CTO Interview: Today's guest is Joseph Wesley, Founder & CEO of Vesel Interactive.

He discusses:

• An overview of his background in the derivatives market?
• What is Vesel?
• Who is Vesel's end user?
• How many firms are using the Vesel system right now?
• How does Vesel generate your derivatives volume reports?
• Why do firms share their data with Vesel?
• What safeguards are there against firms under/over-reporting their volume or marketshare?
• An overview of VolAxe?
• How easy is it for clients to build their own hook into the system using the API?
• How does this offering compare with what the guys at EQ derivatives are offering?
• Teases of upcoming Vesel developments

Listener Mail: Listener questions and comments

• Question from Avalone - What is the take on coinbase. Seems to be making a lot of headlines. Exchange went live this morning. Any takers out there for these bitcoin things?
• Question from VTech - Are there specific GUI challenges for options front ends vs. equities? I know that options have more series than equites. Does that translate into any unique needs for those products vs. standard cash equities? I am studying UX at school with the hopes of breaking into the financial realm after graduation, perhaps on the derivatives software side.
• Question from Mark Brant - @Options Please explain how options block trades are executed and how to transition to block trading from retail work. Thanks!