Westminster Voting Intention: Poll of Polls

CON 39(39)
LAB 29(28.6)
LD 16(15.8)
GRN 3(3.4)
BRX 8(8)
End Date Company Client CON LAB LD GRN BRX Lead
12 Nov 2019 YouGov Online Times/Sky42 28 15 4 4 +14
11 Nov 2019 ICM Online 39 31 15 3 8 +8
09 Nov 2019 Deltapoll Online Mail on Sunday41 29 16 2 6 +12
08 Nov 2019 Survation Online 35 29 17 1 10 +6
08 Nov 2019 BMG Online Independent37 29 16 7 9 +8
08 Nov 2019 YouGov Online Sunday Times39 26 17 4 10 +13
08 Nov 2019 Opinium Online Observer41 29 15 2 6 +12
08 Nov 2019 Panelbase Online 40 30 15 3 8 +10
06 Nov 2019 YouGov Online Times/Sky36 25 17 5 11 +11
05 Nov 2019 ComRes Online Remain United36 29 17 3 11 +7
04 Nov 2019 YouGov Online Times38 25 16 5 11 +13
04 Nov 2019 ICM Online Reuters38 31 15 3 9 +7
02 Nov 2019 Deltapoll Online Mail on Sunday40 28 14 2 11 +12
01 Nov 2019 YouGov Online Sunday Times39 27 16 4 7 +12
01 Nov 2019 Opinium Online Observer42 26 16 2 9 +16

This is a rolling poll of polls, which is weighted so that a poll loses 1/12 (0.083) of weighting every day after the end date of the survey (which isn't always the date it is published). Therefore, a poll where the fieldwork finished today has a weighting of 1, yesterday 11/12, 2 days ago 10/12, and so on. When a poll is 12 days old it has a weighting of 0, which means it will drop out of the poll of polls altogether.

In many ways, a rolling average of polls is not a foolproof method of determining the current positions of the parties - averaging good polls with bad won't produce better results - but it does give a better idea of the current trend of the polls than just taking the latest poll, which in itself has differences in methodology which could affect the headline figures. As such, the polls which the rolling average has been drawn from are included above, which is likely to highlight any outliers (which satistically happen every 20 polls on average), and you can draw your own conclusion about them - having said that, the outling polls make a very small difference to the overall poll of polls.