Investing guides
Background to get more out of 10-eok's backtests.
What Is an ETF? (Beginner's Guide)
What an ETF (exchange-traded fund) is, how it differs from individual stocks and mutual funds, and the costs and risks every beginner should know.
What Is QLD?
QLD is a leveraged ETF that tracks 2x the daily return of the Nasdaq-100 — its mechanics, fit with DCA, and risks, explained from the ground up.
The Logic of Dollar-Cost Averaging (DCA)
Why buying a fixed amount every month — dollar-cost averaging (DCA) — is such an easy way to invest, and its strengths and limits.
DCA vs. Lump Sum
Invest a lump sum all at once, or spread it out? The difference between DCA and lump-sum investing, which one wins on average, and how to choose for your situation.
The Risks of Leveraged ETFs
Losses as large as the 2x or 3x gains, plus the hidden trap known as volatility decay — explained with real numbers.
Compound Interest and the Rule of 72
How compound interest lets your money make more money, illustrated with the Rule of 72 — a mental-math shortcut for how long it takes your principal to double.
Nasdaq-100 vs. S&P 500
Comparing the composition, personality, and volatility of the Nasdaq-100 and S&P 500 — the indexes behind QQQ and SPY.
DCA backtests by ETF
QLD DCA backtest
How long to $1M investing $700/month — from real historical data.
TQQQ DCA backtest
How long to $1M investing $700/month — from real historical data.
QQQ DCA backtest
How long to $1M investing $700/month — from real historical data.
SPY DCA backtest
How long to $1M investing $700/month — from real historical data.
VOO DCA backtest
How long to $1M investing $700/month — from real historical data.
SCHD DCA backtest
How long to $1M investing $700/month — from real historical data.
VT DCA backtest
How long to $1M investing $700/month — from real historical data.
SOXX DCA backtest
How long to $1M investing $700/month — from real historical data.
VGT DCA backtest
How long to $1M investing $700/month — from real historical data.
VNQ DCA backtest
How long to $1M investing $700/month — from real historical data.
GLD DCA backtest
How long to $1M investing $700/month — from real historical data.
TLT DCA backtest
How long to $1M investing $700/month — from real historical data.
AGG DCA backtest
How long to $1M investing $700/month — from real historical data.
JEPI DCA backtest
How long to $1M investing $700/month — from real historical data.
JEPQ DCA backtest
How long to $1M investing $700/month — from real historical data.
These articles are for general information only, not investment advice or a solicitation.