Blog
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.
Buying an option costs the premium. Selling the same contract can block a hundred times that, because short-option margin is sized off the underlying's notional value, not off the premium. Here is why, and what it means for position sizing.
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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