Proprietary traders may use various software tools and platforms to perform their data analysis, such as trading algorithms, data visualization tools, and risk management software. They may also use machine learning and artificial intelligence techniques to analyze large volumes of data and make more accurate predictions about future market movements. It is important to note that proprietary traders are often working with confidential or proprietary data, such as trading strategies and proprietary algorithms, which they may not disclose to others. As such, proprietary data analysis in prop trading is often closely guarded and protected. Additionally, prop traders may be subject to regulatory and compliance requirements that dictate how they handle and analyze data.

Proprietary data can come from a variety of sources, including customer transaction data, social media data, website analytics, and market research data. Companies and organizations may invest significant resources into collecting, storing, and analyzing this data to gain a competitive advantage in their industry. Proprietary data analysis can involve a range of techniques, such as data mining, machine learning, statistical analysis, and visualization. The results of this analysis can be used to inform marketing strategies, product development, and other key business decisions. However, it is important to note that proprietary data analysis may be subject to legal and ethical considerations, such as data privacy regulations and intellectual property rights.

Some of the most commonly used  tools include:

1. Trading Platforms: Proprietary traders use specialized trading platforms that provide real-time market data, order execution, and risk management tools. These platforms often offer customizable charts and technical indicators that allow traders to visualize market trends and patterns.
2. Market Data Feeds: Prop traders subscribe to market data feeds that provide real-time pricing information and news updates. These feeds can include market data from exchanges, news wires, and other sources. Proprietary traders rely heavily on market data feeds to stay up to date with real-time pricing information, news, and other market data that may affect their trading decisions. Market data feeds provide traders with a wealth of information about market conditions, including pricing data, order book data, news and analysis, and other relevant data points.
3. Data Visualization Tools: Prop traders use data visualization tools to help them interpret complex data sets and identify patterns and trends. These tools may include charting software, heat maps, and other visualizations that help traders spot potential trading opportunities.
4. Algorithmic Trading Tools: Many prop traders use algorithmic trading tools to automate their trading strategies. These tools use complex algorithms to analyze market data and execute trades automatically based on predefined rules. Some of the most commonly used algorithmic trading tools by prop traders include:
   1. Trading Algorithms: Prop traders use trading algorithms to automate their trading strategies. Trading algorithms are computer programs that analyze market data and execute trades based on predefined rules. These algorithms may be simple or complex, depending on the trader’s strategy.
   2. Machine Learning Tools: Prop traders use machine learning tools to analyze large amounts of data and identify patterns that may indicate potential trading opportunities. Machine learning algorithms can be used to make more accurate predictions about future market movements.
   3. High-Frequency Trading (HFT) Tools: HFT tools are used by prop traders to execute trades at high speeds and with high precision. HFT tools can analyze market data and execute trades in fractions of a second, allowing traders to take advantage of small price movements in the market.
   4. Backtesting Tools: Prop traders use backtesting tools to test their trading strategies using historical market data. Backtesting allows traders to assess the performance of their trading strategies over time and make adjustments as needed.
5. Risk Management Tools: Prop traders use risk management tools to monitor their positions and control their exposure to market risk. These tools may include stop-loss orders, position-sizing algorithms, and other risk management techniques.

It’s worth noting that the specific tools and software used by prop traders may vary depending on their trading style, the markets they trade in, and their individual preferences.