Here are NBC/SurveyMonkey poll results released today. They are showing Libertarian nominee Gary Johnson polling at 9%, Green candidate Jill Stein at 5%, That 5% is a magical number for third-party campaigns, since 5% nationwide in the presidential race qualifies a party for federal funds in the next cycle.
The Libertarians have been drooling loudly over the prospect of reaching 15%, as Rachel Maddow has reported. That level in five reputable polls (whichever those are) gets your candidate past the gate-keepers at the Commission on Presidential Debates.
There is only the one question about preferences in a four-way race. But given only Clinton and Trump as voting choices, 20% choose "somebody else."
The figure for Stein represents an increase from the 4% showing last week. All the percentages are rounded, or course, so it may be a matter of jumping from 4.4% to 4.6%, with the usual margins of error thrown in.