A key characteristic of non-traded (non-exchange-listed) REITs is limited liquidity, making A correct. Unlike publicly traded REITs that trade on exchanges and can be sold during market hours, non-traded REIT shares do not have an active public secondary market. Investors often must rely on limited redemption programs (if offered) or wait for a liquidity event (such as listing, merger, or liquidation), which can take years. As a result, investors may face difficulty selling shares quickly or at a predictable price, which is the essence of liquidity risk.

Choice B is misleading because many non-traded REITs are still registered securities sold via broker-dealers; “non-traded” does not automatically mean “private.” Some non-traded REITs are registered but not exchange listed. Choice C is the opposite of non-traded: if it is listed on an exchange, it is a traded REIT. Choice D describes open-end funds that calculate a daily NAV for purchases/redemptions; non-traded REITs do not function like mutual funds with daily NAV transactions (even though some may provide periodic valuations, that is not the defining “strike daily NAV” feature tested on the SIE).

This question tests product knowledge and risk recognition: non-traded REITs may offer income potential and real estate exposure, but the trade-off is often reduced transparency, higher fees, and notably limited liquidity compared with exchange-traded REITs or ETFs.