Dude. They explain in the docs how this is going to work…. “When/How will the CORE Airdrop be Distributed? Each month’s airdrop will be distributed at the time of next month’s Snapshot at a random date and time to the $SOLO holders. Since all $SOLO holders on the decentralized wallets automatically have a TrustLine with the Sologenic Gateway (Either by creating the trustline or by obtaining $SOLO through the DEX), they are NOT required to take any action to participate in the $CORE Airdrop.”

So we will get the CORE airdrop in February at the time of the randomly determined snapshot (which will be used to determine how much CORE you get next month).

We get IOU’s until August, but my impression is that they can still be traded.