Under normal market conditions, the Fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in equity securities of large capitalization companies or instruments with similar economic characteristics. For purposes of the Fund’s 80% policy, “large capitalization companies” are those within the range of capitalizations of the Underlying ETF’s Index (as defined below). Cash and cash equivalent investments associated with a derivative position will be treated as part of that position for purposes of the Fund’s 80% policy. The Fund pursues an options strategy which seeks to provide the Fund with exposure to the share price return of the Underlying ETF up to an approximate upside limit (the “Approximate Cap”), while seeking to provide downside protection against Underlying ETF losses between approximately 5% to 20% (the “Approximate Buffer”) and lower volatility over each calendar quarter, or Hedge Period (as defined below). The Fund principally buys and sells customized call and put equity or index exchange-traded options contracts that reference the Underlying ETF, referred to as FLexible EXchange Options (“FLEX Options”), as well as other listed options that reference the price performance of the Underlying ETF, the Underlying ETF’s Index, or exchange-traded funds (“ETFs”) that replicate the Underlying ETF’s Index (collectively, “exchange-traded options”).

The Underlying ETF is an ETF that seeks to track the investment results of the S&P 500 Index (the “Underlying ETF’s Index”), which measures the performance of the large-capitalization sector of the U.S. equity market, as determined by S&P Dow Jones Indices LLC. As of October 31, 2023, the Underlying ETF’s Index included approximately 80% of the market capitalization of all publicly-traded U.S. equity securities. The securities in the Underlying ETF’s Index are weighted based on the float-adjusted market value of their outstanding shares. The

Underlying ETF’s Index consists of securities from a broad range of industries. The components of the Underlying ETF’s Index are likely to change over time.

The Underlying ETF is managed using a representative sampling indexing strategy. “Representative sampling” is an indexing strategy that involves investing in a representative sample of securities that collectively has an investment profile similar to that of an applicable underlying index. The securities selected are expected to have, in the aggregate, investment characteristics (based on factors such as market capitalization and industry weightings), fundamental characteristics (such as return variability and yield) and liquidity measures similar to those of an applicable underlying index. The Underlying ETF may or may not hold all of the securities in the Underlying ETF’s Index. Representative sampling indexing may subject the Underlying ETF to “tracking error,” which is the divergence of the Underlying ETF’s performance from that of the Underlying ETF’s Index. This risk may be heightened during times of increased market volatility or other unusual market conditions. The prospectus and other reports of the Underlying ETF (Ticker: IVV) are available on the Securities and Exchange Commission’s website at www.sec.gov. Shares of the Underlying ETF are listed on NYSE Arca, Inc.

An options contract is an agreement between a buyer and seller that gives the purchaser of the option the right to buy (in the case of a call option) or sell (in the case of a put option) a particular asset at a specified future date at an agreed upon price (commonly known as the “strike price”). When the Fund purchases a call option, the Fund pays a premium and receives the right, but not the obligation, to purchase shares of the Underlying ETF or other reference asset at a strike price by or on the expiration date. When the Fund purchases a put option, the Fund pays a premium and receives the right, but not the obligation, to sell shares of the Underlying ETF or other reference asset at a strike price by or on the expiration date. When the Fund writes (sells) a call option, the Fund receives a premium and gives the purchaser of the option the right to purchase from the Fund shares of the Underlying ETF or other reference asset at a strike price by or on the expiration date. When the Fund writes (sells) a put option, the Fund receives a premium and gives the purchaser of the option the right to sell to the Fund shares of the Underlying ETF or other reference asset at a strike price by or on expiration date.

FLEX Options provide investors with the ability to customize key option contract terms like strike price, style and expiration date, while avoiding the counterparty exposure of over‑the‑counter options positions. Like traditional exchange-traded options, FLEX Options are guaranteed for settlement by the Options Clearing Corporation (the “OCC”), a market clearinghouse that guarantees performance by counterparties to certain derivatives contracts by becoming the “buyer for every seller and the seller for every buyer.” The OCC may make adjustments to FLEX Options for certain significant events. The FLEX Options in which the Fund invests are European style, which are exercisable at the strike price only on the expiration date. The FLEX Options traded by the Fund are listed on the Chicago Board Options Exchange (“CBOE”).

Options positions are marked to market daily. The value of the FLEX Options in which the Fund invests is affected by changes in the value and dividend rates of the securities held by the Underlying ETF, changes in interest rates, changes in the actual or perceived volatility of the Underlying ETF’s Index and the remaining time to the options’ expiration, as well as trading conditions in the options market. The Fund will typically trade options that expire one business day after the end of each calendar quarter or “Hedge Period” (January 1 through March 31, April 1 through June 30, July 1 through September 30 and October 1 through December 31), subject to the quarterly rebalancing process described below. The Fund will be indefinitely offered and is not intended to terminate after one or more Hedge Periods.

For each Hedge Period, the Fund trades a combination of put and call exchange-traded options. Specifically, the Fund buys a call option with a strike price that is very low (approximately 1% or less) relative to the Underlying ETF’s share price on the day of purchase (a “zero strike call”), which provides the Fund with exposure to the share price return of the Underlying ETF. The Fund creates the Approximate Buffer by buying a put option and writing a put option with the strike price of the bought put option being higher than the strike price of the written put option (a “put spread”). The Fund simultaneously writes a call option with a higher strike price relative to the Underlying ETF’s share price to collect a premium that it uses to offset the premium paid to enter into the put spread (a “capped call”).

