There is a new Opinium poll in the Observer with topline figures of CON 37%(+3), LAB 31%(+2), LDEM 6%(-1), UKIP 15%(-2), GRN 4%(nc) – changes are from a month ago. The Conservatives have a healthy lead, but not the sort of big honeymoon lead that ICM and YouGov both showed them enjoying.

The Observer’s write up concentrates on the Labour race. Among current Labour voters Jeremy Corbyn is the preferred choice of 54%, Owen Smith of 22%. Labour voters do not, of course, necessarily reflect the preferences of the Labour members and supporters who get a vote, though the previous YouGov polling of Labour party members also suggested a large lead for Corbyn. On who would make the best Prime Minister (among the general public, rather than just Labour supporters!) Theresa May leads Corbyn by 52% to 16%.


It’s the eve of the referendum, so we have a flurry of late polls. Later on this evening we will have figures from ComRes and YouGov (Ipsos MORI’s final poll is normally in the Standard, so will probably be out tomorrow morning), already we have final figures from TNS and Opinium.

Opinium have topline figures of REMAIN 44%, LEAVE 45%, Undecided 9%. Leave are ahead by the tiniest of margins, but clearly the two sides are within the margin of error of each other. Full tabs are here.

TNS‘s final referendum poll also has Leave ahead, this time by two points. Topline figures here are REMAIN 41%, LEAVE 43%, Undecided or won’t vote 16%. Note that unlike TNS’s last few polls their headline figures here are NOT weighted for turnout – with their turnout model they would have been Remain 42%, Leave 49%. Full tabs are here.

I will update later once ComRes and YouGov publish. In the meantime both of the non-British Polling Council companies who produced more unorthodox polls last week have produced updated figures – SurveyMonkey have final figures of REMAIN 50%, LEAVE 47%; Qriously (the company sampling via smartphone ads) has final figures of REMAIN 37%, LEAVE 51, Don’t know 12%. Again, make of that what you will.

UPDATE: The ComRes and YouGov eve-of-referendum polls are now also out. Whereas TNS and Opinium both had Leave leads, ComRes and YouGov both show Remain ahead (albeit, by different margins):

ComRes for the Daily Mail have topline figures of REMAIN 54%, LEAVE 46%, a widening of the Remain lead after their last poll showing Remain and Leave within a point of each other. ComRes have reallocated don’t knows based on respondents’ views of the impact of Brexit on the economy, which looks like it boosted Remain by a point or so. Full tabs are here.

YouGov for the Times have topline figures of REMAIN 51%, LEAVE 49% – so considerably closer. The YouGov poll now includes a turnout weight (though it made no difference at all to the topline) and a squeeze question, which also bumped Remain up by a point. Full tables are here. On YouGov’s website they’ve also updated the multilevel regression and post-stratification (MRP) model of referendum voting using all their data, which they first posted earlier in the week, that is now also pointing towards a small lead for Remain.

Note that all four of the polls here include Northern Ireland. Most general election polls don’t, and so polls during the EU campaign have varied on whether they do or do not include NI – all these four do.

UPDATE2: Two more polls published on the day itself. Note that these polls were conducted before polls opened, they are only published today. It’s illegal to publish polls conducted on the day until polls close, but perfectly fine to publish polls conducted before polls opened.

Ipsos MORI‘s final poll has topline figures of REMAIN 52%, LEAVE 48%, putting Remain back ahead after a leave lead in MORI’s penultimate poll. MORI have slightly changed their turnout filter for their final poll, basing it on how likely people say they are to vote and how important they say the result is to them. Full tabs are here.

Finally, and a little surprisingly, Populus have produced a final call poll. Populus’s Andrew Cooper has been working with the StrongerIn campaign so the company haven’t been putting out regular polls during the campaign, but they have produced final topline figures of REMAIN 55%, LEAVE 45%. Unexpectedly given the topline results the poll was conducted online (completely messing up that “phone & YouGov saying in, other online saying out” pattern). Populus haven’t released tables yet, so I’ve no details of the weightings or adjustments used.


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Opinium’s weekly poll for the Observer has topline figures of REMAIN 44%(nc), LEAVE 44%(+2), so split right down the middle. The fieldwork was conducted between Tuesday and Friday, but the majority was before the murder of Jo Cox. Full tabs are here.

This isn’t Opinium’s final poll of the campaign – they’ve got one more to come on Wednesday. Still to come tonight there is also a YouGov poll for the Sunday Times. There’s also a ComRes online poll for the Indy and Sunday People, but it doesn’t include EU voting intention (it’s online, and ComRes only do EU voting intention on their phone polls).

