<div>关于Notes Book 5的P191 和P195的两段话有矛盾？</div><div><br/></div><div>P191:</div><div><br/></div><div>3. Long put: the buyer of a put option --- has the right to sell the underlying asset.</div><div><br/></div><div>4. Short put: the writer(seller) of a put option --- has the obligation to buy the underlying asset. </div><div><br/></div><div>但是，在P195中，却说：</div><div><br/></div><div>Put options on futures contracts give the holder the option to take on a short futures position at a futures price equal to the strike price.The writer has the obligation to take on the oppostie (long) position if the option is exercised.</div><div><br/></div><div><br/></div><div> 还有，我个人认为，书中不断提到"holder"of the option和"owner"of the option都是指的是the long (call/put).不知道大家是怎么看的？</div>