risk of writers of binary puts is limited to the cash settle- ment amount of the option, and a binary put writer may be required under exchange rules to deposit the full cash settlement amount at the time the option is written. The paragraph numbered 5 on page 65 of the Book- let is replaced with the following paragraph: 5. The risk of being an option writer may be reduced by the purchase of other options on the same underlying interest — and thereby assuming a spread position — or by acquiring other types of hedging posi- tions in the options markets or other markets. However. even where the writer has assumed a spread or other hedging position, the risks may still be significant. See paragraph 1 under "Other Risks" below. The risk profile of a spread where the long and short legs we options of different types Is not the same as where both legs are options of the same type. For example, where the short leg is a conventional option, the risk-reducing character- istics of a long leg consisting of binary or range options we different than where the long leg Is a conventional option because of the fixed cash settlement amount of binary options and the unique payout structure of range options. The second full paragraph on page 68 of the Booklet is replaced with the following paragraph: In the case of straddle writing, where the investor writes both a put and a call on the same underlying interest at the same exercise price in exchange for a combined premium on the two writing transactions, the potential risk is unlimited (except in the case of canoed options or binary options). Except where a straddle con- sists of binary options, to the extent that the price of the underlying interest is either below the exercise price by more than the combined premium, or above the exercise price by more than the combined premium, the writer of a straddle will incur a loss when one of the options is exer- cised. Indeed, if the writer is assigned an exe