Here are the key triggers behind a 20% surge in this ₹2,300 crore market cap stock

Shares of Dynamic Cables Ltd., the manufacturer and supplier of cables and conductors, are locked in a 20% upper circuit on Wednesday, August 20.In an exchange filing on Tuesday, the company highlighted that the Bureau of Indian Standards, which is the National Standards body, has approved the grant of licenses to the company to manufacture high conductivity aluminium alloy stranded conductors.

License has also been granted to the company for manufacturing thermosetting insulated armoured fire survival cables for fixed installations, having smoke and corrosive gases, when affected by fire for working voltages up to and including 1,100 V ac and 1,500 V dc.

Both these licenses are valid until August 9, and August 12, 2026.In addition, as a result of their debottlenecking initiatives and incremental capex that the company has undertaken at its existing plant over the last six months, the ramped-up production capacity can now support revenue of up to ₹135 crore per month, higher than the previous assessment of ₹100 crore.

“The utilisation of the above revenue potential shall depend upon product mix, orders in hand and delivery schedules, which vary on a month-on-month basis,” the exchange filing stated.

As of the June quarter, promoters of Dynamic Cables had a 68.18% stake in the company. The company does not have any major institutional holdings, while retail shareholders, or those with authorised share capital of up to ₹2 lakh, had a 19% stake.

Shares of Dynamic Cables are locked in a 20% upper circuit at ₹480. The stock needs to gain another 14% to retest its recent 52-week high of ₹547. Despite this move, the stock is still down 2% for 2025. The stock has a market capitalisation of over ₹2,300 crore.