Strategy Battle: Lump Sum vs. DCA vs. Dip BuyingSummary This indicator is a "Strategy Battle" simulator designed to answer the ultimate investing question: Is it better to invest immediately, Dollar Cost Average (DCA), or wait for a market crash?
Unlike standard back-testers, this script simulates a realistic "High-Yield Savings" environment. It acknowledges that cash sitting on the sidelines is not dead money—it earns interest (e.g., 3-5%) while waiting for a buying opportunity. This levels the playing field and allows for a fair comparison between being fully invested vs. keeping "dry powder" for a crash.
The script compares 4 distinct strategies simultaneously on your chart, starting with a fresh yearly budget every January 1st.
he 4 Strategies
🔵 Option 1: Lump Sum (The "Set & Forget")
Takes the entire yearly budget and invests it all on the first trading day of the year.
Pros: Maximizes "time in the market."
Cons: vulnerable to buying at immediate peaks.
🟠 Option 2: DCA (The "Steady Earner")
Splits the yearly budget into 12 equal parts.
Invests monthly regardless of price.
The "Fairness" Twist: The money waiting to be spent sits in the cash pile and accumulates interest until it is deployed.
🟢 Option 3: Regression Sniper (The "Math Hunter")
Keeps the entire budget in cash (earning interest).
Watches a dynamic Linear Regression Channel.
Trigger: If the price drops below the channel, it goes "All-In," deploying all accumulated cash and interest immediately to buy the dip.
🔴 Option 4: Manual Sniper (The "Trend Hunter")
Keeps the entire budget in cash (earning interest).
Watches a User-Defined Growth Line (e.g., a straight line growing at 10% per year).
Trigger: If the price drops below this specific valuation line, it goes "All-In."
Detailed Settings & Options
💰 Money Settings
Yearly Budget ($): The amount of fresh capital injected into the simulation every January 1st.
Cash Interest Rate (%): The annual interest rate earned on uninvested cash (compounded monthly). This is crucial for accurately simulating the "opportunity cost" of holding cash.
⚙️ Sniper Settings (Option 3)
Channel Baseline Length: How far back the math looks to determine the "fair value" curve.
Vertical Shift (%): Move the buy zone up or down. Negative numbers (e.g., -5) make the strategy more conservative, waiting for deeper crashes.
Source: Defaults to Low to catch market wicks and intraday crashes.
📈 Manual Line Settings (Option 4)
Start Price ($): The valuation of the asset at the start of the simulation (Jan 1, Start Year).
Yearly Growth (%): The expected "fair" growth rate of the asset (e.g., S&P 500 average is ~10%).
Vertical Shift (%): Slide the manual line up or down to fine-tune your buy signal.
👁️ Visual Settings
Show Buy Price: Displays the exact dollar amount invested and the stock price at the moment of the buy on the chart labels.
Show Lump Sum Markers: Adds a Blue label at the start of every year to visualize the Lump Sum entry.
Show DCA Markers: Adds small Orange labels for every monthly buy.
Pine Script® indicator






















