ETFap: Free Tools for SPX, SPY, QQQ and Crypto ETF Traders

Free, math-based tools for SPX, SPY, QQQ and crypto ETF traders. Advantage play means playing with an edge: clear rules and real data, not guesses.

Explore the tools Crypto ETF calculator

Our tools

Crypto ETF CalculatorSee how much bitcoin or ether your ETF shares hold, for every US spot crypto ETF.Crypto ETF Fee ComparisonWhich bitcoin and ether ETFs cost least, and how much coin the fee takes over 10 years.The Buy the Dip AppA ten-step plan to buy SPY, QQQ or IBIT on the way down, set from real bear markets.SPX DeskShould you sell SPX put credit spreads today? 1, 7 and 45 DTE reads, the FOMC check and the 7DTE trade with its backtest.The Slingshot TradeA ratio risk reversal timer for any stock: a daily call on when to sell the put, fund the call, or take the 50%.Open Lines: Expected Move CalculatorThe expected move for SPY, QQQ and SPX at 0, 1, 7 and 45 DTE, closing odds by level, and the odds for any short strike.Options Trade IdeasIBIT put and put spread ideas with live strikes and their POP, POT and P50, updated daily.Covered Call & PMCC TrackerCovered call and PMCC ledger with net cost basis and rolls, plus today’s SPY, QQQ, IBIT and SPX short-call strikes with POP, POT and P50.QQQ Earnings ChecklistIs QQQ a good buy by its earnings? The top 15 holdings scored on EPS trend, P/E vs growth and IV Rank, weighted into one QQQ score.

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₿ Need a break from the charts? Play Bitcoin Catcher, our free browser game: catch falling bitcoin, beat your high score and challenge a friend. Just for fun, not investment advice.

BTC $77,411ETH $2,267SPY $766.81 +1.65% IVR 18QQQ $691.95 +0.97% IVR 48IVR = 1-year IV Rank (SPY from VIX, QQQ from VXN). Prices delayed.

Why ETFap

Data from the source. Fund numbers come straight from the issuers, each with its date, and we show how every one was checked.
Math you can check. Every tool shows its formula and a worked example.
Free, no sign-up. No account, no email, nothing to install.

More tools are on the way. Suggest one.

FAQ

What is ETFap?

ETFap stands for ETF Advantage Play. It is a free set of calculators and worked examples for people who trade options and ETFs: SPX, SPY, QQQ and spot crypto ETFs. An advantage play means playing with an edge, using rules and real numbers instead of guesses.

Is ETFap free? Do I need an account?

Yes, it is free, and no, there is no sign-up. The tools run in your browser, and anything you save (like Buy the Dip fills or your covered call ledger) stays on your device.

Where does the data come from?

Crypto ETF holdings come straight from each issuer’s website, and every figure shows its as-of date (latest: Nov 3, 2026). Live coin prices come from Coinbase, stock quotes from Yahoo Finance. The sources page lists every link.

Is this financial advice?

No. ETFap is education: it shows the math so you can check it. Always confirm numbers with the fund issuer and decide for yourself.

Education only, not financial advice. This site is not affiliated with any fund issuer. Coins-per-share figures come from issuer websites and can be delayed or wrong, so check the issuer’s page before you rely on a number. Crypto is very volatile and you can lose money.