Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun finance Simultaneous expiry on US markets of stock index futures, stock index options, stock options, and single stock futures, which takes place on the third Friday of March, June, September, and December. (Prior to single stock futures those days were
triple witching .)
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
The idea of witching for these days is from the unusual patterns of trading that can occur ahead of the contract expiries.
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