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Investment scenarios, practical guides and comparative analysis built with real market data.

Portfolio Diversification: Different Risks, Not More Assets

Ten holdings can fall together. Build meaningful diversification by examining risk drivers, concentration, time horizon and a rebalancing rule.

August 3, 20268 min read

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16 articles

Guide6 min read

Investment Horizon and Drawdowns: Measuring the Path, Not Just the Finish

Calculate a 40% drawdown, the 66.67% recovery it requires, and distinguish genuine recovery from new deposits and incomplete observation windows.

July 27, 2026

Concept6 min read

How Exchange Rates Change Investment Returns

Follow a TRY-to-USD worked example, separate asset and currency returns, and see why each DCA contribution needs its own conversion.

July 20, 2026

Concept6 min read

How Fees Quietly Reduce DCA Returns

How commissions, spread, fund expenses and tax accumulate across small recurring investments.

July 13, 2026

Guide5 min read

TRY 1,000 a Month: Comparing BIST, Gold and Dollars Fairly

Follow equal lira contributions through three transparent hypothetical scenarios, with currency conversion, instrument boundaries and purchasing-power limits.

July 6, 2026

Concept5 min read

S&P 500 Price Return vs Total Return: What Dividends Change

A worked dividend-reinvestment example explains price, gross total and net total returns, ETF differences and fair calculator comparisons.

June 29, 2026

Comparison6 min read

Bitcoin vs. Gold: How to Compare Ten Years Fairly

Total return is not enough. Compare Bitcoin and gold over identical dates using drawdown, liquidity, custody and consistent price definitions.

June 22, 2026

Concept6 min read

Nominal vs. Real Return: What Is Left After Inflation?

A portfolio can grow while purchasing power falls. Learn the correct real-return formula and the most common inflation mistakes.

June 15, 2026

Historical Analysis14 min read

$500/Month Through the 2022 Market Crash: The Full Story

A reproducible comparison of investing $500 monthly in Bitcoin, the S&P 500 and Apple from March 2022 through January 2025.

March 8, 2025

What if5 min read

A Coffee Budget in the S&P 500: Calculate Contributions Before Returns

Turn a hypothetical $5 daily budget into a reproducible contribution schedule, account for market holidays and test the effect of small-trade fees.

March 5, 2025

Analysis5 min read

DCA Before the 2024 Bitcoin Halving: A 12-Purchase Calculation

Audit twelve monthly $100 purchases from April 2023 to March 2024, valued on 20 April 2024, without confusing the outcome with proven halving causation.

March 1, 2025

What if5 min read

$1,000 on 23 March 2020: Comparing Five Price Series

Compare Bitcoin, Tesla, Apple, the S&P 500 and a gold-futures proxy on fixed dates, with visible prices and explicit dividend and instrument limits.

February 24, 2025

What if5 min read

$100 in Bitcoin in 2015: A Reproducible Historical Calculation

Calculate a $100 purchase at the 2 January 2015 close, valued on 24 February 2025, with explicit quantity, costs and custody assumptions.

February 10, 2025

Guide5 min read

Regular Investing in the BIST 100: Contributions, Index Levels and Real Returns

Build a transparent BIST 100 contribution model and distinguish index exposure, market-day rules, fund costs and nominal lira gains.

February 3, 2025

Concept6 min read

DCA vs. Lump Sum: What the Data Actually Says

How should cash already available be compared when invested immediately or phased in temporarily? We read Vanguard's evidence with its limits intact.

January 28, 2025

Concept7 min read

What Is Dollar Cost Averaging (DCA) and How Does It Work?

A practical guide to fixed-amount periodic investing, the unit-cost math, a worked example and the risks dollar-cost averaging cannot remove.

January 15, 2025

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