TripAdvisor (TRIP) is an online travel company that provides travel-related information, reviews, and booking services for various destinations worldwide. They offer a platform for travelers to plan and book their trips, as well as share their experiences and recommendations.

In terms of technical analysis, the stock of TripAdvisor has recently experienced a collapse following a retest of resistance. A retest of resistance occurs when the stock price reaches a previous level of resistance, which typically acts as a barrier to further price appreciation. In this case, the stock attempted to break above the resistance level but failed, leading to a sharp decline in the stock price.

This collapse suggests that selling pressure has intensified, and investors may have lost confidence in the stock's ability to move higher. Traders and investors should exercise caution and closely monitor the stock's price action before making any investment decisions.