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CSTM Pre-Market

DatePre-market PricePre-market HighPre-market Low
-$15.43$15.43$15.43

Data last updated - -.

CSTM Pre-Market Trading Summary

As of – on -, CSTM is trading at $15.43 in the pre-market session. This reflects an decrease of -$0.93 (-5.68%) compared to the previous market session close of $16.36.

So far today, CSTM stock has traded between a low of $15.43 and a high of $15.43 during pre-market hours. The latest trade was recorded at $15.43.

Pre-market trading

How to Buy or Trade Constellium NV Class A (CSTM) Before the Market Opens

Looking to trade Constellium NV Class A stock (CSTM) before the market opens? Public offers access to pre-market trading between 4:00 AM and 9:30 AM ET, giving investors the flexibility to place trades outside of regular market hours. Keep in mind that extended-hours trading may involve lower liquidity and wider bid-ask spreads compared to normal sessions. Follow the steps below to get started.

  1. 1

    Sign up for a brokerage account on Public

    It's easy to get started. You can sign up an account directly on our website or by downloading the Public app for iOS or Android.

  2. 2

    Add funds to your Public account

    There are multiple ways to fund your Public account––from linking a bank account to making a deposit with a debit card or wire transfer.

  3. 3

    Choose how much you’d like to invest in Constellium NV Class A stock

    Navigate to the Explore page. Then, type Constellium NV Class A into the search bar. When you see Constellium NV Class A stock appear in the results, tap it to open up the purchase screen.

  4. 4

    Manage your investments in one place

    You can find your newly purchased Constellium NV Class A stock in your portfolio––alongside the rest of your stocks, ETFs, crypto, treasuries, and alternative assets.

CSTM Pre-Market Price History

DatePre-Market OpenPre-Market CloseChange
Sep 16, 2025$15.16$15.160.00%
Sep 15, 2025$14.94$14.940.00%
View all

FAQs About Constellium NV Class A (CSTM) Pre-Market

As of – ET, CSTM is trading at $15.43 in the pre-market session, down -$0.93 (-5.68%) from the previous market close of $16.36. Pre-market prices reflect early trading activity before the regular market opens at 9:30 AM ET.

CSTM is currently trading down in pre-market, with a price of $15.43, which is -$0.93 (-5.68%) lower than the previous close of $16.36. Pre-market movement shows how the stock is trending ahead of the open.

As of the latest pre-market session, CSTM has traded between a low of $15.43 and a high of $15.43. These prices reflect the range of early trading activity before the regular market opens.

Pre-market trading for CSTM on Public begins at 4:00 AM ET and continues until the market opens at 9:30 AM ET. These extended trading hours let investors place orders outside the regular session, though execution and liquidity may vary.

You can trade CSTM before market open through brokerages that support extended-hours trading, such as Public. Pre-market access on Public is available from 4:00 AM to 9:30 AM ET. Get started with a Public brokerage account to trade CSTM before the market opens.

Constellium NV Class A (CSTM)

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Stocks, ETFs, Options, Bonds.
Self-directed brokerage accounts and brokerage services for US-listed, registered securities, options, and Bonds, except for treasury securities offered through Jiko Securities, Inc., are offered to self-directed customers by Open to the Public Investing, Inc. (“Public Investing”), a registered broker-dealer and member of FINRA & SIPC. Additional information about your broker can be found by clicking here. Public Investing is a wholly-owned subsidiary of Public Holdings, Inc. (“Public Holdings”). This is not an offer, solicitation of an offer, or advice to buy or sell securities or open a brokerage account in any jurisdiction where Public Investing is not registered. Securities products offered by Public Investing are not FDIC insured. Apex Clearing Corporation, our clearing firm, has additional insurance coverage in excess of the regular SIPC limits. Additional information can be found here.

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If you are enrolled in our Options Order Flow Rebate Program, Public Investing will share a percentage of our estimated order flow revenue for each completed options trade as a rebate to help reduce your trading costs. Rebate rates vary monthly from $0.06-$0.18 and depend on your current and prior month’s options trading volume. This rebate will be deducted from your cost to place the trade and will be reflected on your trade confirmation. To learn more, see our Options Rebate Program Terms & Conditions, Order Rebate FAQ and Fee Schedule.

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“Bonds” shall refer to corporate debt securities and U.S. government securities offered on the Public platform through a self-directed brokerage account held at Public Investing and custodied at Apex Clearing. For purposes of this section, Bonds exclude treasury securities held in treasury accounts with Jiko Securities, Inc. as explained under the “ Treasury Accounts” section.

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A Bond Account is a self-directed brokerage account with Public Investing. Deposits into this account are used to purchase 10 investment-grade and high-yield bonds. The Bond Account’s yield is the average, annualized yield to worst (YTW) across all ten bonds in the Bond Account, before fees. A bond’s yield is a function of its market price, which can fluctuate; therefore a bond’s YTW is not “locked in” until the bond is purchased, and your yield at time of purchase may be different from the yield shown here. The “locked in” YTW is not guaranteed; you may receive less than the YTW of the bonds in the Bond Account if you sell any of the bonds before maturity or if the issuer defaults on the bond. Public Investing charges a markup on each bond trade. See our Fee Schedule.

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Fractional Bonds also carry additional risks including that they are only available on Public and cannot be transferred to other brokerages. Read more about the risks associated with fixed income and fractional bonds. See Bond Account Disclosures to learn more.

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Cryptocurrency.
Cryptocurrency trading, execution, and custody services are provided by Bakkt Crypto Solutions, LLC (NMLS ID 1828849) (“Bakkt”). Cryptocurrency is highly speculative, involves a high degree of risk, and has the potential for loss of the entire amount of an investment. Cryptocurrencies offered by Bakkt are not securities and are not FDIC insured or protected by SIPC. Your cryptocurrency assets are held in your Bakkt account. Bakkt is a licensed virtual currency business by the New York State Department of Financial Services and a licensed money transmitter, but is not a registered broker-dealer or a FINRA member. Your Bakkt Crypto account is separate from your brokerage account with Public Investing, which holds US-listed stocks and ETFs. Please review the Risk Disclosures before trading.

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Investing services in treasury accounts offering 6 month US Treasury Bills on the Public platform are through Jiko Securities, Inc. (“JSI”), a registered broker-dealer and member of FINRA & SIPC. See JSI’s FINRA BrokerCheck and Form CRS for further information. JSI uses funds from your Treasury Account to purchase T-bills in increments of $100 “par value” (the T-bill’s value at maturity). T-bills are purchased at a discount to the par value and the T-bill’s yield represents the difference in price between the “par value” and the “discount price.” Aggregate funds in your Treasury Account in excess of the T-bill purchases will remain in your Treasury Account as cash. The value of T-bills fluctuate and investors may receive more or less than their original investments if sold prior to maturity. T-bills are subject to price change and availability - yield is subject to change. Past performance is not indicative of future performance. Investments in T-bills involve a variety of risks, including credit risk, interest rate risk, and liquidity risk. As a general rule, the price of a T-bills moves inversely to changes in interest rates. Although T-bills are considered safer than many other financial instruments, you could lose all or a part of your investment. See Jiko U.S. Treasuries Risk Disclosures for further details.

Investments in T-bills: Not FDIC Insured; No Bank Guarantee; May Lose Value.

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