VIX is a ticker symbol for the CBOE Volatility Index, a popular measure of the implied volatility of SPX index options; the VIX is calculated by the Chicago Board Options Exchange (CBOE).
VIX ແມ່ນສັນຍາລັກ ticker ສໍາລັບ CBOE Volatility Index, ເປັນມາດຕະການທີ່ມີຄວາມນິຍົມຂອງການປ່ຽນແປງທາງບວກຂອງຕົວເລືອກ Index SPX; VIX ແມ່ນຄິດໄລ່ໂດຍ Chicago Board Options Exchange (CBOE).