What is the relationship between 'Natera' and 'Nasdaq' in the context of the input sentence.
Options: stock exchange, owner of, developer, product/material produced

Photo Release -- Nasdaq Welcomes Natera Inc. to the Nasdaq Stock Market ET | Source: The NASDAQ OMX Group, Inc. photo-release Natera Inc., a leading genetic testing company that develops and commercializes non-invasive methods for analyzing DNA, opened for trading on The Nasdaq Stock Market on July 2, 2015.
stock exchange