There’s a line from the 1960 film The Magnificent Seven that haunts me: “Don’t you ever say that again about your fathers, ...

At the mercy of Calvera, the leader of a band of outlaws, a Mexican village hires seven American gunfighters to free them; the expert gunslingers show the villagers how to defend themselves ...

Those of you that have flipped on CNBC either on purpose or by accident sometime in the past two years may know those companies as the so-called Magnificent Seven, or “Mag 7” in Wall Street-speak.