f/dltnx-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

3.8 KiB

Raw Blame History

1	Date	Dividends
2	2011-09-30	0.077000
3	2011-11-30	0.074000
4	2016-08-31	0.031000
5	2025-01-31	0.033000
6	2013-06-28	0.042000
7	2013-11-29	0.044000
8	2016-12-30	0.032000
9	2021-09-30	0.024000
10	2023-10-31	0.032000
11	2024-01-31	0.032000
12	2016-07-29	0.032000
13	2016-10-31	0.030000
14	2023-05-31	0.027000
15	2026-01-30	0.030000
16	2013-08-30	0.043000
17	2016-09-30	0.030000
18	2017-08-31	0.029000
19	2019-09-30	0.030000
20	2015-11-30	0.032000
21	2015-12-31	0.035000
22	2011-03-31	0.075000
23	2011-04-29	0.072000
24	2013-03-28	0.042000
25	2014-01-31	0.046000
26	2014-02-28	0.043000
27	2015-02-27	0.031000
28	2021-08-31	0.023000
29	2022-09-30	0.028000
30	2025-11-28	0.033000
31	2010-06-30	0.078000
32	2010-12-31	0.110000
33	2015-07-31	0.037000
34	2021-11-30	0.024000
35	2024-05-31	0.038000
36	2025-03-31	0.035000
37	2014-11-28	0.036000
38	2017-01-31	0.032000
39	2017-06-30	0.030000
40	2020-01-31	0.027000
41	2015-08-31	0.034000
42	2017-10-31	0.030000
43	2020-09-30	0.026000
44	2021-05-28	0.028000
45	2010-10-29	0.073000
46	2012-02-29	0.055000
47	2012-03-30	0.059000
48	2013-12-31	0.052000
49	2018-11-30	0.031000
50	2020-08-31	0.028000
51	2021-07-30	0.025000
52	2025-09-30	0.034000
53	2023-03-31	0.029000
54	2024-03-28	0.031000
55	2024-06-28	0.035000
56	2026-04-30	0.034000
57	2020-10-30	0.026000
58	2011-06-30	0.071000
59	2011-08-31	0.073000
60	2012-09-28	0.051000
61	2016-06-30	0.031000
62	2019-03-29	0.031000
63	2019-10-31	0.031000
64	2021-10-29	0.024000
65	2023-08-31	0.032000
66	2013-02-28	0.041000
67	2013-09-30	0.046000
68	2014-10-31	0.037000
69	2017-11-30	0.030000
70	2020-06-30	0.030000
71	2020-12-31	0.027000
72	2025-02-28	0.032000
73	2026-06-30	0.037000
74	2010-04-30	0.027000
75	2012-01-31	0.064000
76	2015-04-30	0.035000
77	2015-05-29	0.037000
78	2018-05-31	0.030000
79	2020-02-28	0.026000
80	2012-05-31	0.057000
81	2012-12-31	0.054000
82	2014-09-30	0.039000
83	2019-12-31	0.031000
84	2024-07-31	0.036000
85	2010-05-28	0.066000
86	2012-07-31	0.054000
87	2021-06-30	0.026000
88	2022-12-30	0.028000
89	2023-09-29	0.032000
90	2024-04-30	0.033000
91	2016-01-29	0.031000
92	2022-04-29	0.023000
93	2022-10-31	0.028000
94	2022-05-31	0.024000
95	2023-04-28	0.027000
96	2011-05-31	0.068000
97	2011-10-31	0.070000
98	2013-04-30	0.041000
99	2015-03-31	0.036000
100	2019-07-31	0.031000
101	2021-12-30	0.026000
102	2023-12-29	0.038000
103	2024-02-29	0.033000
104	2025-07-31	0.035000
105	2021-02-26	0.022000
106	2022-06-30	0.028000
107	2010-09-30	0.082000
108	2017-09-29	0.029000
109	2018-07-31	0.030000
110	2019-02-28	0.030000
111	2019-08-30	0.031000
112	2020-05-29	0.029000
113	2022-08-31	0.027000
114	2025-12-31	0.037000
115	2026-02-27	0.030000
116	2011-12-30	0.087000
117	2014-05-30	0.042000
118	2015-01-30	0.034000
119	2016-05-31	0.028000
120	2017-03-31	0.033000
121	2018-01-31	0.029000
122	2015-09-30	0.034000
123	2018-10-31	0.031000
124	2019-06-28	0.030000
125	2024-12-31	0.037000
126	2010-11-30	0.086000
127	2011-07-29	0.073000
128	2024-10-31	0.035000
129	2025-08-29	0.036000
130	2011-01-31	0.070000
131	2012-06-29	0.056000
132	2012-08-31	0.055000
133	2018-06-29	0.032000
134	2018-09-28	0.030000
135	2025-04-30	0.033000
136	2014-03-31	0.043000
137	2014-08-29	0.042000
138	2023-11-30	0.032000
139	2025-05-30	0.036000
140	2010-08-31	0.083000
141	2013-07-31	0.043000
142	2018-08-31	0.031000
143	2021-03-31	0.029000
144	2024-11-29	0.033000
145	2025-10-31	0.032000
146	2019-05-31	0.029000
147	2020-07-31	0.029000
148	2014-06-30	0.041000
149	2017-04-28	0.030000
150	2017-07-31	0.030000
151	2017-12-29	0.028000
152	2018-12-31	0.031000
153	2019-01-31	0.029000
154	2023-06-30	0.030000
155	2024-08-30	0.036000
156	2023-07-31	0.030000
157	2024-09-30	0.034000
158	2011-02-28	0.072000
159	2016-02-29	0.028000
160	2017-02-28	0.029000
161	2020-03-31	0.032000
162	2022-03-31	0.027000
163	2023-01-31	0.026000
164	2022-07-29	0.028000
165	2013-01-31	0.044000
166	2013-05-31	0.042000
167	2014-04-30	0.043000
168	2016-03-31	0.033000
169	2016-04-29	0.030000
170	2021-04-30	0.026000
171	2012-04-30	0.055000
172	2017-05-31	0.031000
173	2019-04-30	0.030000
174	2020-11-30	0.026000
175	2021-01-29	0.022000
176	2022-02-28	0.023000
177	2022-11-30	0.027000
178	2012-11-30	0.048000
179	2014-12-31	0.041000
180	2018-02-28	0.029000
181	2019-11-29	0.031000
182	2020-04-30	0.029000
183	2022-01-31	0.023000
184	2025-06-30	0.036000
185	2026-05-29	0.033000
186	2012-10-31	0.050000
187	2014-07-31	0.044000
188	2015-10-30	0.034000
189	2016-11-30	0.031000
190	2018-03-29	0.031000
191	2023-02-28	0.028000
192	2026-07-31	0.030000
193	2010-07-30	0.081000
194	2013-10-31	0.048000
195	2015-06-30	0.036000
196	2018-04-30	0.028000
197	2026-03-31	0.036000

3.8 KiB Raw Blame History

3.8 KiB

Raw Blame History