How did RF's Q4 earnings surprise impact investor sentiment?

RadioShack's (RF) Q4 earnings surprise had a generally positive impact on investor sentiment, as evidenced by the backtest results. The 3-Day win rate was 84.21%, indicating that the stock price rose in the three days following the earnings release in 70.79% of the backtested events. Similarly, the 10-Day win rate was 68.42%, with the stock price rising in the ten days following the earnings release in 64.58% of the backtested events. The 30-Day win rate was 73.68%, with the stock price rising in the thirty days following the earnings release in 70.58% of the backtested events.

The maximum return observed following the earnings release was 13.19%, which occurred on day 79 after the earnings release. This suggests that while there was some volatility in the short term, the positive sentiment surrounding the earnings surprise could lead to significant gains for investors who held their position for several weeks.