Global explainer
Zero-Commission Stock Trades: What Costs Can Still Reach You?
A zero stock-trading commission removes one visible charge, but spreads, execution quality, account fees and broker routing incentives can still affect your result.
Stocks
Read company filings alongside price moves. Check the reporting period, currency and whether a gain includes dividends. A rising index does not mean every company is doing well.
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Brokerage Account Transfers: Can You Move Stocks Without Selling Them?
Most whole shares can move between compatible brokerage accounts without a sale, but fractional shares, unsupported products, margin debt and missing records can complicate the transfer.
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Brokerage Cash Sweeps: Is Idle Cash Protected by FDIC or SIPC?
Idle brokerage cash can fall under FDIC insurance, SIPC protection or neither label in the way you expect. Learn how to identify the sweep vehicle and test the real coverage limit.
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Margin Calls: Can Your Broker Sell Stock Without Asking You First?
A broker can often liquidate margin-account assets without asking first. Learn what triggers a call, why a deadline may not protect you and how to build a practical cushion.
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Covered and Noncovered Shares: Why Is Cost Basis Missing From Form 1099-B?
A blank cost-basis box can mean shares are noncovered, not that their basis is zero. Learn what the label changes, which records to rebuild and what to verify before filing.
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ADR Fees: Why Can a Charge Appear Without Selling Your Foreign Stock?
ADR custody fees can reach an account through a dividend deduction or broker charge even without a trade. Learn where to find the terms and total cost.
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SIPC Protection: Does It Cover Stock Losses When a Brokerage Fails?
SIPC can replace missing securities and cash when a member broker fails, but it does not insure market losses. Learn the limits, account rules and records to check.
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Fractional Shares: Can You Vote Them or Transfer Them to Another Broker?
Fractional shares can provide proportional dividends, but voting, order handling and transfers depend on the broker. Learn what to check before buying or moving an account.
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Direct Registration: Do You Still Own Stock Outside a Brokerage Account?
Direct registration records stock in your name with the issuer's transfer agent. Learn what changes for trading, statements, voting, dividends and fees.
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Stock Lending: Can You Still Vote and Receive Dividends While Shares Are on Loan?
Loaned shares usually transfer voting rights and replace dividends with substitute payments. Learn what to check before joining a stock-lending program.
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Proxy Voting: Can You Sell Shares After the Record Date and Still Vote?
Selling after a proxy record date may not remove that meeting vote. Learn how settlement, street-name accounts, deadlines and broker non-votes affect it.
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Stock Spin-Offs: Do You Automatically Receive Shares in the New Company?
Stock spin-off shares are often distributed automatically, but eligibility, trading dates, fractions, taxes and broker timing depend on the announced terms.
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Stock Delisting: Do Your Shares Disappear When a Company Leaves an Exchange?
A stock delisting does not automatically erase your shares. Learn what changes, when OTC trading may continue and which notices and broker records to check.
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Reverse Stock Splits: What Happens to Shares That Do Not Divide Evenly?
A reverse stock split can leave a fractional share. Learn how the ratio works, when cash in lieu may replace the fraction and which records to check.
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Stock Tender Offers: What Happens If You Do Nothing?
A stock tender offer is optional, but ignoring it has consequences. Learn what happens to untendered shares, proration, deadlines and the terms to check.
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Day vs GTC Stock Orders: When Does an Unfilled Order Expire?
Day and GTC instructions control how long a stock order remains active. Learn the session boundary, broker limits and review checks before choosing one.
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Stock Rights Offerings: What Happens If You Do Nothing?
A rights offering gives existing holders a limited choice to buy more shares. Learn what nonparticipation can mean for ownership, value and deadlines.
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Stock Secondary Offerings: Does Every Share Sale Raise Cash for the Company?
A stock offering may sell new company shares, existing holders’ shares or both. Learn who receives the cash, when dilution occurs and what to read.
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Stock Trading Halts: What Happens to Your Open Order?
