NYLIM MacKay Muni Short Duration ETF (NYSEARCA:MMSD) Sees Significant Increase in Short Interest

Posted by Dante Gardener on Oct 12th, 2026

NYLIM MacKay Muni Short Duration ETF (NYSEARCA:MMSD – Get Free Report) was the recipient of a significant growth in short interest during the month of September. As of September 30th, there was short interest totaling 13,900 shares, a growth of 327.2% from the September 15th total of 3,254 shares. Based on an average daily volume of 16,265 shares, the days-to-cover ratio is currently 0.9 days. Approximately 0.4% of the shares of the company are short sold.

Institutional Investors Weigh In On NYLIM MacKay Muni Short Duration ETF

Several large investors have recently made changes to their positions in MMSD. Royal Bank of Canada increased its position in NYLIM MacKay Muni Short Duration ETF by 107.8% in the 1st quarter. Royal Bank of Canada now owns 39,661 shares of the company’s stock valued at $1,002,000 after acquiring an additional 20,577 shares during the period. Cetera Investment Advisers acquired a new stake in NYLIM MacKay Muni Short Duration ETF in the 1st quarter valued at about $416,000. Finally, Breakwater Capital Group bought a new stake in NYLIM MacKay Muni Short Duration ETF during the first quarter worth approximately $267,000.

NYLIM MacKay Muni Short Duration ETF Trading Up 0.2%

Shares of NYSEARCA MMSD traded up $0.06 during midday trading on Monday, hitting $24.83. The company’s stock had a trading volume of 19,448 shares, compared to its average volume of 12,176. The firm’s fifty day moving average price is $25.07 and its 200-day moving average price is $25.24. NYLIM MacKay Muni Short Duration ETF has a 1-year low of $24.59 and a 1-year high of $26.10.

NYLIM MacKay Muni Short Duration ETF Company Profile

(Get Free Report)

The NYLI MacKay Muni Short Duration ETF (MMSD) is an exchange-traded fund that mostly invests in broad credit fixed income. The fund is actively managed, seeking current income exempt from federal tax through primarily investment grade municipal bonds. The fund incorporates ESG risk assessments into its strategy while maintaining an average portfolio duration of 1-3 years. MMSD was launched on May 6, 2025 and is issued by New York Life Investments.