TMC stock dips after Monday’s slide as deep-sea mining rules return to the spotlight
NEW YORK, December 30, 2025, 10:23 ET — Regular session Shares of TMC the metals company Inc (TMC) were down about 0.2% at $6.31 in morning trading on Tuesday, after dropping 7.3% in the previous session. The stock has traded between $6.28 and $6.46 so far in the regular session. Nasdaq TMC is one of the few U.S.-listed ways to bet on commercial deep-sea mining — the push to harvest potato-sized polymetallic nodules from the ocean floor that contain nickel, copper, cobalt and manganese. For investors, the near-term story hinges on permitting and legal frameworks more than on near-term earnings