The Labour leader’s net approval rating now stands at -40, down from -35 in November of last year.
Even more worrying for Corbyn is that amongst young/old, North/South, Leave/Remain, male/female, middle/working class and even those who voted Labour in 2015, Corbyn has a net negative approval rating (% who replied favourably, minus % who replied unfavourably).
Amongst the working class, traditionally Labour’s heartland, he has a score of -40 and amongst the 18-24 age group, -1.
The news comes in yet another difficult week for Corbyn as he makes his fourth cabinet reshuffle in an 18-month tenure.
Depending on how he manages the situation, his approval rating could slip even further.
Anthony Wells, Research Director at YouGov told The Huffington Post UK: “In short, looking at any measure of polling Jeremy Corbyn is doing badly as Labour leader, but it’s by no means unprecedented.
“Other leaders have done just as badly in the past, but they did all tend to be leaders who went on to lose.
“The most negative ratings of all tend to be for leaders in government - Gordon Brown and Nick Clegg were both perceived far more negatively than Corbyn.”
On Wednesday key Corbyn ally Clive Lewis quit as shadow business secretary so he could oppose the Brexit bill in its third reading, bringing the total number of shadow cabinet resignations to four.
Corbyn said it was “not a disaster” that ally Lewis, who is tipped as a future leader, quit.
“The majority of Labour MPs voted to trigger Article 50. Fifty-odd voted against it, mainly on the basis of their strong message from their own constituents. My argument is it was a national vote, it was a national referendum, and Parliament has to respect that,” he said.
In the past two weeks shadow minister for early years Tulip Siddiq, shadow environment secretary Rachael Maskell and shadow equalities minister Dawn Butler all resigned from the front bench.
Corbyn’s first reshuffle, in January 2016, took 34 hours to complete.