Learn why a stock can stop trading, what may happen to an open order during the halt, how reopening changes execution risk, and what to check before acting.
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Stock Order Partial Fills: Why Did Only Some Shares Execute?
Learn why a stock order can fill only partly, how liquidity, limit prices, queue position and order conditions affect the remaining shares, and what to check next.
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Stock Sale Proceeds: Why Can Cash Appear Before You Can Withdraw It?
Learn how trade date, T+1 settlement, settled cash and withdrawal processing differ after a U.S. stock sale, with a practical cash-account checklist.
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ETF Prices vs NAV: Why Can the Quote Trade Above or Below the Fund’s Holdings?
Learn why an ETF can trade at a premium or discount to NAV, how the creation process can narrow the gap, and what to check before an order.
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Ex-Dividend Dates: Why Can a Stock Price Fall Before the Dividend Arrives?
Learn why a stock can fall on its ex-dividend date, who receives the next cash payment, and how to compare price return with total return.
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Stock Stop-Limit Orders: Why Can Your Shares Remain Unsold?
Understand why a sell stop-limit order can remain unfilled after its trigger, how a price gap affects it, and which broker-ticket details to check.
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Free Cash Flow: Why Can a Profitable Company Still Run Short of Cash?
See why profit and cash can diverge, how to calculate a common free cash flow measure, and which filing lines to check before judging a stock.
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Stock Buyback Authorizations: How Much Has the Company Actually Repurchased?
Separate a stock buyback authorization from completed repurchases, then check cash spent, shares bought, net share count and what remains unused.
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Stock Price vs Market Cap: Does a $5 Share Mean the Company Is Cheap?
Learn why a low share price does not make a stock cheap, calculate market capitalization, and check the share-count traps before comparing companies.
Global explainer
Stock Bid–Ask Spread: Check the Cost Before You Trade
See how a bid–ask spread affects trading costs, work through a clear 100-share example and compare the price control of market and limit orders.
Global explainer
Diluted EPS Is a Warning Label, Not a Prediction
Diluted EPS shows how profit per share could change if potential shares become ordinary shares. Learn what the gap means, what it omits and how to check it.
Free calculators · USD
Illustrative estimates only. Taxes, insurance, exchange rates and lender conditions are not included. Use one currency throughout. Interest is fixed, compounded monthly, with payments at month-end.
Read a stock move in three steps
Start with what you actually own.
A company share, a fund holding that share and a token whose price tracks it can carry different rights. Write down the instrument's legal name, issuer and what its terms say about ownership, distributions and redemption. A familiar company name in the product description is not enough to establish shareholder rights. Use our stock-token explainer below when the product's form is unclear; the distinction comes before comparing returns.
Separate the price move from money you keep.
Take a hypothetical purchase of ten shares at 100 currency units each, with a five-unit purchase fee. The initial outlay is 1,005. Selling at 110 brings 1,100 before a five-unit selling fee, leaving 1,095. The gain is 90 and the return on the original outlay is about 8.96%, before any taxes. The share price rose 10%, but the net result is different. These are invented arithmetic inputs, not market quotes or a forecast. A dividend, currency conversion or another charge would need its own entry.
Check the denominator behind a per-share headline.
Profit and profit per share answer different questions. In a hypothetical example, profit of one million spread over one million shares is one unit per share. With the same profit and 1.25 million shares, it is 0.80. This illustrates why share count matters; it is not the full accounting method for diluted earnings per share. Read the reporting period, weighted share count and notes together, then use the diluted-EPS guide to understand what a potential-share calculation does and does not mean.
Use the calculator for the question it actually answers.
The simple return calculator below compares an initial amount with a final value. It does not research a company's accounts, forecast its price or add fees automatically. For additional purchases and fees, use the trade simulator and keep every input in one currency. Compare results over matching periods. The SEC's Investor.gov guidance explains that fees reduce the amount left earning a return; our numbers above are our own illustrative calculation. Official background checked September 22, 2026: Investor.gov, How Fees and Expenses Affect Your Investment Portfolio.