What's the name of this drink?

[litchick]

Hi all,

So, I have yet to discover the name of one of my favorite drinks:
equal parts red and white vermouth, over ice, with a twist

A bartender at a charity function I attended once told me he calls it a "stock merger," both because a lot of his financial type patrons used to drink it back in the day, and because you use stock liquors to make it. This seems as good a name as any, but because I have heard theories that the drink might have originated in Italy, I was curious as to whether there's a real name for this.

As an aside, it's the perfect thing to order at events that have open bars where the choices are otherwise unpleasant. Even with standard martini & rossi, it comes out tasty.

[pclarke]

I've heard of it as a Red and White and as a Duplex, but never as a Stock Merger.

If you have any orange bitters on hand (or at the bar), it gives this drink an extra little touch that really elevates it. It's also good ordered up, though over ice is lovely, too.

Nice cocktail, and you're right about ordering it at open bars--the ingredients are at hand, and it's difficult for a novice bartender to screw up.