The economy needs short-dated options

Banning or proscribing weekly options would be unwise

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A debate is underway in India on whether the state should use its coercive power to prohibit weekly option contracts. This follows regulatory concerns about the scale of retail participation and the high proportion of individual traders who incur losses. While these concerns are understandable, a ban would be a policy error. It is a misdiagnosis of the problem and risks damaging hard-won financial-market development. We should not dismantle functioning markets; we should learn from global experience and foster a deeper, more resilient financial ecosystem.

The debate is being framed incorrectly as a tradeoff between speculation and investor protection. The correct framing, grounded in financial economics, is about whether India should continue on the path toward creating more liquid and more complete markets. Financial derivatives are not only instruments of speculation; they are fundamental tools for customising risk. The Nobel-winning work of Kenneth Arrow and Gérard Debreu provides the theoretical ideal: A "complete market" where a security exists for every possible future "state of the world", allowing any risk to be perfectly hedged. While a truly complete market is unattainable, financial innovation strives to approximate it. Short-dated options are the closest practical instruments we have to one-period Arrow securities, allowing participants to isolate and trade the risk of a single event on a single day. They perform an economic function-enhancing the liquidity and efficiency of the overall securities markets. Banning these instruments would make our markets less complete, less efficient, and less liquid.