LI stock index, March 4

325.17 (week’s change: -1.3%)

52-week return: -2.3%

The Newsday Long Island Index fell for the second straight week as jitters over inflation, higher interest rates and prospective tariffs made stocks less desirable to some investors. Only 10 of the 30 stocks in the index were higher, led by Melville communications systems maker Comtech (+3%). Garden City kitchenware seller Lifetime Brands (-8%) led the decliners. The index is down 4.9 percent year to date.

Applied DNA Sciences (APDN)

Stony Brook

1.60 (week’s change: +11.9%)

52-week return: -20.0%

The supplier of antifraud technology is teaming with a large textile maker to develop “secure sewing threads” that protect items such as running shoes from counterfeiting.

Sino-Global Shipping (SINO)

Roslyn

1.92 (week’s change: -7.7%)

52-week return: -20.7%

News that President Donald Trump was mulling tariffs on steel and aluminum imports took a toll on many companies doing business in China, including this global shipping company.