Im trying to obtain history for bond futures eg TY, FV, US but even though the quantopian documentation says they are available, I get an error message below. Can anyone help me
fut = symbols('TYM20')
NoSuchSymbols Traceback (most recent call last)
in ()
----> 1 fut = symbols('TYM20')
/build/src/qexec_repo/qexec/research/api.py in symbols(symbols, symbol_reference_date, handle_missing)
453 symbol_reference_date=symbol_reference_date,
454 handle_missing=handle_missing,
--> 455 readers=readers,
456 )
457
/build/src/qexec_repo/qexec/research/_api.py in inner_symbols(symbols, symbol_reference_date, handle_missing, readers)
224
225 if len(securities) == 0:
--> 226 raise NoSuchSymbols(symbols)
227
228 if symbols_is_scalar:
NoSuchSymbols: Failed to find securities matching ['TYM20']