How It Works

The Strategy: Bid-Ask Spread Scalping

Options markets experience temporary periods where bid-ask spreads widen beyond normal levels. When a spread is wide enough, there is room to place a buy limit above the bid and a sell limit below the ask — capturing a portion of that spread as profit if both orders fill.

What Are Bid-Ask Spreads?

Every option has two prices: the bid (what buyers will pay) and the ask (what sellers want). The difference is the spread. In liquid, high-volume options, spreads tend to be tight. In less liquid contracts — particularly mid-cap options — spreads can widen significantly. When they do, a trader can place a buy limit inside the spread (above the bid but below the ask) and simultaneously a sell limit at a higher price still inside the spread. If both fill, the difference is the profit. SpreadSearch identifies precisely these situations.

Why Do Spreads Widen?

Spreads widen due to temporary liquidity imbalances, market maker repositioning, news events, or low trading volume. Mid-cap options often experience wider spreads than mega-cap stocks, creating more opportunities. SpreadSearch focuses specifically on these mid-cap opportunities where spreads are most pronounced.

Three Core Pillars

SpreadSearch is built on a foundation that goes beyond pure profit-seeking:

1

Trading

Find and execute profitable bid-ask spread opportunities. Our platform scans multiple tickers, expirations, and strikes to identify the best setups.

2

Market Side Effect

Placing limit orders inside a wide spread — buying above the bid, selling below the ask — naturally helps narrow it. A side effect worth noting, not the primary goal.

3

Research

Study spread formation patterns by exporting scan results to CSV for analysis in your own tools.

How SpreadSearch Works

1. Configure Your Scan

Select the tickers you want to scan — mid-cap options typically show wider spreads than mega-caps. Choose your expiration range and strike range, and set filters for minimum spread percentage, dollar amount, volume, and open interest. Volume and open interest matter: sufficient activity on both sides is what makes it realistic for both your buy and sell limit orders to fill.

2. Scan Options Chains

SpreadSearch connects to your Interactive Brokers account to scan options chains in real-time. It analyzes bid-ask spreads across all specified parameters and calculates full Greeks (Delta, Gamma, Theta, Vega, IV) for each opportunity.

3. Analyze Results

Results are displayed in a table showing spread percentage, dollar spread, volume, open interest, and all Greeks. Sort and filter to find opportunities matching your criteria. Set up alerts to be notified when spreads exceed your thresholds.

4. Execute in Your Broker

Place your buy limit inside the spread, then immediately attach a sell limit at your target price. SpreadSearch never touches your money or executes trades — we provide analysis, you control execution. This keeps the platform regulatory compliant and gives you full control.

A note on sizing: pay attention to the ask-side depth. If only 1–5 contracts are available at the ask, a large order won't fully fill at your limit price and may move the market against you. Size your orders in line with available liquidity — the bid and ask sizes shown in the results table are your guide.

Who Is This For?

Active Individual Traders

This strategy is naturally sized for individual traders operating with small to medium positions — typically 1 to 5 contracts per trade. The ask side in mid-cap options is often thin, which means larger orders risk partial fills or moving the market against you before both legs complete. That's not a limitation of SpreadSearch — it's a characteristic of the market segment it targets.

It is also, notably, a structural advantage. Institutional traders cannot use this strategy at scale: the operational overhead of managing dozens of small positions makes it unviable, and their size would move the market against them on entry and exit. Active individual traders have a genuine edge here that institutions simply don't have. SpreadSearch gives them the tools to identify and act on these opportunities systematically, rather than relying on manual scanning.

Technology

SpreadSearch is built on the following foundations:

Desktop Application

The desktop app connects directly to your local Interactive Brokers Gateway, ensuring fast, reliable access to real-time market data. All data stays on your computer—we never store or transmit your trading information.

Parallel Processing

Our scanning engine uses parallel processing to analyze multiple contracts simultaneously, reducing scan times from minutes to seconds. Typical scan: 10-40 seconds depending on configuration.

Real-Time Alerts

Configure alerts to monitor spreads continuously. Get email notifications when opportunities matching your criteria appear, so you never miss a trade.