chief executive officer, Left Brain Investment Research

Left Brain Thinking

On Twitter: @LeftBrainIR

Tickers Discussed :UBER, ABNB, DKNG

Links: leftbrainir.com; www.leftbraincapitalmanagement.com;

economist; founder, MaxiFi.com

The Big Interview

On Twitter: @Kotlikoff

Links: Maxifi.com; MaximizeMySocialSecurity.com; kotlikoff.net

founder, MutualFundObserver.com

Money Life Market Call

On Twitter: @MFObserver

Links: MutualFundObserver.com

president, Financial Focus Advisory Services

Technical Difficulties

On Twitter: @LeoLeydon

Links: www.StocksAndTaxes.com

chief executive officer, Conversus

The NAVigator

On Twitter: @stepstonegroup

Links: conversus.com

author, "What We Owe Each Other"

The Book Interview

chief economist, SP Global Ratings

The Big Interview

On Twitter: @SPGlobal Ratings; @PaulGruenwald1

Links: spglobal.com

president, CAZ Investments

Money Life Market Call

Tickers Discussed :AMC, OWL, SII, QCOM, DBX; during "Quick and Dirty:" OPEN, AMT, CRM, TSLA, UBER, LYFT

Links: cazinvestments.com

strategist, The Lamensdorf Market Timing Report; manager, Ranger Equity Bear ETF

Technical Difficulties

On Twitter: @LMTRBrad

Links: lmtr.com; activealts.com; www.advisorshares.com/fund/hdge

executive managing director and co-head of municipal managers at MacKay Shields

The Big Interview

On Twitter: @MacKayShields; @NYLInvestments

Links: www.mackayshields.com; www.nylinvestments.com/mainstay/