Ross Mayfield, investment strategist at Baird, says that the Federal Reserve "is going to be very hard pressed to find a reason to cut [rates] here," and he thinks that if the central bank does have to make rate reductions down the road, "it won't be for reasons investors would be excited about." Mayfield says he remains bullish, noting that "a consolidation period is probably in order," setting up a volatile summer setting up a continuation of the bull market later in the year, barring any sort of exogenous shock. And speaking of shocks, Mayfield addresses what he sees as building signs of a market bubble, and while he says they bear watching, he is not expecting that kind of action to result from current conditions.

Todd Rosenbluth, head of research at VettaFi, makes Roundhill Memory — a brand-new fund that has raked in billions of dollars in assets in just weeks since it opened — his "ETF of the Week," noting that the fund has gotten off to a gangbusters start but that the fund's focus on just a few hot stocks should have investors concerned about whether it's a flash in the pan or here to last.

Will Rhind, chief executive officer at GraniteShares, returns to the Market Call, and focuses largely on business-development companies, which got hammered due to software lending in March, rebounded sharply in April but remain unloved by the market today. GraniteShares' HIPS U.S. High Income ETF invests largely in BDCs and closed-end funds; Rhind outlines the current yield outlook in that space and for master limited partnerships.