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What a round trip actually costs, why an option loses money in a flat index, and how to read your own record. No calls, no tips — none of this is investment advice.
Direction is one of three things moving your premium. The other two — time left in the session, and how much movement the market expects — leave no mark on the index chart at all. That is why practising on a chart teaches the wrong number.
7 min read #basics #options #theta #volatility
Brokerage is flat per order, STT is sell-side only, stamp duty is buy-side only, and GST compounds on top of three of them. Here is the whole arithmetic on one BANKNIFTY trade — including the freeze-quantity rule that quietly doubles your brokerage.
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