Bear: Bear is one who expects a decline in prices. The Bear trader is is the opposite of a Bull trader. A Bear (bearish trader) expect to profit on declining price. A news item is considered bearish if it is expected to result in lower prices.
High: High is the highest price of the day for a particular futures or options on futures contract.
Trader: Trader is a merchant involved in cash commodities or a professional speculator who trades for his own account and who typically holds exchange trading privileges.
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Naked options trading is very risky - many people lose money trading them. It is recommended contacting your broker or investment professional to find out about trading risk and margin requirements before getting involved into trading uncovered options.