0.040000
74	2016-12-30	0.013000
75	2017-03-31	0.013000
76	2025-02-28	0.035000
77	2013-04-30	0.018000
78	2021-11-30	0.010000
79	2022-12-30	0.026000
80	2011-12-30	0.025000
81	2012-06-29	0.019000
82	2013-12-31	0.016000
83	2017-06-30	0.015000
84	2013-11-29	0.016000
85	2017-08-31	0.014000
86	2022-01-31	0.010000
87	2012-11-30	0.019000
88	2019-02-28	0.027000
89	2020-06-30	0.017000
90	2024-01-31	0.034000
91	2009-03-31	0.048000
92	2019-01-31	0.022000
93	2011-06-30	0.027000
94	2017-11-30	0.015000
95	2011-04-29	0.028000
96	2022-11-30	0.021000
97	2024-04-30	0.037000
98	2009-05-29	0.042000
99	2011-10-31	0.026000
100	2015-02-27	0.015000
101	2015-06-30	0.014000
102	2018-12-31	0.022000
103	2023-05-31	0.028000
104	2009-04-30	0.051000
105	2012-12-20	0.007000
106	2017-10-31	0.014000
107	2023-08-31	0.033000
108	2014-08-29	0.014000
109	2024-12-31	0.036000
110	2025-01-31	0.034000
111	2011-09-30	0.028000
112	2013-05-31	0.016000
113	2022-02-28	0.012000
114	2022-10-31	0.021000
115	2021-06-30	0.011000
116	2023-01-31	0.022000
117	2021-03-31	0.012000
118	2018-09-28	0.022000
119	2019-08-30	0.024000
120	2009-09-30	0.031000
121	2010-03-31	0.021000
122	2014-04-30	0.017000
123	2025-09-30	0.036000
124	2020-10-30	0.015000
125	2022-08-31	0.018000
126	2023-12-29	0.036000
127	2026-05-29	0.034000
128	2026-07-31	0.035000
129	2011-05-31	0.027000
130	2013-03-28	0.017000
131	2021-07-30	0.011000
132	2018-10-31	0.022000
133	2021-08-31	0.010000
134	2022-05-31	0.012000
135	2023-03-31	0.024000
136	2024-05-31	0.036000
137	2026-06-30	0.036000
138	2021-12-31	0.010000
139	2012-04-30	0.021000
140	2021-10-29	0.010000
141	2024-11-29	0.037000
142	2010-02-26	0.022000
143	2014-01-31	0.016000
144	2025-04-30	0.038000
145	2025-07-31	0.035000
146	2012-09-28	0.020000
147	2021-09-30	0.011000
148	2024-10-31	0.036000
149	2011-07-29	0.027000
150	2017-07-31	0.014000
151	2016-02-29	0.015000
152	2016-05-31	0.014000
153	2026-02-27	0.036000
154	2025-10-31	0.036000
155	2011-02-28	0.028000
156	2012-03-30	0.021000
157	2020-04-30	0.021000
158	2024-08-30	0.036000
159	2010-06-30	0.029000
160	2015-01-30	0.012000
161	2016-06-30	0.015000
162	2017-09-29	0.015000
163	2023-07-31	0.031000
164	2016-07-29	0.014000
165	2015-10-30	0.014000
166	2017-05-31	0.014000
167	2019-03-29	0.023000
168	2020-11-30	0.015000
169	2022-06-30	0.015000
170	2012-12-31	0.019000
171	2013-08-30	0.016000
172	2023-04-28	0.026000
173	2022-03-31	0.011000
174	2010-10-29	0.026000
175	2015-09-30	0.015000
176	2018-06-29	0.020000
177	2009-12-31	0.024000
178	2009-11-30	0.025000
179	2020-03-31	0.025000
180	2018-08-31	0.021000
181	2019-06-28	0.024000
182	2026-01-30	0.032000
183	2013-07-31	0.015000
184	2021-01-29	0.013000
185	2012-08-31	0.019000
186	2020-07-31	0.018000
187	2022-04-29	0.013000
188	2026-03-31	0.035000
189	2012-02-29	0.024000
190	2018-05-31	0.019000
191	2018-07-31	0.019000
192	2019-12-31	0.022000
193	2018-03-29	0.017000
194	2020-05-29	0.019000
195	2025-12-31	0.036000
196	2010-01-29	0.023000
197	2014-09-30	0.014000
198	2015-08-31	0.013000
199	2019-05-31	0.024000
200	2009-08-31	0.036000
201	2014-02-28	0.018000
202	2014-11-28	0.014000
203	2015-12-31	0.013000
204	2016-04-29	0.015000
205	2025-08-29	0.036000
206	2009-06-30	0.039000
207	2013-06-28	0.016000
208	2016-03-31	0.014000
209	2014-12-31	0.012000
210	2015-11-30	0.015000
211	2016-08-31	0.013000
212	2022-09-30	0.019000
213	2013-12-20	0.012000
214	2026-04-30	0.036000

4.2 KiB Raw Blame History

4.2 KiB

Raw Blame History