The SonicShares Global Shipping ETF (NYSEARCA:BOAT) has become the cleanest way for income investors to play the Strait of Hormuz blockade, and the tape shows it. BOAT closed near $43, up about 37% year to date and roughly 75% over the past year, while throwing off a trailing yield in the 6.3% range. The question ... BOAT is soaring over the Strait of Hormuz blockade, but will it last?