f/gibax-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

3.5 KiB

Raw Blame History

1	Date	Dividends
2	2023-07-31	0.073000
3	2012-12-31	0.165000
4	2022-04-29	0.069000
5	2023-04-28	0.069000
6	2014-11-28	0.075000
7	2018-02-28	0.051000
8	2020-02-28	0.039000
9	2017-09-29	0.062000
10	2026-06-30	0.100000
11	2026-07-31	0.110000
12	2013-05-31	0.101000
13	2016-12-30	0.092000
14	2024-12-31	0.093000
15	2019-02-28	0.052000
16	2020-03-31	0.050000
17	2024-01-31	0.079000
18	2012-08-31	0.114000
19	2012-09-28	0.104000
20	2017-03-31	0.076000
21	2019-07-31	0.058000
22	2020-08-31	0.056000
23	2024-08-30	0.089000
24	2025-11-28	0.090000
25	2016-02-29	0.087000
26	2016-09-30	0.065000
27	2018-08-31	0.064000
28	2020-12-17	0.730000
29	2022-01-31	0.058000
30	2024-05-31	0.096000
31	2025-07-31	0.098000
32	2016-06-30	0.064000
33	2017-07-31	0.068000
34	2019-01-31	0.051000
35	2020-11-30	0.059000
36	2012-06-29	0.106000
37	2016-11-30	0.081000
38	2020-01-31	0.046000
39	2021-02-26	0.065000
40	2023-05-31	0.078000
41	2024-06-28	0.087000
42	2025-04-30	0.097000
43	2014-05-30	0.089000
44	2015-02-27	0.076000
45	2016-10-31	0.078000
46	2013-02-28	0.106000
47	2019-09-30	0.054000
48	2021-03-31	0.068000
49	2023-02-28	0.079000
50	2026-05-29	0.105000
51	2015-08-31	0.074000
52	2017-10-31	0.063000
53	2019-11-29	0.042000
54	2017-12-29	0.055000
55	2021-01-29	0.054000
56	2022-09-30	0.081000
57	2024-10-31	0.090000
58	2013-10-31	0.111000
59	2014-12-31	0.093000
60	2015-05-29	0.089000
61	2018-01-31	0.055000
62	2021-06-30	0.063000
63	2014-02-28	0.082000
64	2014-07-31	0.096000
65	2016-05-31	0.079000
66	2021-08-31	0.060000
67	2022-10-31	0.084000
68	2022-12-30	0.094000
69	2023-09-29	0.090000
70	2013-11-29	0.112000
71	2015-01-30	0.112000
72	2019-12-31	0.042000
73	2018-09-28	0.058000
74	2019-06-28	0.056000
75	2012-12-07	0.054000
76	2015-09-30	0.078000
77	2017-02-28	0.079000
78	2025-08-29	0.104000
79	2026-04-30	0.097000
80	2012-10-31	0.127000
81	2013-12-31	0.102000
82	2014-08-29	0.112000
83	2018-06-29	0.064000
84	2020-06-30	0.061000
85	2020-10-30	0.065000
86	2021-11-30	0.054000
87	2023-10-31	0.089000
88	2013-06-28	0.120000
89	2017-01-31	0.076000
90	2017-08-31	0.066000
91	2024-04-30	0.079000
92	2021-07-30	0.065000
93	2024-02-29	0.079000
94	2024-03-28	0.085000
95	2024-11-29	0.090000
96	2016-08-31	0.070000
97	2018-11-30	0.053000
98	2020-09-30	0.060000
99	2012-07-31	0.135000
100	2021-05-28	0.060000
101	2022-03-31	0.064000
102	2014-04-30	0.097000
103	2015-07-31	0.115000
104	2020-05-29	0.062000
105	2023-06-30	0.087000
106	2024-07-31	0.086000
107	2013-07-31	0.106000
108	2013-08-30	0.096000
109	2013-09-30	0.090000
110	2025-12-31	0.099000
111	2018-05-31	0.057000
112	2019-08-30	0.057000
113	2019-10-31	0.051000
114	2021-04-30	0.071000
115	2025-05-30	0.102000
116	2015-03-31	0.078000
117	2017-04-28	0.068000
118	2017-06-30	0.068000
119	2016-03-31	0.074000
120	2022-05-31	0.068000
121	2020-07-31	0.062000
122	2021-09-30	0.055000
123	2023-11-30	0.092000
124	2023-12-29	0.096000
125	2012-04-30	0.083000
126	2012-05-31	0.076000
127	2016-01-29	0.113000
128	2018-04-30	0.058000
129	2018-07-31	0.063000
130	2023-01-31	0.071000
131	2015-11-30	0.085000
132	2016-04-29	0.082000
133	2017-05-31	0.081000
134	2018-03-29	0.060000
135	2020-12-31	0.074000
136	2026-02-27	0.083000
137	2013-01-31	0.093000
138	2014-01-31	0.156000
139	2014-12-04	0.036000
140	2024-09-30	0.084000
141	2025-10-31	0.102000
142	2014-09-30	0.075000
143	2015-10-30	0.122000
144	2020-04-30	0.058000
145	2021-12-16	0.270000
146	2022-06-30	0.069000
147	2023-08-31	0.080000
148	2025-02-28	0.081000
149	2025-09-30	0.093000
150	2012-03-30	0.080000
151	2014-10-31	0.099000
152	2015-12-03	0.011000
153	2026-01-30	0.083000
154	2021-10-29	0.060000
155	2021-12-31	0.063000
156	2026-03-31	0.093000
157	2013-04-30	0.095000
158	2015-12-31	0.097000
159	2016-12-01	0.159000
160	2022-07-29	0.080000
161	2025-01-31	0.089000
162	2025-03-31	0.094000
163	2012-11-30	0.094000
164	2016-07-29	0.095000
165	2019-05-31	0.061000
166	2018-12-31	0.038000
167	2022-02-28	0.057000
168	2022-11-30	0.082000
169	2023-03-31	0.087000
170	2013-03-28	0.095000
171	2014-06-30	0.083000
172	2018-12-20	0.119000
173	2019-03-29	0.051000
174	2022-08-31	0.080000
175	2025-06-30	0.095000
176	2015-04-30	0.109000
177	2015-06-30	0.091000
178	2018-10-31	0.059000
179	2014-03-31	0.136000
180	2017-11-30	0.057000
181	2019-04-30	0.056000

3.5 KiB Raw Blame History

3.5 KiB

Raw Blame History