Last week we met with Tom Reilly, president and CEO of ArcSight. Tom became CEO about 18 months ago when the stock price was just under $7.00 and underwater from the company's initial public offering. Over the next six weeks the stock price continued to plummet to $4.74. Since then and despite the recession Reilly has presided over a mercurial rise with the stock price surpassing $25 and the most recent quarter revenues growing to $46.1M from the prior year's $36.4M (27% increase). Although quarter to quarter sales dipped midyear 2009, quarterly revenue has grown from $32M to $46M in the past six quarters. What's more, the company has a market cap of $900M and $107M in cash putting the company as a potential buyer of adjacent products that can be sold to its customer base. As the market leader in the Security Event Management space Reilly doesn't want to be defined or limited by "security" events and instead prefers to define a broader category he calls ETRM — Enterprise Threats and Risk Monitoring. The nearest competitor seems to be EMC/RSA combining its recent acquisition of Archer (Jan 2010) with its earlier (9/06) acquisition of Network Intelligence to provide similar ETRM capability. Even though the SEM category is seeing more pressure as new log management entrants like Splunk join the fray Reilly doesn't see an expanding field as a problem as he keeps ArcSight focused on the value end of the business. With a successful 18 months behind him, a high market capitalization and a hundred million in the bank it will be interesting to watch Reilly's strategic moves as he builds out ArcSight's ETRM category. (We'll leave out the part that everyone likes Tom, one of the easiest guys to get along with in the valley and write that story for a subsequent issue.)