====== Closing Price ======

Most analysis is based on end-of-day price data, which is the mathematical mid-point of the
best available bid-offer spread at exchange closing (or other market-standard sampling time).[(:ref:trader_construction_kit)]

If the market for a product is quoted at $24.95 bid, $25.05 offered, then the closing mark will be $25.00[(:ref:trader_construction_kit)]

Though nothing has traded and value has arguably never significantly diverged from the initial
$25.00 level, it appears from the mid-market closing data that the market has rallied $1.00 then
suddenly crashed down $2.00.[(:ref:trader_construction_kit)]