Tenneco Clean Air share price jumps on debut — investors book instant gains
Tenneco Clean Air India made a striking market debut on November 19, 2025, when its shares opened at ₹505 on the NSE, a 27.20% premium over the IPO issue price of ₹397. The strong listing left many retail allotment holders with immediate paper profits — here’s a crisp, fact-checked breakdown of what happened and what investors earned.
What happened at listing – Tenneco Clean Air share price
- Listing date: November 19, 2025.
- IPO issue price (cut-off): ₹397 per share.
- NSE open (listing) price: ₹505 — ~27.20% above IPO.
- BSE open price: around ₹498 (about 25.4% premium).
- Lot size: 37 shares (minimum retail investment ~₹13,986 at ₹378–397 band).
How much did investors make per lot?
- Gain per share at NSE open: ₹505 − ₹397 = ₹108. Groww
- Lot size: 37 shares. Groww
- Profit per lot on listing open: 37 × ₹108 = ₹3,996 (paper gain).
Note: Intraday swings were wider — some reports show intra-day highs near ₹517, so actual paper gains could have been higher for sellers who timed better.
Why the listing rallied
- Strong demand pre-listing: The IPO saw heavy interest from institutions and retail investors during subscription. Anchor placement raised significant funds ahead of listing. Major domestic and global funds participated as anchor investors.
- Business profile: Tenneco Clean Air India manufactures exhaust after-treatment systems, catalytic converters, mufflers and other emission control and suspension components — products linked to regulatory tightening and vehicle electrification transitions, which makes the firm attractive to certain investors. IPO Watch
Subscription snapshot & who benefitted
- Media reports show the IPO was heavily subscribed across categories (QIBs, HNIs and retail), with large interest from institutional and anchor investors prior to listing. Exact subscription multiples reported by outlets vary slightly by cut-off times, but the overall picture was strong oversubscription. IPO Watch
Why this matters for markets and investors
- Liquidity & visibility: A successful listing signals investor appetite for well-positioned mid-to-large cap industrial plays tied to auto supply chains. The listing may also improve visibility and secondary-market liquidity for Tenneco Clean Air India. Fortune India
- Short-term vs long-term: Retail investors who sold at the open locked in quick profits (per-lot gains shown above). Long-term returns will depend on execution, margins, client wins and how the company navigates industry cycles.
Quick investor checklist (if you held allotment or consider buying now)
- Confirm your allotment and demat credits via your broker or the registrar. (Allotment date per RHP schedule.) Groww
- Decide: lock in listing gains or hold for fundamentals — check latest company filings and analyst notes.
- Watch for volatility: new listings often see wide intraday swings on day-one and early sessions. Fortune India
Tenneco Clean Air’s debut at ₹505 on NSE marked a healthy listing premium and immediate paper gains for many allotment holders. The listing underlines strong institutional interest in auto-ancillary plays this season, but investors should separate the listing pop from the stock’s medium- to long-term prospects. Stay updated on trading volumes and quarterly results to judge durability.
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