Market Overview

As the trading session closed on September 18, 2026, US index futures displayed notable strength, particularly in the Nasdaq-100 E-mini (NQ) and the S&P 500 E-mini (ES). Both indices saw significant movements, providing valuable insights for systematic traders focused on automated strategies.

NQ Performance Recap

The NQ finished the session at 29,955.00, marking a robust increase of 802.75 points or 2.75% from the prior settle of 29,152.25. During the day, the index experienced a high of 29,993.25 and a low of 29,648.00. This movement reflects the continuing volatility and potential for trend-following strategies to capitalize on larger price swings within the 5-day range of 28,763.75 to 29,993.25.

ES Performance Recap

The ES also showed strength, closing at 7,725.00, which is 100.00 points or 1.31% higher than its previous settle of 7,625.00. Throughout the session, the ES reached a high of 7,739.25 and dipped to a low of 7,675.00. The current 5-day range for the ES is between 7,509.25 and 7,739.25, indicating a healthy trading environment for both range and trend-following systems.

Notable Intraday Moves

As the session progressed, traders observed significant intraday moves that may have influenced trading strategies. The strong upward trends in both indices suggested that trend-following systems likely performed well during the early hours. Conversely, range-bound strategies may have struggled to find setups, particularly in the later part of the session when NQ and ES tested their respective highs.

What Worked for Systematic Traders

• Trend-Following Strategies: The upward momentum in both NQ and ES provided ample opportunities for trend-following traders to capitalize on breakouts.
• Scalping Opportunities: Short-term traders who executed quick trades within the intraday ranges likely found success given the volatility.

What Failed for Systematic Traders

• Range-Bound Strategies: With the strong upward movements, traders relying on range strategies may have faced challenges, particularly if their systems were not equipped to adapt to breakout conditions.
• Late Session Adjustments: As the indices approached their highs, some traders may have been caught on the wrong side of the market if they anticipated a reversal that did not materialize.

Preparation for the Next Session

Looking ahead, systematic traders should remain vigilant, as the market environment can quickly shift. Here are some key considerations:

• Monitor for potential pullbacks: Given the substantial gains, traders should be ready for possible retracements that could create new entry points.
• Adjust strategies: Consider adapting systems to cater to both trend-following and range-bound conditions, especially as market dynamics evolve.
• Stay updated: Keep an eye on the day's economic calendar for any data releases that could impact market sentiment.

In summary, September 18, 2026, showcased a strong performance in the NQ and ES futures, providing a wealth of data for systematic traders to analyze and adapt their strategies accordingly.