An unnatural calm has descended over Canary Wharf banks since the initial EU referendum furore passed like a storm cloud.

While cameramen have been waiting for the iconic Lehman image of bankers marching down the street, Iron Mountain box in their hands, passport in their teeth, it is, very much, business as usual.

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Those who imagined that, post-Brexit the towers of Canary Wharf would uproot, like Beechbone, Finglas, Fladrif and Treebeard in Lord of the Rings, and march their impressive bulks across the channel have been left without a spectacle.

Behind closed doors and glass partitions, bankers are going about their business monitoring markets that are, in terms of the New Reality, relatively calm.

James 'Jes' Staley

Much of this is down to the stiff upper lip brigade led with stone-faced gravitas by Bank of England governer Mark Carney who provided the reassurances the finance houses wanted to hear.

But closer to home, insiders have been impressed by the upbeat and positive message of Jes Staley, new chief executive of Barclays, and the management team of HSBC, which have appeared to be half out the door for several years but slammed it firmly closed when the moment to move seemed most ripe.

HSBC chairman Douglas Flint said: “We said at the time we made the decision [in February] that we’d taken [a Brexit] into consideration and that in the event of this outcome we would not call for that to be revisited.”

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That is not to say that the banks are here to stay for good. But they’re certainly here to stay for now.

Mr Staley told the BBC : “Right now we are not making any plans to pick up and move people from one location to another. “You might have to increase your presence in another location - that doesn’t necessarily mean you have to decrease your location here.”

Read more Is this the beginning of a Canary Wharf Brexodus?

The stress tests and re-capitalisation following the 2008 crisis appear now like a timely rehearsal for the jolt. There was a $2.5trillion market reaction to the EU referendum but not a rolling crisis. Shares in banks regained ground (although are still down) and decisions have been taken in a measured fashion.

Are there dark days ahead for Canary Wharf bankers?

“We saw the one of the biggest one day declines in global wealth in history and the financial system worked fine,” said Mr Staley.

Of course, if the UK fails to set in place a form of the “passporting” agreements that allow British-based companies to trade financial services across Europe, then there will be a re-think and, possibly, the postponed revolution will play out. In anticipation, some jobs are being shipped abroad but insiders have shot down the attempts by Paris to lure the City of London to a city by the Seine.

But for now the mantra is – Keep Calm and Carry On (trading).