Pre-market trend | Alphatec Holdings (ATEC) encounters selling pressure again below the zero axis on May 7, is the rebound of medical device stocks hindered?

Yesterday's closing, Alphatec Holdings (ATEC.US) continued its weak trend, with the daily MACD forming a bearish crossover signal below the zero axis. This signal usually indicates that the short-term corrective rally is difficult to sustain, and the bearish forces are regaining strength after a brief respite from the bulls. The trading volume was approximately $90.76 million, which is considered medium to high in the medical device sector, indicating a decent level of market activity for the stock, but the continued price weakness suggests that selling pressure is dominant. The stock price is operating below the short-term moving averages, and any rebound to the vicinity of the moving averages is met with resistance, leading to a retreat of the bullish front. On the news front, the medical device sector has recently lacked significant positive catalysts. ZTS experienced a drop of over 21% yesterday; although it belongs to the animal health sector rather than the orthopedic device track, the sharp fluctuations of major medical stocks often trigger sector-wide risk-averse sentiment. Additionally, the Federal Reserve's stance on maintaining high interest rates also indirectly pressures medical device companies—these growth-oriented companies often rely on substantial R&D investment and financing support, and a tight interest rate environment means rising capital costs and valuation pressure. Regarding employment market data, the initial jobless claims were lower than expected, indicating that the labor market remains resilient, making it difficult to open a rate cut window in the short term, which constrains the valuation recovery of growth-oriented medical companies. From a technical perspective, the secondary death cross below the MACD zero axis is a signal that reinforces the bearish pattern, with clear resistance from the moving averages. In terms of volume, the performance is stable, with neither panic selling nor active buying intervention, placing the market in a weak equilibrium state