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What is the difference between lot closing and squaring off?

Both mean closing open position; squaring off is common term for intraday traders.

What is the difference between ETF and index fund?

ETF = trades intraday; Index fund = priced once daily. Both track an index.

What is the difference between call debit spread and call credit spread?

Debit = buy lower strike, sell higher strike; Credit = sell lower, buy higher. Options Trading System teaches both.

What is the difference between open-ended and close-ended funds?

Open-ended = redeem anytime; Close-ended = fixed term. Investing differs accordingly.

What is the difference between lot size and contract size?

Lot size = standard unit per exchange; Contract size = underlying quantity per option/future.

What is the difference between open interest and volume?

Volume = traded today; Open interest = total outstanding contracts. Both give market insights.

What is the difference between primary and secondary market?

Primary = new issue; Secondary = existing shares traded. Investing happens mostly in secondary market.

What is the difference between NSE and BSE?

Both are stock exchanges; NSE = electronic, BSE = older exchange with electronic access now.

What is the difference between put-call parity and arbitrage?

Put-call parity = theoretical price relation; Arbitrage = exploit mispricing. Options Trading System explains in practice.

What is the difference between cash market and derivatives market?

Cash = spot trading; Derivatives = contracts on underlying assets.