According to @EricBalchunas, Bill Ackman would be better served launching an ETF rather than a closed-end fund (CEF) because CEFs are likely to suffer persistent premiums/discounts to NAV, similar to the Europe example he cited, which U.S. investors have shown they dislike (source: @EricBalchunas on X). He added that ETFs solve many of these issues by keeping trading prices closer to NAV, improving pricing efficiency and reducing discount volatility that can hurt trade execution (source: @EricBalchunas on X). For traders, his note implies an ETF wrapper would likely provide more reliable entry/exit around NAV and less slippage risk than a CEF plagued by premium/discount swings (source: @EricBalchunas on X).