Lockheed Martin investors have two ways to win -- and may not need either of them.

The Lockheed Martin ( LMT -0.06% ) F-22 Raptor stealth fighter is arguably the most expensive fighter jet ever built, costing an estimated $400 billion per unit . That's part of the reason it's no longer being built, by the way. (The F-22 program was canceled more than a decade ago , although the plane remains in service.)

Now, President Donald Trump wants to have the Air Force buy a new fighter jet that could cost even more. Two of them, in fact.

Upgrading the F-22, and the F-35, too

As Reuters reported earlier this month, the president recently raised the possibility of having Lockheed build a new stealth fighter, based on Lockheed's F-35 stealth fighter but with two engines instead of ju

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