UPDATE: There is also new Survation poll in the Mail on Sunday. In this case the fieldwork was conducted on Friday and Saturday, so took place wholly after the death of Jo Cox. Topline figures, with changes since Survation’s midweek poll, are REMAIN 45%(+3), LEAVE 42%(-3) – so Remain are back in the lead after dropping behind in the week. Interesting, but it is as yet only one poll…

UPDATE2: There is a new YouGov poll (one of two tonight) for ITV. Topline figures are REMAIN 42%(+3), LEAVE 44%(-2). Like Survation the poll shows a swing back towards Remain, but unlike Survation this poll was conducted on Wednesday and Thursday, wholly before the attack on Jo Cox, suggesting that there may have been a swing back towards Remain anyway. There is a second YouGov poll out later tonight for the Sunday Times, with fieldwork conducted on Thursday and Friday…


There are two EU referendum polls in the Sunday papers – YouGov in the Sunday Times and Opinium in the Observer. Both of them have the race neck-and-neck: YouGov have REMAIN 49%, LEAVE 51%, Opinium have REMAIN 51%, LEAVE 49%. Tables for YouGov are here, for Opinium are here.

In both cases the topline figures are pretty much unchanged from figures a week ago, remaining roughly neck-and-neck. There is certainly no echo of that ten point Leave lead ORB produced on Friday. My guess is that there has been a little movement towards Leave, but perhaps not of the scale suggested by some of the more startling figures, and not necessarily a lasting one. Opinium’s poll a week ago had a significant underlying shift towards Leave, today’s unchanged figures suggest a consolidation of that movement. YouGov on the other hand showed what appeared to be a similar movement towards Leave two weeks ago, but have since moved back towards neck-and-neck.

The bigger picture from the online polls is still that the race is neck-and-neck. Next week we have a new Ipsos MORI telephone poll due – it will be interesting to see what that shows in the light of the movement towards Leave in ICM’s last phone and the methodology changes that MORI announced on Friday.

Meanwhile, the rest of the YouGov poll had some interesting questions on the campaign. Asked which campaign is more honest, makes more negative attacks, is more realistic or which lies the most there is very little difference – Leave’s ratings are marginally better, but by a tiny amount. The big divide is “scaremongering” – 41% think Remain have done more scaremongering, 28% think Leave have done more. Crucially, this comes through in the immigration and economy questions too: 55% think LEAVE have exaggerated in their claims about immigration, but 49% think the underlying claims are basically true. 63% think REMAIN have exaggerated in their claims about the economy and only 40% think the underlying claims are basically true. Perhaps this is a suggestion that Remain are overplaying their hand a little on the economy – or perhaps, a sign that Leave’s accusations of scaremongering are managing to neuter the economic argument somewhat.


Opinium have a new EU referendum poll in the Observer. The topline figures are REMAIN 43%, LEAVE 41%, Don’t know 14%… if you get the data from Opinium’s own site (the full tabs are here). If you read the reports of the poll on the Observer website however the topline figures have Leave three points ahead. What gives?

I’m not quite sure how the Observer ended up reporting the poll as it did, but the Opinium website is clear. Opinium have introduced a methodology change (incorporating some attitudinal weights) but have included what the figures would have been on their old methodology to allow people to see the change in the last fortnight. So their proper headline figures show a two point lead for Remain. However the methodology change improved Remain’s relative position by five points, so the poll actually reflects a significant move to leave since their poll a fortnight ago showing a four point lead for Remain. If the method had remained unchanged we’d be talking about a move from a four point remain lead to a three point leave lead; on top of the ICM and ORB polls last week that’s starting to look as if something may be afoot.

Looking in more detail at the methodology change, Opinium have added weights by people’s attitudes towards race and whether people identify as English, British or neither. These both correlate with how people will vote in the referendum and clearly do make a difference to the result. The difficulty comes with knowing what to weight them to – while there is reliable data from the British Electoral Study face to face poll, race in particular is an area where there is almost certain to be an interviewer effect (i.e. if there is a difference between answers in an online poll and a poll with an interviewer, you can’t be at all confident how much of the difference is sample and how much is interviewer efffect). That doesn’t mean you cannot or should not weight by it, most potential weights face obstacles of one sort or another, but it will be interesting to see how Opinium have dealt with the issue when they write more about it on Monday.

It also leaves us with an ever more varied picture in terms of polling. In the longer term this will be to the benefit of the industry – hopefully some polls of both modes will end up getting things about right, and other companies can learn from and adapt whatever works. Different companies will pioneer different innovations, the ones that fail will be abandoned and the ones that work copied. That said, in the shorter term it doesn’t really help us work out what the true picture is. That is, alas, the almost inevitable result of getting it wrong last year. The alternative (all the polls showing the same thing) would only be giving us false clarity, the picture would appear to be “clearer”… but that wouldn’t mean it wasn’t wrong.