Derecognition of Equity & Debt Securities

[Jamesaccountant]

In reference to ASC320-10-40 and ASC321-10-40, when it comes to selling those securities in the middle of an accounting period, do we need to evaluate it at fair value and sell it (separate into 2 entries like the first one below)? Or we can just batch the 2 entries in one entry like the second entry below? Or both procedures are accepted on a case-by-case basis?
Dr.) Investment
Cr.) Gain
Dr.) Cash
Cr.) Investment

OR

Dr.) Cash
Cr.) Investment
Cr.) Gain

I know that it won't affect the overall figures on the FS in either way, but is there any statement as to this treatment in the ASC? Please let me know the correct interpretation of ASC320-10-40 and ASC321-10-40.

Thank you.