The Indian markets regulator's ban on Wall Street trading giant Jane Street has squeezed volumes in the country's options market, but traders expect activity to snap back as larger investors step in.

The value of options traded plunged to a four-month low on the first major expiration day in India after Jane Street Group’s trading ban.

Whether arbitrage or manipulation, the Jane Street episode highlights a critical truth: markets need more transparency, more accountability, and more human judgment.