Shares of the artificial intelligence (AI) software company dropped as much as another 6% Monday morning. Even after paring some of that decline, shares are lower by 16% over a two-week span, including the 1.6% drop as of 12:30 p.m. ET today.

Other short-sellers have joined the fray in recent weeks. At the end of July, Palantir had a short interest of 54.7 million shares, representing around 2% of all its public stock. Short interest in the firm has increased around 2% since the prior month, according to data from MarketBeat.

Palantir Technologies ($PLTR) stock has come under pressure last week, with shares falling nearly 10% and marking the company’s longest losing