Motilal Oswal Nifty Midcap 100 ETF (MOM100.BO) is an open-ended exchange-traded fund that seeks to replicate the performance of the Nifty Midcap 100 Index before fees and expenses, subject to tracking error. Launched in January 2011 by Motilal Oswal Mutual Fund, an asset management arm of Motilal Oswal Financial Services Ltd. and headquartered in Mumbai, India, the ETF invests 100% in equity securities of the index constituents, including mid-cap, large-cap, small-cap and other stocks across sectors such as exchange and data platforms, two/three wheelers, computers-software & consulting, heavy electrical equipment, private sector banks, financial technology, compressors/pumps/diesel engines, and consumer electronics; top holdings as of November 30, 2025, include BSE Ltd. (3.74%), Hero MotoCorp Ltd. (2.53%), Persistent Systems Ltd. (2.15%), Suzlon Energy Ltd. (2.07%), and Coforge Ltd. (2.01%). The fund, listed on the National Stock Exchange of India (NSE), provides real-time liquidity in demat form and targets investors seeking mid-cap segment exposure, with assets under management reaching approximately ₹732 crore as of December 2025 and an expense ratio of 0.22%; it operates exclusively within the Indian market. Recent portfolio adjustments reflect index rebalancing, with minor 1-month changes in holdings like BSE Ltd. (+0.48%), Hero MotoCorp Ltd. (+0.21%), and Persistent Systems Ltd. (+0.11%), alongside ongoing tracking of the Nifty Midcap 100 Index's market capitalization-weighted methodology launched in 2005.