[TimChallenge] this morning i nailed IDXG for a profit of $590 and then got back in and got slammed cause it went down $2 a share in seconds

[TimChallenge] They had a private placement @ 6.75 per share IDXG

[TimChallenge] Hi guys. I am a new challange student. If someone could explain to me really quick that happened to IDXG. Like why did it just drop $2 a share in a second. Thanks