[GNC] Recording a "price margin code change"

[Steven N. Severinghaus]

Hi, all. I had an odd transaction labeled as a "price margin code 
change" show up on a brokerage account recently. It appears to represent 
having "sold" all of my shares at one price, then "buying" them back at 
a slightly different price, with the difference made up in having 
somewhat more or fewer shares, depending on the commodity. Afterward, I 
have the same dollar value in the account, just with a different number 
of shares at a different price.

Is there a good way to record this in Gnucash? It feels vaguely like a 
stock split or merger, but I don't see exactly how I'd use that function.

I could just enter a single transaction that adjusts the number of 
shares up or down, using the new price. After that, the dollar value of 
the account would be the same as before and the number of shares would 
match what the brokerage says, but there would be a crazy jump in the 
price history for the commodity, and some corresponding income or 
expense that is meaningless (representing the buy/sell of the shares at 
the old price).

Alternatively, I could just create a new Gnucash account and commodity, 
and basically "sell" all of the shares at the old price, then "buy" the 
new commodity with that money. It would just cause a giant, meaningless 
transaction sequence and would sort of disconnect the history of the 
account. It feels like a worse choice, given that the price difference 
is just a couple percent.

Hope that makes sense. Any thoughts? Anyone seen this happen before?

Regards,
-Steve