It's not options, but data, probably generated by
The manual page describes that as
Print all current settings in a form that can be
used as an argument to another stty command to
restore the current settings.
which comparing with the POSIX description provides no more insight:
Write to standard output all the current settings in an unspecified form that can be used as arguments to another invocation of the stty utility on the same system. The form used shall not contain any characters that would require quoting to avoid word expansion by the shell; see wordexp.
Various scripts use the feature (for example xterm's vttests scripts). Since it is an unspecified format, it is system-dependent (you can only rely on it being "something" written to the standard output).
If you used those settings to restore on a compatible system (i.e., one using the same implementation of
stty), and did
stty -a, it would show the settings in a more conventional format.