Gemini Space Station, founded by the Winklevoss twins, is scheduled to go public today in what has been a week of multiple IPOs. (Photo by Astrid Stawiarz/Getty Images)Getty ImagesKey Takeaways Major Indices Reach Record Highs Amid Strong IPO Market Activity Inflation Data Supports Rate Cut Expectations From Federal Reserve September Expiration Approaches As Investors Monitor Potential VolatilityStocks are on pace for the fourth week of gains in the past five weeks. Three of the major averages, the S&P 500, ...