https://v2.webnotes.in/tags/theta-decay/Recent content in Theta Decay on WebNotesHugoen-INSun, 21 Jun 2026 00:00:00 +0000https://v2.webnotes.in/weekly-vs-monthly-expiry/Sun, 21 Jun 2026 00:00:00 +0000https://v2.webnotes.in/weekly-vs-monthly-expiry/<p><strong>Weekly and monthly expiry</strong> are the two tenors in which Indian exchange-traded options trade, distinguished by how often a contract expires and, since the 2024 to 2025 reforms, by how few instruments carry a weekly. After the <a href="https://v2.webnotes.in/sebi/">Securities and Exchange Board of India</a> restricted weekly options to one index per exchange in November 2024, only the <a href="https://v2.webnotes.in/nifty-50/">Nifty 50</a> on the <a href="https://v2.webnotes.in/national-stock-exchange/">National Stock Exchange</a> and the <a href="https://v2.webnotes.in/sensex/">Sensex</a> on the <a href="https://v2.webnotes.in/bombay-stock-exchange/">Bombay Stock Exchange</a> have a weekly contract, while every single-stock option trades in a monthly tenor only.</p>