Illumina ($ILMN ) Gains +18.6% Over 30 Days on S&P 500 Addition and Clinical Demand (See the latest news for any ticker on Tickeron.) Illumina (ILMN) shares rose roughly 18.6% over the 30 days through late September 2026, advancing from about $227.69 to $270.00. The move was fueled by the company's addition to the S&P 500 index, a series of analyst upgrades, and sustained clinical sequencing demand. Over the trailing three months, the stock gained approximately 52%, extending a broad multi-month uptrend. $BRKR $AZTA $BIO $QRTX $TMO