Below is a detail of marketable securities (in thousands):


	September 30, 2023		December 31, 2022
Marketable securities	$	1,638	$	285
Total	$	1,638	$	285

At September 30, 2023 and December 31, 2022, the Company’s marketable securities consisted of investments in a publicly traded money market mutual fund with a ticker symbol SSPXX. The underlying money market instruments were primarily comprised of certificates of deposit and financial company asset backed commercial paper. At September 30, 2023 the investment portfolio had a weighted-average maturity of 45 days. At December 31, 2022 the investment portfolio had a weighted-average maturity of 48 days. The gain recognized in connection with the investment in marketable securities for the three and nine months ended September 30, 2023 was $0.04 million and $0.4 million, respectively, and recorded as a component of interest income in the unaudited condensed consolidated statements of operations. The gain recognized in connection with the investment in marketable securities for the three and nine months ended September 30, 2022 was $0.1 million and $0.4 million, respectively, and recorded as a component of interest income in the unaudited condensed consolidated statements of operations.