Sei (SEI) has triggered a TD Sequential buy signal at the monthly open, indicating a potential bullish reversal after a previous sell signal at $0.35. The cryptocurrency's trading volume has surpassed $200 million, reflecting increased market activity. In the second quarter, Sei's DeFi ecosystem experienced a 68% growth, reaching a total value locked (TVL) of $609 million. These technical indicators and market dynamics suggest a possible breakout towards the $0.50 mark.