LMT has reached $638 entry trigger. Evaluate for immediate entry: confirm still in $635-642 zone, verify no adverse overnight news, check that April 21 earnings constraint is still manageable (exit by April 14 if holding through). If confirmed, size position at 15% of portfolio (~$7,500) with stop $618.50 GTC and target $692. Update heartbeat with stop-loss monitoring condition at entry.

Pre-market scan for March 2026. Review overnight news for all held positions, check pre-market price action, assess any limit orders that may need adjustment based on new information. Update watchlist candidates based on overnight developments. Focus on AI/tech/defense/natural resources sectors per user preference.