Scottrade Best-Execution Index (SBI)*
As part of Scottrade's regular and rigorous review of execution quality, we developed a proprietary algorithm – the Scottrade Best-Execution Index (SBI), for evaluating execution quality on a stock-by-stock basis over a period of time**. The SBI is an index value that is used to compare the execution quality of market centers utilized by Scottrade to other market centers. The SBI is intended to be an analytical tool for identifying under-performing market centers, not for identifying the best execution quality or guaranteeing an execution's time or price.
The SBI is composed of the following equally weighted components:
- Speed of Execution
- Price improvement percentage and cent improvement
- At the quote or better percentage
- Outside the quote percentage and cent disimprovement
- Effective spread
If a market center is under-performing, Scottrade will seek opportunities to route orders in those securities to a better performing market center.
**The SBI analyzes data from the most recent month and the previous two months.
*The Scottrade Best-Execution Index is a proprietary algorithm for evaluating execution quality on a stock-by-stock basis. The SBI is utilized by Scottrade to compare the execution quality of market centers utilized by Scottrade to other market centers in order to seek opportunities for better performing market centers. The SBI is intended to be an analytical tool for identifying under-performing market centers, not for identifying the best execution quality. The SBI does not imply or guarantee superior execution quality or an execution's time or price.
Information is based on analysis from Thomson Transaction Analytics. Thomson Transaction Analytics is not affiliated with Scottrade. The information does not include pre-market or after-hours orders or orders received during locked or crossed markets. It does include markets received during fast market conditions. Scottrade updates the information on a monthly basis.
You will always receive the price at which your order was executed at the trading center even though the execution report that Scottrade receives may be delayed (or “late”) from the trading center. A “late report” refers to when Scottrade does not receive a timely execution report from a trading center.
