Overwrite


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Overwrite

An option strategy that involves writing more option contracts than the writer expects to have exercised. A writer overwrites contracts in order to collect the premiums. He/she chooses the securities underlying the contracts based on whether they are overvalued or undervalued. One overwrites calls if one believes that the underlying securities are overvalued because one expects a price correction that will result in the calls going out-of-the-money. For the same reason, one overwrites puts if one believes that the underlying securities are undervalued.
References in periodicals archive ?
But if the floppy drive or tape drive that overwrites the data is aligned differently from the drive that originally wrote it, data may be relatively easy to recover with special software or altered drives.
This single-pass overwrite feature eliminates an additional erasure cycle.
But any PC user who is trying to purge his or her system of confidential data will want to completely overwrite the sectors on the hard drive where the data resides.
This multiple overwrite process (optionally up to eight overwrites) renders the original data unrecoverable, even by sophisticated laboratory techniques applied to hard drives removed from the control unit.
In addition, the controller includes a Write Protect Pin, which offers hardware protection for the data stored on the flash media from any unintentional data overwrites, such as those commonly caused by system viruses.
WP# Pin secures the information stored on the ADM from any unintentional data overwrites, such as those commonly caused by system viruses.
Security features include data encryption for network transmission, administrator and user authentication, an optional DataOverwriteSecurity System (DOSS) that overwrites the hard drive after every job, and embedded masking patterns to prevent unauthorized copying.
ERASE, by default, overwrites a volume once making all data unrecoverable to any normal program that uses conventional z/OS access.
Accidental overwrites due to inserting or partially formatting the wrong tape are not uncommon.
Once the payload activates, the worm overwrites the data found in all DOC, XLS, MDB, PPT, PPS, ZIP, RAR, PDF and DMP files.
Sharp secures MFPs through the firmware via the Sharp DSK, which encrypts and overwrites data stored on the hard drive.