Environmental Tectonics (ETCC, $1.42) was a top loser over the last three months, falling -4 to $1.42 per share. A.I.dvisor analyzed 148 stocks in the Aerospace & Defense Industry for the 3-month period ending May 16, 2025, and found that of them (7) exhibited an Uptrend while of them (2) demonstrated a Downtrend.