Double

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Double

The purchase of a call and a put on the same underlying asset with the same strike price and the same expiration date. A double enables one to profit from whatever price movement the underlying takes. That is, if the price goes up, the holder exercises the call, and if it goes down, he/she exercises the put. If one of the options is in the money, the other must be out of the money.
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References in periodicals archive ?
The apparent binding constant obtained from double reciprocal plot (see (6), Figure 5) was (1.66 [+ or -] 0.12) x [10.sup.4] [M.sup.-1] (Table 2) indicating that there was excellent agreement between the two approaches.
Figure 2 shows the double reciprocal plot of initial specific growth rate and the initial substrate concentration for anthracene degrading system.
Dissociation constants of the analogs binding to NOS have been determined to be 15 micromolar and 50 micromolar, respectively, using double reciprocal plot analysis.