New Delhi, Oct. 13 -- Extending its winning run to a fifth consecutive trading session, small-cap Cubex Tubings shares were locked in the 5% upper circuit in Tuesday's trade on October 13, hitting a fresh record high of Rs.191.30 apiece.

The five-day rally has resulted in a cumulative gain of 29%, turning the stock's October returns positive. For context, when a stock repeatedly hits its upper circuit limit, it indicates strong buying interest, with buyers consistently placing orders on the exchanges amid limited selling activity.

However, no fresh fundamental triggers have emerged to explain the surge, with the company's latest major update relating to its proposed fund-raising plans, announced last week.

In its regulatory filing date...