Whether you are making your first investment or adding Capital One to an existing portfolio, Grow is designed to keep the process simple. Instead of juggling separate accounts for funding, saving, and investing, you can deposit in the currency you already use, buy Capital One in a few taps, hold it alongside your other assets, and sell when your strategy calls for it—all from one app.
Capital One is a leading American financial services company that specializes in credit cards, auto loans, and retail banking. Founded in 1994, the firm is a pioneer in using data analytics and technology to offer personalized financial products to over 100 million customers. Following its landmark acquisition of Discover Financial Services in 2025, it has become the largest credit card issuer in the United States by balances. This guide walks through each step so you know exactly what to expect before you place your first order.
In this guide you'll learn
- How to deposit funds into Grow in your preferred currency.
- How to buy Capital One directly from your balance—no matter which currency you funded with.
- How to hold Capital One in your portfolio and track your position over time.
- How to sell Capital One when you are ready and move proceeds back to cash.
Step 1: Deposit Funds into Grow
Before you can buy Capital One, you need cash in your Grow account. Grow supports more than 20 currencies, so most users can deposit in the currency they already earn and spend—whether that is USD, EUR, GBP, MXN, BRL, or another supported option.
To get started, download Grow and create your account. Verification is designed to be fast, so you can move from sign-up to funding without a long waiting period. Once your account is ready, choose deposit and pick the funding method available in your country. Depending on where you live, that may include local bank transfer, card, or supported crypto.
Grow converts and holds balances in the currencies you deposit. That matters because you are not forced into a single funding currency before you invest. If you deposit euros, you can keep euros on hand and still buy dollar-denominated stocks like Capital One when you are ready—the app handles conversion at the point of trade. The same applies across Grow's supported currencies: fund in what you have, invest in what you want.
Uninvested cash on Grow can also earn competitive yield on eligible balances where supported, so money waiting for your next purchase is not necessarily sitting idle. Learn more about Earn to see which currencies currently qualify.
Step 2: Buy Capital One from Your Funds
Once your account is funded, buying Capital One is straightforward. Search for COF or open Capital One from the Stocks catalog, enter the dollar amount you want to invest, and review the order before confirming.
Grow supports fractional investing from as little as $1 where available, which means you do not need to save up for a full unit of Capital One before getting exposure. That is especially helpful for higher-priced stocks where a single unit might otherwise be out of reach.
Because Grow routes orders across hundreds of venues, you benefit from smart execution designed to find competitive pricing. Pricing is transparent—you see what you are buying before you confirm—and settlement is fast compared with traditional brokerage workflows that can take days to complete.
You can fund in one currency and buy Capital One in another without opening separate accounts or managing manual FX transfers yourself. Grow handles the conversion at trade time so you can focus on building the portfolio you want rather than operational details.
Step 3: Hold Capital One in Your Portfolio
After your purchase settles, Capital One appears in your Grow portfolio alongside any other assets you hold. From there you can track your position, view performance over time, and see how Capital One contributes to your overall allocation.
Holding on Grow means your investments live in the same place as your cash balances. You do not need a separate app to check your stock holdings or wonder whether funds are available for your next trade. Your portfolio, cash, and transaction history stay connected in one view.
Many investors use Capital One as part of a broader strategy—pairing individual stocks with ETFs, keeping some exposure in cash or stablecoins, or balancing growth assets with lower-volatility holdings. Grow makes it easy to manage that mix without transferring between institutions.
Step 4: Sell Capital One When You Want
When you decide to take profits, rebalance, or simply move on from the position, selling Capital One on Grow follows the same simple flow as buying. Open the asset in your portfolio, choose sell, enter the amount you want to convert back to cash, and confirm the order.
Proceeds return to your Grow balance in the currency you select, ready to withdraw to your bank, hold for a future purchase, or deploy into another asset. There is no requirement to move funds through a separate settlement account or wait an extended period for trades to clear.
You can sell part of a position or the entire holding, depending on your goal. Fractional support works in both directions—just as you can buy a portion of Capital One, you can sell a portion when you want to reduce exposure without exiting completely.
Trading Hours for Capital One
Trade Monday through Friday during the following sessions (US/Eastern): Pre-market: 4:00 AM–9:30 AM ET; Regular: 9:30 AM–4:00 PM ET; After-hours: 4:00 PM–8:00 PM ET; Overnight: 8:00 PM–4:00 AM ET (next day). US market holidays may affect availability.
| Session | Hours (ET) |
|---|---|
| Pre-market | 4:00 AM–9:30 AM ET |
| Regular | 9:30 AM–4:00 PM ET |
| After-hours | 4:00 PM–8:00 PM ET |
| Overnight | 8:00 PM–4:00 AM ET (next day) |
Plan your buy and sell orders around these windows. If you submit an order outside available hours, Grow will let you know when trading resumes for Capital One.
Why Buy Capital One on Grow?
Grow combines funding, earning, and investing in one account. That matters when you want to buy Capital One without the friction of legacy platforms: no separate FX account, no confusing fee structures, and no multi-day settlement delays for everyday trades.
You can deposit in your local currency, buy Capital One with as little as $1 where supported, hold it next to the rest of your portfolio, and sell when your plan changes—all with transparent pricing and fast settlement.
Download Grow today to fund your account and buy Capital One in minutes.
Frequently Asked Questions About Buying Capital One
Can I buy Capital One with my local currency on Grow?
Yes. Grow supports deposits in more than 20 currencies, so you can fund your account in the currency you already use and buy Capital One without managing a separate USD account first. You can also fund with supported crypto if that is more convenient for you.
What is the minimum amount needed to buy Capital One?
Grow supports fractional investing from as little as $1 where available, so you do not need to buy a full share or unit of Capital One to get started. Enter the dollar amount you want to invest and Grow handles the rest.
When can I trade Capital One on Grow?
Capital One follows scheduled trading hours. Trade Monday through Friday during the following sessions (US/Eastern): Pre-market: 4:00 AM–9:30 AM ET; Regular: 9:30 AM–4:00 PM ET; After-hours: 4:00 PM–8:00 PM ET; Overnight: 8:00 PM–4:00 AM ET (next day). US market holidays may affect availability. Check the trading hours section on this page for the full schedule before placing an order.
How do I sell Capital One after I buy it?
Open Capital One in your Grow portfolio, choose sell, enter the amount you want to convert back to cash, and confirm. Proceeds return to your Grow balance in the currency you select, ready to withdraw or reinvest.
Is Capital One the right stock for me?
Every investment carries risk, and past performance does not guarantee future results. Review the asset details on Grow, consider how Capital One fits your goals and time horizon, and only invest what you can afford to lose. This guide explains how to buy and sell on Grow—it is not personal financial advice.
