thinkorswim Overhauls Margin Display to Prioritize Real-Time Intraday Buying Power
According to the thinkorswim Learning Center, the change moves account-level risk metrics from accrued day-trade counting to real-time intraday positioning.
Garrett Croft·updated August 17, 2026

The thinkorswim desktop platform has replaced its legacy Pattern Day Trader day-trade count readout with two new fields — Intraday BP and Resulting Intraday BP — designed to surface real-time buying power and projected post-trade capacity within the active session. According to the thinkorswim Learning Center, the change moves account-level risk metrics from accrued day-trade counting to real-time intraday positioning. For active day traders running short-horizon equity setups, the update closes a visibility gap between static overnight capacity and live executable exposure.
Margin Interface Revision
The platform replaces the prior Pattern Day Trader count display with two intraday readouts:
- Intraday BP — current intraday buying power available for new entries during the active session.
- Resulting Intraday BP — projected account capacity after a hypothetical order, accounting for current intraday exposure.
Per the Learning Center, both fields are positioned to better reflect real-time account risk and trading capacity at the moment of order entry.
Practical Impact for Active Traders
For scalping workflows and intraday equity entries, real-time capacity visibility changes how order tickets respond to cumulative session exposure. Operational points based on the available disclosure:
- Both fields update against the live trading session rather than against accrued day-trade counts.
- Resulting Intraday BP previews capacity changes before an order is transmitted, supporting per-ticket sizing decisions.
- The revision sits at the margin display layer; account-level requirements continue to be governed by existing platform rules.
Verification Checklist
Traders using the platform should confirm the following before sizing the next session:
1. Platform build reflects the Intraday Margining display update.
2. Intraday BP field is visible on the account panel.
3. Resulting Intraday BP populates on a sample order entry.
4. The prior Pattern Day Trader count is no longer the primary margin readout.
5. Baseline overnight buying power reconciles against the previous session value.