The term 'PART OF OTC' is composed of two crossword solutions: OVER (4 letters) and THE (3 letters). The acronym OTC stands for OVER-the-Counter, which refers to securities that are not listed on a formal exchange. These securities are traded through market makers and other brokers, and are not subject to the same regulations as those listed on an exchange. Therefore, the term 'PART OF OTC' can be interpreted as referring to any security that is traded OVER-the-counter.