The aim of the work is twofold. The first goal of the paper is to prove that foreign direct investments represent a more resistant type of investment than portfolio and other investments using three measures of volatility: standard deviation, coefficient of variation and volatility index. The research was conducted on a sample of eleven European post-transition countries in the period from the fourth quarter of 1997. to the first quarter of 2021. The results of the research show that foreign direct investments, measured by the coefficient of variation and volatility index, were the most resistant type of investment in all eleven observed countries. According to the standard deviation, foreign direct investment was the least volatile in the five selected countries, while in the other countries portfolio investment was the most stable type of investment. The second goal of the paper is to determine which macroeconomic variables could have influenced the resistance of capital inflows in the Republic of Croatia. The results of the analysis indicate that price stability, in essence inflation, had the greatest impact on the stability of capital inflows in the Republic of Croatia. In addition to inflation, movements on the stock market and the level of foreign exchange reserves had a significant impact on explaining the resistance of capital inflows in the Republic of Croatia.