A support case with the identification [CASE:4387967] was created.
FinancialData seems to be losing information.
For example in the documentation it says:
In[1]:= FinancialData["Currencies"]
Out[1]= {"AED", "AFN", "ALL", "AMD", "ANG", "AOA", "ARS", "AUD", \
"AWG", "AZN", "BAM", "BBD", "BDT", "BGN", "BHD", "BIF", "BMD", "BND", \
"BOB", "BRL", "BSD", "BTC", "BTN", "BWP", "BYR", "BZD", "CAD", "CDF", \
"CHF", "CLF", "CLP", "CNH", "CNY", "COP", "CRC", "CUC", "CVE", "CZK", \
"DJF", "DKK", "DOP", "DZD", "EEK", "EGP", "ERN", "ETB", "ETH", "EUR", \
"FJD", "FKP", "GBP", "GEL", "GHS", "GIP", "GMD", "GNF", "GTQ", "GYD", \
"HKD", "HNL", "HRK", "HTG", "HUF", "IDR", "ILS", "INR", "IQD", "IRR", \
"ISK", "JMD", "JOD", "JPY", "KES", "KGS", "KHR", "KMF", "KPW", "KRW", \
"KWD", "KYD", "KZT", "LAK", "LBP", "LKR", "LRD", "LSL", "LTL", "LVL", \
"LYD", "MAD", "MDL", "MGA", "MKD", "MMK", "MNT", "MOP", "MRO", "MUR", \
"MVR", "MWK", "MXN", "MYR", "MZN", "NAD", "NGN", "NIO", "NOK", "NPR", \
"NZD", "OMR", "PAB", "PEN", "PGK", "PHP", "PKR", "PLN", "PYG", "QAR", \
"RON", "RSD", "RUB", "RWF", "SAR", "SBD", "SCR", "SDG", "SEK", "SGD", \
"SHP", "SKK", "SLL", "SOS", "SRD", "STD", "SYP", "SZL", "THB", "TJS", \
"TMT", "TND", "TOP", "TRY", "TTD", "TWD", "TZS", "UAH", "UGX", "USD", \
"UYU", "UZS", "VEF", "VND", "VUV", "WST", "XAF", "XAG", "XAU", "XCD", \
"XDR", "XOF", "XPD", "XPF", "XPT", "YER", "ZAR", "ZMK", "ZMW"}
But if I evaluate it I get:
In[1]:= FinancialData["Currencies"]
Out[1]= {"AED", "ALL", "ARS", "AUD", "AWG", "AZN", "BCH", "BGN", \
"BHD", "BRL", "BTC", "CAD", "CHF", "CNY", "CZK", "DKK", "EEK", "EGP", \
"ETH", "EUR", "GBP", "HKD", "HRK", "HUF", "IDR", "ILS", "INR", "IQD", \
"IRR", "ISK", "JOD", "JPY", "KRW", "KZT", "LTC", "MKD", "MXN", "MYR", \
"NOK", "NZD", "PHP", "PLN", "RON", "RSD", "RUB", "SDR", "SEK", "SGD", \
"SYP", "THB", "TMT", "TRY", "UAH", "USD", "UZS", "XRP", "ZAR"}
In the documentation it says:
In[1]:= Length[FinancialData["Exchanges"]]
Out[1]= 101
But if I evaluate it I get:
In[1]:= Length[FinancialData["Exchanges"]]
Out[1]= 12
What happened to the other exchanges?
Data seems to be shrinking across all classes:
In[1]:= AssociationMap[Length@*FinancialData, FinancialData["Classes"]]
Out[1]= <|"Currencies" -> 57, "Exchanges" -> 12,
"ExchangeTradedFunds" -> 8927, "IndexComponents" -> 4,
"Indices" -> 0, "MutualFunds" -> 0, "Sectors" -> 144,
"Stocks" -> 39028|>
A particular example from documentation. There is a sector "HomeImprovementStores":
In[1]:= FinancialData["HomeImprovementStores", "Members"]
Out[1]= {"BE:C8J", "BE:HDI", "BE:KFI1", "BE:KFI2", "BE:LKU", \
"BE:LWE", "BK:HMPRO", "BK:HMPRO-F", "BK:HMPRO-R", "CL:HD", "DE:HDI", \
"DU:HDI", "DU:KFI1", "DU:LWE", "F:1FD", "F:25F", "F:2TS", "F:73S", \
"F:A8X", "F:HDI", "FI:FSKRS", "F:KFI1", "F:LKU", "F:LWE", "HA:HDI", \
"HA:KFI1", "HM:HDI", "L:KGF", "L:SFE", "L:TPT", "MU:HDI", "MU:KFI1", \
"MU:LWE", "MX:HD", "MX:LOW", "NASDAQ:SSLJ", "NASDAQ:TTS", \
"NEXX:TPT-GB", "NYSE:FND", "NYSE:HD", "NYSE:HVT", "NYSE:HVT-A", \
"NYSE:LL", "NYSE:LOW", "PK:AERO", "PK:CLWY", "PK:FKRAF", "PK:GRSU", \
"PK:HPCRF", "PK:ILUS", "PK:KGFHF", "PK:KGFHY", "PK:NCLTF", \
"SA:HOME34", "SG:2TS", "SG:5HP", "SG:A8X", "SG:HDI", "SG:KFI1", \
"SG:LKU", "SG:LWE", "SW:HD", "TO:TBL", "TSE:9843", "VI:HD", "ZA:CSB"}
But this seems to be completely wiped out:
In[1]:= FinancialData["HomeImprovementStores", "Members"]
Out[1]= Missing["NotAvailable"]
In[2]:= FinancialData["BE:C8J", {"Name", "Sector"}]
Out[2]= {"Cashbuild Ltd", Missing["NotAvailable"]}
Can't find this sector any more in the list:
FinancialData["Sectors"]
What is going on here?
Curated-data(aka integrated knowledge) is a top selling point for WL and their accuracy and scope are quite relevant for me. This is also a documentation error - quite in line with this site's scope imo. $\endgroup$