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Academy

What Is Dollar-Cost Averaging into U.S. Stock Indexes? Principles, Risks, and How to Do It

DCA isn't a sure win, but it's the most suitable way for ordinary people to invest. A plain-English guide to DCA's principles, risks, and how to do it, with data from the SEC and Vanguard.

Academy

Index Funds vs. Active Funds: How Should Ordinary Investors Choose?

Index funds have low fees and a higher long-term win rate; active funds struggle to beat the market. The data shows which one ordinary people should choose.

Academy

Leveraged ETF TQQQ: What Is It? Can You Hold It Long Term?

Leveraged ETFs only promise daily 3x returns. Holding them long term can lead to returns that diverge due to daily reset and volatility decay, and they can even lose money while the underlying index is flat.

Academy

US Stock Sector ETFs: Semiconductors, AI, and Energy ETFs Explained

How to choose sector ETFs? Semiconductors, AI, and energy ETFs explained in one go, from GICS to thematic ETFs, helping you avoid concentration traps.

Academy

SPY vs VOO vs VTI: Fees, Structure, and How to Choose

SPY, VOO, and VTI may look similar, but their structure, fees, and holdings are quite different. This article explains the differences to help you choose the right ETF.

Academy

What Are Nasdaq-100 and QQQ? A Detailed Guide to the Index vs. ETF Difference

Nasdaq-100 is an index, QQQ is an ETF—they're not the same. Understand the difference to choose the right tool and avoid overpaying or buying the wrong thing.

Academy

How to Buy the S&P 500: A Guide to Index Funds and ETFs

How to buy the S&P 500? First understand what it is, then choose the right index fund or ETF, watch the expense ratio, and invest regularly over the long term.

Academy

What Is an ETF? Differences and Risks vs. Stocks and Mutual Funds

What is an ETF? A basket of assets packaged into shares, traded like a stock. This article explains the essence, price mechanism, types, fees, and risks of ETFs in plain English.

Academy

What Are 0DTE Options? A Detailed Look at the Mechanics, Risks, and Examples

0DTE options are same-day expiry options that are cheap but extremely risky and can amplify market volatility. This article explains the mechanics, risks, and settlement differences in plain English.

Academy

What Is Implied Volatility (IV)? Why Options Get Pricier Before Earnings

Options get pricier before earnings not because of a bullish outlook, but because implied volatility (IV) rises. This article explains IV, IV Crush, and Vega in plain English to help you avoid one of the sneakiest traps in options trading.

Academy

Option Buyer vs. Seller: Who Takes on More Risk? A Clear Breakdown of Odds and Risk

Who takes on more risk between option buyers and sellers? Buyers risk only the premium, while naked sellers face unlimited risk, but covered seller strategies keep risk manageable.

Academy

Selling Put Options in US Stocks: What It Is, How It Works, Risks, and Examples

Selling a put = collect premium now, buy stock at strike price if it falls. Profit is capped, but risk can be large. A must-read for beginners!