About GhostGains

The Museum of Missed Gains

What is GhostGains?

GhostGains is an entertainment-first, data-backed 'what-if' simulator that turns "What if?" into numbers. We visualize the opportunity costs of past investment decisions—the wealth that got away. This is not financial advice.

Cheaper than therapy, but hurts just as much.

How Ghost Profit Works

Ghost Profit is calculated by comparing historical asset prices to today's values. Here's the simple math:

  • Pick an asset (Bitcoin, Tesla, S&P 500, etc.) and a year
  • We use the opening price from January 1st of that year as your hypothetical entry point
  • We compare it to the current market price
  • Calculate the difference: (Current Price - Entry Price) × Investment Amount = Ghost Profit

This is a simplified simulation. Real investing involves fees, taxes, timing, and a million other variables we don't account for.

What You'll See

Our calculations make several assumptions:

  • Lump-sum investment assumption (we assume you invest a fixed amount at the start)
  • Entry price convention: We use the opening price from January 1st of the selected year
  • Current price convention: We use the latest price from our data sources (may have slight delays)
  • Does not include: trading fees, taxes, slippage, dividends, or other real-world costs

Ads & Sustainability

We may show ads to support the site. These ads help keep GhostGains free and accessible to everyone.

Data Sources & Accuracy

We use market data from various sources to calculate historical prices. However:

We make no guarantees about data accuracy. Historical prices may have gaps, rounding errors, or reflect different markets/exchanges. This is entertainment, not a financial database.

Our calculations are based on publicly available market data and may not reflect all trading conditions or fees.

Why GhostGains Exists

Everyone has that one investment they wish they'd made. GhostGains is your personal museum of missed gains—a place to:

  • Understand market volatility through historical "what-if" scenarios
  • Learn about long-term holding power (or lack thereof)
  • Get a reality check on opportunity costs
  • Have a laugh (or cry) at your financial regrets

We're not here to give financial advice. We're here to show you what could have been—and maybe help you make better decisions next time.

Ready to Explore?

Start calculating your regrets:

誰が、どのように書いているか

GhostGains は独立して運営されているサイトです。このセクションでは、誰が運営しているか、数字がどのように算出されるか、そして意図的に行わないことを説明します。

運営者について

GhostGains は小規模な独立チームが開発・運営しています。私たちはソフトウェア開発者であり、登録金融アドバイザーではありません。当サイトに掲載されるいかなる資産のポジションも保有しておらず、皆さまの売買判断から利益を得ることもありません。

記事の書き方

記事は自社で執筆し、公開前に編集しています。裏付けとなるデータを示せない数値は断定的に書きません。また、記事広告やアフィリエイト目的の推奨は掲載しません。

数字の出どころ

価格データは公開されている過去の市場データを使用しています。各シナリオはその年の始値・高値・安値を購入時点の選択肢とし、最新の価格を売却時点として計算します。リターンは名目値で、インフレ調整・税金・売買手数料・配当は含みません。

行わないこと

価格の予測、資産の推奨、購入の指示は行いません。当サイトのすべての数字はすでに起きたことを説明するものです。過去の実績は将来のリターンを予測しません。

訂正について

誤った数値や記述を見つけた場合はお知らせください。修正のうえ、変更内容を明記します。権威があるように見えることよりも、正確であることを重視します。

お問い合わせ →

Important Disclaimer

GhostGains is for entertainment and educational purposes only. We are not financial advisors. The calculations, scenarios, and data presented here should not be taken as investment advice. Always consult with a qualified financial professional before making investment decisions.