"There _are_ individuals and businesses _earning gain_ in the secondary market as well as in the primary market."

[Wilson Gray]

_To earn gain_ appears to be a unique construction. Perhaps it's some
kind of error. The only similar instance that I've been able to find,
after a (very) cursory search, is:

"Compounding is the mathematical manner where gain on your money in
break _earns gain_ and is added to your principal."

To paraphrase a couple of lines from an indie movie:

"I'm not even going to guess. You figure it out."

[Protagonist threatens a couple of intruders:

"I'm giving you five seconds to get out of my house. I'm not even
going to count. *You* figure it out."

They caved and split.]
--
-Wilson
-----
All say, "How hard it is that we have to die!"––a strange complaint to
come from the mouths of people who have had to live.
-Mark Twain

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