Naked Option
A naked option refers to a written (sold) call or put option position that is not hedged by an offsetting position in the underlying asset or another option, exposing the writer to theoretically unlimited loss on a naked call or very large loss on a naked put.
Writing a naked call meant selling the right to buy the underlying without holding the underlying itself. If the underlying surged in price, the naked call writer was obligated to provide delivery at the strike price, requiring the writer to purchase the underlying in the open market at the prevailing higher price — theoretically an unlimited liability. Writing a naked put, while having a defined maximum loss (the strike price minus zero, if the underlying went to zero), still exposed the writer to very substantial losses in the event of a sharp decline.
Naked option writing in India was subject to stringent margin requirements established by SEBI and administered through the NSE's SPAN margin system. The SPAN algorithm computed margin requirements based on the worst-case loss across a matrix of price and volatility scenarios, ensuring that at any given time, the exchange held sufficient margin to cover a significant adverse move. For highly volatile stocks or around major events, SPAN margins could be multiples of the option premium itself — a feature intended to prevent undercapitalised writers from accumulating systemic risk.
Despite the risks, naked option writing was a strategy pursued by experienced traders who viewed options as primarily an income-generation tool. Option sellers benefited from time decay (theta) — as each day passed without a large adverse move, the option's extrinsic value eroded, ultimately becoming worthless at expiry if out-of-the-money. Statistical analyses showed that a substantial majority of options expired worthless, which was the basis of the often-cited seller's edge in options markets. However, the infrequent but devastating losses on naked positions underscored the importance of position sizing and stop-loss discipline.
SEBI's regulatory framework required that clients be explicitly informed of the risks of option writing before granting F&O segment access. Brokers were required to collect enhanced margins — including a peak margin obligation under regulations that came into force in August 2021 — to prevent end-of-day margin shortfalls from masking intraday over-leverage. The peak margin framework specifically targeted naked option writers who had historically taken large intraday positions and reduced them before margin snapshots.
A naked option was distinct from a covered option: a covered call involved writing a call while holding the underlying shares, while a cash-secured put involved writing a put while holding sufficient cash to purchase the underlying at the strike. Both covered variants reduced or eliminated the existential risk of the naked position, making them more suitable for conservative income-seeking strategies.