LSI , showing nice relative strength vs SPY

NYSE:LSI   Life Storage, Inc
This caught my eye last night during some screening and is doing great vs the market today . Relative strength is very impressive and I like the consistency of its price action . However , this three day rally has been on declining volume , hinting at weakness ahead in short term or perhaps a nit of consolidation is required if current levels hold . Keeping my eye on it though , looks good so far .