Roundhill Investments' Dave Mazza offers a wide perspective on the market moves seen over the last week. He believes investors in high-flying stocks tied to A.I., quantum, and nuclear are reassessing the current economic environment and taking chips off the table until there's more clarity. That said, Dave says "under the radar" plays have seen huge upswings, pointing to healthcare stocks as beneficiaries. He later looks ahead to Nvidia's (NVDA) earnings later this week.