The capped call subjects the Fund to the Approximate Cap as it limits the Fund’s ability to realize any increase in the value of the Underlying ETF above the strike price. The Approximate Cap for each Hedge Period is based on the strike price of the capped call for that Hedge Period. The strike prices for the capped calls will change for each Hedge Period depending on the prevailing market conditions and the cost of the put spread for that Hedge Period, resulting in a different Approximate Cap for each Hedge Period.

The Fund will seek to enter into the combination of options transactions described above if there are any inflows, or creation transactions, during a Hedge Period. This will occur even in circumstances where the Fund would receive a negligible premium for writing an out‑of‑the‑money call or put option which may potentially give up more sizable returns to the extent that the option later becomes in the money.

In order to obtain economic exposure to the Underlying ETF, in lieu of purchasing an approximately three-month zero strike call for a Hedge Period, the Fund may instead, among other things: purchase a longer maturity zero strike call; purchase shares of the Underlying ETF; purchase one or more other ETFs that replicate the Underlying ETF’s Index; purchase equity securities in seeking to track the share price return of the Underlying ETF; or invest in U.S. treasuries, money market funds and/or other cash equivalents and purchase and sell a combination of call and put options that seek to replicate exposure to the Underlying ETF. The Fund’s investments in equity securities will be primarily in common stocks of companies held by the Underlying ETF. The Fund’s portfolio of equity securities is expected to have a risk/return profile similar to that of the Underlying ETF.

For the current Hedge Period of October 1 through December 31, the Approximate Cap is 106.87% prior to taking into account any fees or expenses charged to the Fund. When the Fund’s annualized management fee of 0.50% of the Fund’s average daily net assets is taken into account, the Approximate Cap for the current Hedge Period is reduced to 106.745%. The returns that the Fund seeks to provide also do not include the costs associated with purchasing shares of the Fund.

The Approximate Buffer that the Fund seeks to provide is only operative against Underlying ETF losses between approximately 5% to 20% for the applicable Hedge Period; however, there is no guarantee that the Fund will be successful in its attempt to provide buffered returns. The Approximate Buffer is provided prior to taking into account any fees or expenses charged to the Fund. These fees and any expenses will have the effect of reducing the Approximate Buffer amount for Fund shareholders for a Hedge Period. When the Fund’s annual management fee equal to 0.50% of the Fund’s daily net assets is taken into account for a Hedge Period, the net Approximate Buffer for the Hedge Period is between 5.125% and 20%, meaning that the Approximate Buffer for the Hedge Period, after fees and expenses charged to the Fund, will not be effective until Underlying ETF losses reach 5.125%.

As the Fund approaches the end of each Hedge Period (typically three business days prior to the end of the Hedge Period), the Fund will begin rebalancing its portfolio out of the options expiring one business day after the end of the current Hedge Period (the “Expiring Options”) and into options expiring one business day after the end of the next Hedge Period approximately three months later (the “New Options”) (the “Rebalance Period”). At the end of the Hedge Period, the Fund will only hold New Options.

During the Rebalance Period, the Fund may have a blended portfolio consisting of both the Expiring Options and the New Options. If the Fund has a blended portfolio during the Rebalance Period, the returns of the Fund during that period will be the weighted returns of the positions in the blended portfolio. A blended portfolio of Expiring Options and New Options during a Rebalance Period will impact the Fund’s ability to realize the full benefit of the Approximate Buffer and may subject the Fund’s return to an upside limit that is slightly lower or higher than the Approximate Cap for the applicable Hedge Period. Accordingly, investors may bear losses against which the Approximate Buffer is anticipated to protect and may be subject to an upside limit that is lower than the Approximate Cap.

The Fund will not receive or benefit from any dividend payments made by the Underlying ETF. The Fund is not an appropriate investment for income-seeking investors.

The Approximate Buffer and Approximate Cap for a Hedge Period apply to Fund shares held over the entire Hedge Period. An investor that purchases Fund shares after the beginning of a Hedge Period, or sells Fund shares before the end a Hedge Period, may not fully realize the Approximate Buffer or Approximate Cap for the Hedge Period and may be exposed to greater risk of loss. For example, if an investor purchases Fund shares during a Hedge Period at a time when the Underlying ETF’s share price has decreased from its price at the beginning of the Hedge Period, the investor’s buffer may be decreased. Conversely, if an investor purchases Fund shares during a Hedge Period at a time when the Underlying ETF’s share price has increased from its price at the beginning of the Hedge Period, the investor’s upside limit may be lowered and the investor may experience losses beyond approximately the first 5% of Underlying ETF losses prior to reaching the downside protection offered by the Approximate Buffer. The Approximate Cap and Approximate Buffer, and the Fund’s position relative to each, should be considered before investing in the Fund.

In periods of extreme market volatility, the Fund’s return may be subject to an upside limit significantly below the Approximate Cap and downside protection significantly lower than the Approximate Buffer. An investor may lose their entire investment and an investment in the Fund is only appropriate for investors willing to bear those losses.

Following the close of business on the last day of each Hedge Period, the Fund will file a prospectus supplement that discloses the Fund’s Approximate Cap (gross and net of the unitary management fee) for the next Hedge Period. The Fund’s Approximate Cap (net of the unitary management fee) for the current Hedge Period, along with Fund’s position relative to the Approximate Buffer and Approximate Cap, will be available on the Fund’s website, www.iShares.com.

The Fund is classified as non‑diversified under the Investment Company Act of 1940, as amended (the “1940 Act”).