Intrepid Potash Inc IPI Inches Higher Approaches Key Technical Resistance at 4176 Rentokil Initial RTO Slips 109 as Stock Holds Above Key Support Resistance at 3279 in Sight Heartbeam Inc Warrant BEATW Slumps 23 A Tight Trading Range at 007 Ameren Corporation AEE Holds Steady Near Support Amid Modest Decline