Tempsens Instruments (India) Limited is set to make its stock market debut on Friday, August 28, 2026, on both the BSE and NSE, with grey market indicators signaling potential listing gains of over 100% following an overwhelming public subscription. The ₹650 crore initial public offering (IPO) was subscribed more than 180 times during its three-day bidding window, reflecting immense institutional and retail demand for the specialized engineering and temperature sensor manufacturer.Grey Market Premium Signals Multi-Fold GainsAhead of the official listing date, unlisted market activity indicates exceptionally strong demand for Tempsens Instruments shares. As of Thursday, the Grey Market Premium (GMP) for the IPO is hovering around ₹300 to ₹317 per share over the upper issue price.With the IPO price band fixed at ₹285 to ₹300 per equity share, the current GMP implies an estimated listing price in the range of ₹600 to ₹617 per share. This translates to a projected listing gain of 100% to 106% for successful allottees. Market observers note that the GMP has remained consistently elevated above 70% to 100% throughout the entire IPO timeline, driven by robust financial performance and favorable industrial tailwinds.Bumper Subscription Across All Investor CategoriesThe ₹650 crore book-built offering—comprising a fresh issue of equity shares worth ₹95 crore and an Offer for Sale (OFS) of ₹555 crore by promoters—saw massive bidding interest across the board during the August 20 to August 24 subscription window.By the end of Day 3, the public issue was subscribed approximately 180 to 184 times overall:Non-Institutional Investors (NIIs): High-net-worth individuals led the demand charge, oversubscribing their allocated quota by well over 200 times.Qualified Institutional Buyers (QIBs): Domestic institutional entities, mutual funds, and foreign portfolio investors aggressively backed the issue, pushing the QIB portion to heavy multi-fold oversubscription.Retail Individual Investors (RIIs): Retail participants showed strong enthusiasm, filling their quota dozens of times over as investors sought access to the lot size of 50 shares (requiring a minimum application of ₹15,000 at the upper price band).Following the close of bidding, the allotment basis was finalized on Tuesday, August 25, with KFin Technologies Limited acting as the official registrar to the issue. Refunds for unallotted applicants and the credit of shares to demat accounts were completed on Thursday, August 27, clearing the runway for the secondary market debut.Key Listing ScheduleInvestors tracking the market debut can keep note of the following finalized timeline details:Official Listing Date: Friday, August 28, 2026Listing Bourses: BSE & NSETrading Start Time: 10:00 AM IST (following pre-open call auction)Issue Price: ₹300 per share (Upper Band)Lead Managers: ICICI Securities Ltd. and JM Financial Ltd.Registrar: KFin Technologies LimitedBusiness Profile & Financial HealthIncorporated in 1990, Udaipur-based Tempsens Instruments (India) Limited is a leading manufacturer of specialized temperature sensors, thermal engineering solutions, electrical heating systems, and specialized industrial cables. The company serves a diverse client portfolio of over 1,000 corporate customers across industries such as metallurgy, glass, power generation, cement, chemicals, and defense manufacturing, while exporting products to more than 80 countries worldwide.Proceeds from the fresh issue segment (₹95 crore) are earmarked primarily for funding capital expenditure requirements, debt repayment to strengthen the balance sheet, and general corporate purposes.On the financial front, Tempsens has demonstrated steady top-line and bottom-line expansion. Net sales grew to over ₹416 crore in FY26, up from ₹367 crore in FY25, while net profits reached ₹63.4 crore. The company's stable operating margins and comfortable debt equity profile have bolstered investor confidence ahead of the ringing of the listing bell.What Analysts Expect for Listing DayWhile grey market premiums serve as an unofficial, unregulated benchmark, financial analysts expect Tempsens Instruments to open with significant double-digit to triple-digit gains, given the high institutional oversubscription.Analysts advise allottees looking for short-term gains to consider locking in partial profits on listing day if the opening meets grey market expectations around the ₹600 mark. Meanwhile, long-term investors are advised to hold onto their allocations or look for dips post-listing, citing the company's strong industrial order pipeline, market share in sensor technology, and disciplined execution track record.Also Read :- Annu Projects IPO Day 3 LIVE: GMP, Subscription Status and Should You Apply?
